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{
"lighthouse-core/audits/accessibility/accesskeys.js | description": {
"message": "Access keys let users quickly focus a part of the page. For proper navigation, each access key must be unique. [Learn more](https://web.dev/accesskeys/)."
},
"lighthouse-core/audits/accessibility/accesskeys.js | failureTitle": {
"message": "`[accesskey]` values are not unique"
},
"lighthouse-core/audits/accessibility/accesskeys.js | title": {
"message": "`[accesskey]` values are unique"
},
"lighthouse-core/audits/accessibility/aria-allowed-attr.js | description": {
"message": "Each ARIA `role` supports a specific subset of `aria-*` attributes. Mismatching these invalidates the `aria-*` attributes. [Learn more](https://web.dev/aria-allowed-attr/)."
},
"lighthouse-core/audits/accessibility/aria-allowed-attr.js | failureTitle": {
"message": "`[aria-*]` attributes do not match their roles"
},
"lighthouse-core/audits/accessibility/aria-allowed-attr.js | title": {
"message": "`[aria-*]` attributes match their roles"
},
"lighthouse-core/audits/accessibility/aria-required-attr.js | description": {
"message": "Some ARIA roles have required attributes that describe the state of the element to screen readers. [Learn more](https://web.dev/aria-required-attr/)."
},
"lighthouse-core/audits/accessibility/aria-required-attr.js | failureTitle": {
"message": "`[role]`s do not have all required `[aria-*]` attributes"
},
"lighthouse-core/audits/accessibility/aria-required-attr.js | title": {
"message": "`[role]`s have all required `[aria-*]` attributes"
},
"lighthouse-core/audits/accessibility/aria-required-children.js | description": {
"message": "Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. [Learn more](https://web.dev/aria-required-children/)."
},
"lighthouse-core/audits/accessibility/aria-required-children.js | failureTitle": {
"message": "Elements with an ARIA `[role]` that require children to contain a specific `[role]` are missing some or all of those required children."
},
"lighthouse-core/audits/accessibility/aria-required-children.js | title": {
"message": "Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children."
},
"lighthouse-core/audits/accessibility/aria-required-parent.js | description": {
"message": "Some ARIA child roles must be contained by specific parent roles to properly perform their intended accessibility functions. [Learn more](https://web.dev/aria-required-parent/)."
},
"lighthouse-core/audits/accessibility/aria-required-parent.js | failureTitle": {
"message": "`[role]`s are not contained by their required parent element"
},
"lighthouse-core/audits/accessibility/aria-required-parent.js | title": {
"message": "`[role]`s are contained by their required parent element"
},
"lighthouse-core/audits/accessibility/aria-roles.js | description": {
"message": "ARIA roles must have valid values in order to perform their intended accessibility functions. [Learn more](https://web.dev/aria-roles/)."
},
"lighthouse-core/audits/accessibility/aria-roles.js | failureTitle": {
"message": "`[role]` values are not valid"
},
"lighthouse-core/audits/accessibility/aria-roles.js | title": {
"message": "`[role]` values are valid"
},
"lighthouse-core/audits/accessibility/aria-valid-attr-value.js | description": {
"message": "Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. [Learn more](https://web.dev/aria-valid-attr-value/)."
},
"lighthouse-core/audits/accessibility/aria-valid-attr-value.js | failureTitle": {
"message": "`[aria-*]` attributes do not have valid values"
},
"lighthouse-core/audits/accessibility/aria-valid-attr-value.js | title": {
"message": "`[aria-*]` attributes have valid values"
},
"lighthouse-core/audits/accessibility/aria-valid-attr.js | description": {
"message": "Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid names. [Learn more](https://web.dev/aria-valid-attr/)."
},
"lighthouse-core/audits/accessibility/aria-valid-attr.js | failureTitle": {
"message": "`[aria-*]` attributes are not valid or misspelled"
},
"lighthouse-core/audits/accessibility/aria-valid-attr.js | title": {
"message": "`[aria-*]` attributes are valid and not misspelled"
},
"lighthouse-core/audits/accessibility/audio-caption.js | description": {
"message": "Captions make audio elements usable for deaf or hearing-impaired users, providing critical information such as who is talking, what they're saying, and other non-speech information. [Learn more](https://web.dev/audio-caption/)."
},
"lighthouse-core/audits/accessibility/audio-caption.js | failureTitle": {
"message": "`<audio>` elements are missing a `<track>` element with `[kind=\"captions\"]`."
},
"lighthouse-core/audits/accessibility/audio-caption.js | title": {
"message": "`<audio>` elements contain a `<track>` element with `[kind=\"captions\"]`"
},
"lighthouse-core/audits/accessibility/axe-audit.js | failingElementsHeader": {
"message": "Failing Elements"
},
"lighthouse-core/audits/accessibility/button-name.js | description": {
"message": "When a button doesn't have an accessible name, screen readers announce it as \"button\", making it unusable for users who rely on screen readers. [Learn more](https://web.dev/button-name/)."
},
"lighthouse-core/audits/accessibility/button-name.js | failureTitle": {
"message": "Buttons do not have an accessible name"
},
"lighthouse-core/audits/accessibility/button-name.js | title": {
"message": "Buttons have an accessible name"
},
"lighthouse-core/audits/accessibility/bypass.js | description": {
"message": "Adding ways to bypass repetitive content lets keyboard users navigate the page more efficiently. [Learn more](https://web.dev/bypass/)."
},
"lighthouse-core/audits/accessibility/bypass.js | failureTitle": {
"message": "The page does not contain a heading, skip link, or landmark region"
},
"lighthouse-core/audits/accessibility/bypass.js | title": {
"message": "The page contains a heading, skip link, or landmark region"
},
"lighthouse-core/audits/accessibility/color-contrast.js | description": {
"message": "Low-contrast text is difficult or impossible for many users to read. [Learn more](https://web.dev/color-contrast/)."
},
"lighthouse-core/audits/accessibility/color-contrast.js | failureTitle": {
"message": "Background and foreground colors do not have a sufficient contrast ratio."
},
"lighthouse-core/audits/accessibility/color-contrast.js | title": {
"message": "Background and foreground colors have a sufficient contrast ratio"
},
"lighthouse-core/audits/accessibility/definition-list.js | description": {
"message": "When definition lists are not properly marked up, screen readers may produce confusing or inaccurate output. [Learn more](https://web.dev/definition-list/)."
},
"lighthouse-core/audits/accessibility/definition-list.js | failureTitle": {
"message": "`<dl>`'s do not contain only properly-ordered `<dt>` and `<dd>` groups, `<script>` or `<template>` elements."
},
"lighthouse-core/audits/accessibility/definition-list.js | title": {
"message": "`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>` or `<template>` elements."
},
"lighthouse-core/audits/accessibility/dlitem.js | description": {
"message": "Definition list items (`<dt>` and `<dd>`) must be wrapped in a parent `<dl>` element to ensure that screen readers can properly announce them. [Learn more](https://web.dev/dlitem/)."
},
"lighthouse-core/audits/accessibility/dlitem.js | failureTitle": {
"message": "Definition list items are not wrapped in `<dl>` elements"
},
"lighthouse-core/audits/accessibility/dlitem.js | title": {
"message": "Definition list items are wrapped in `<dl>` elements"
},
"lighthouse-core/audits/accessibility/document-title.js | description": {
"message": "The title gives screen reader users an overview of the page, and search engine users rely on it heavily to determine if a page is relevant to their search. [Learn more](https://web.dev/document-title/)."
},
"lighthouse-core/audits/accessibility/document-title.js | failureTitle": {
"message": "Document doesn't have a `<title>` element"
},
"lighthouse-core/audits/accessibility/document-title.js | title": {
"message": "Document has a `<title>` element"
},
"lighthouse-core/audits/accessibility/duplicate-id.js | description": {
"message": "The value of an id attribute must be unique to prevent other instances from being overlooked by assistive technologies. [Learn more](https://web.dev/duplicate-id/)."
},
"lighthouse-core/audits/accessibility/duplicate-id.js | failureTitle": {
"message": "`[id]` attributes on the page are not unique"
},
"lighthouse-core/audits/accessibility/duplicate-id.js | title": {
"message": "`[id]` attributes on the page are unique"
},
"lighthouse-core/audits/accessibility/frame-title.js | description": {
"message": "Screen reader users rely on frame titles to describe the contents of frames. [Learn more](https://web.dev/frame-title/)."
},
"lighthouse-core/audits/accessibility/frame-title.js | failureTitle": {
"message": "`<frame>` or `<iframe>` elements do not have a title"
},
"lighthouse-core/audits/accessibility/frame-title.js | title": {
"message": "`<frame>` or `<iframe>` elements have a title"
},
"lighthouse-core/audits/accessibility/html-has-lang.js | description": {
"message": "If a page doesn't specify a lang attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. [Learn more](https://web.dev/html-has-lang/)."
},
"lighthouse-core/audits/accessibility/html-has-lang.js | failureTitle": {
"message": "`<html>` element does not have a `[lang]` attribute"
},
"lighthouse-core/audits/accessibility/html-has-lang.js | title": {
"message": "`<html>` element has a `[lang]` attribute"
},
"lighthouse-core/audits/accessibility/html-lang-valid.js | description": {
"message": "Specifying a valid [BCP 47 language](https://www.w3.org/International/questions/qa-choosing-language-tags#question) helps screen readers announce text properly. [Learn more](https://web.dev/html-lang-valid/)."
},
"lighthouse-core/audits/accessibility/html-lang-valid.js | failureTitle": {
"message": "`<html>` element does not have a valid value for its `[lang]` attribute."
},
"lighthouse-core/audits/accessibility/html-lang-valid.js | title": {
"message": "`<html>` element has a valid value for its `[lang]` attribute"
},
"lighthouse-core/audits/accessibility/image-alt.js | description": {
"message": "Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. [Learn more](https://web.dev/image-alt/)."
},
"lighthouse-core/audits/accessibility/image-alt.js | failureTitle": {
"message": "Image elements do not have `[alt]` attributes"
},
"lighthouse-core/audits/accessibility/image-alt.js | title": {
"message": "Image elements have `[alt]` attributes"
},
"lighthouse-core/audits/accessibility/input-image-alt.js | description": {
"message": "When an image is being used as an `<input>` button, providing alternative text can help screen reader users understand the purpose of the button. [Learn more](https://web.dev/input-image-alt/)."
},
"lighthouse-core/audits/accessibility/input-image-alt.js | failureTitle": {
"message": "`<input type=\"image\">` elements do not have `[alt]` text"
},
"lighthouse-core/audits/accessibility/input-image-alt.js | title": {
"message": "`<input type=\"image\">` elements have `[alt]` text"
},
"lighthouse-core/audits/accessibility/label.js | description": {
"message": "Labels ensure that form controls are announced properly by assistive technologies, like screen readers. [Learn more](https://web.dev/label/)."
},
"lighthouse-core/audits/accessibility/label.js | failureTitle": {
"message": "Form elements do not have associated labels"
},
"lighthouse-core/audits/accessibility/label.js | title": {
"message": "Form elements have associated labels"
},
"lighthouse-core/audits/accessibility/layout-table.js | description": {
"message": "A table being used for layout purposes should not include data elements, such as the th or caption elements or the summary attribute, because this can create a confusing experience for screen reader users. [Learn more](https://web.dev/layout-table/)."
},
"lighthouse-core/audits/accessibility/layout-table.js | failureTitle": {
"message": "Presentational `<table>` elements do not avoid using `<th>`, `<caption>` or the `[summary]` attribute."
},
"lighthouse-core/audits/accessibility/layout-table.js | title": {
"message": "Presentational `<table>` elements avoid using `<th>`, `<caption>` or the `[summary]` attribute."
},
"lighthouse-core/audits/accessibility/link-name.js | description": {
"message": "Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. [Learn more](https://web.dev/link-name/)."
},
"lighthouse-core/audits/accessibility/link-name.js | failureTitle": {
"message": "Links do not have a discernible name"
},
"lighthouse-core/audits/accessibility/link-name.js | title": {
"message": "Links have a discernible name"
},
"lighthouse-core/audits/accessibility/list.js | description": {
"message": "Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. [Learn more](https://web.dev/list/)."
},
"lighthouse-core/audits/accessibility/list.js | failureTitle": {
"message": "Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`)."
},
"lighthouse-core/audits/accessibility/list.js | title": {
"message": "Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`)."
},
"lighthouse-core/audits/accessibility/listitem.js | description": {
"message": "Screen readers require list items (`<li>`) to be contained within a parent `<ul>` or `<ol>` to be announced properly. [Learn more](https://web.dev/listitem/)."
},
"lighthouse-core/audits/accessibility/listitem.js | failureTitle": {
"message": "List items (`<li>`) are not contained within `<ul>` or `<ol>` parent elements."
},
"lighthouse-core/audits/accessibility/listitem.js | title": {
"message": "List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements"
},
"lighthouse-core/audits/accessibility/meta-refresh.js | description": {
"message": "Users do not expect a page to refresh automatically, and doing so will move focus back to the top of the page. This may create a frustrating or confusing experience. [Learn more](https://web.dev/meta-refresh/)."
},
"lighthouse-core/audits/accessibility/meta-refresh.js | failureTitle": {
"message": "The document uses `<meta http-equiv=\"refresh\">`"
},
"lighthouse-core/audits/accessibility/meta-refresh.js | title": {
"message": "The document does not use `<meta http-equiv=\"refresh\">`"
},
"lighthouse-core/audits/accessibility/meta-viewport.js | description": {
"message": "Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. [Learn more](https://web.dev/meta-viewport/)."
},
"lighthouse-core/audits/accessibility/meta-viewport.js | failureTitle": {
"message": "`[user-scalable=\"no\"]` is used in the `<meta name=\"viewport\">` element or the `[maximum-scale]` attribute is less than 5."
},
"lighthouse-core/audits/accessibility/meta-viewport.js | title": {
"message": "`[user-scalable=\"no\"]` is not used in the `<meta name=\"viewport\">` element and the `[maximum-scale]` attribute is not less than 5."
},
"lighthouse-core/audits/accessibility/object-alt.js | description": {
"message": "Screen readers cannot translate non-text content. Adding alt text to `<object>` elements helps screen readers convey meaning to users. [Learn more](https://web.dev/object-alt/)."
},
"lighthouse-core/audits/accessibility/object-alt.js | failureTitle": {
"message": "`<object>` elements do not have `[alt]` text"
},
"lighthouse-core/audits/accessibility/object-alt.js | title": {
"message": "`<object>` elements have `[alt]` text"
},
"lighthouse-core/audits/accessibility/tabindex.js | description": {
"message": "A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. [Learn more](https://web.dev/tabindex/)."
},
"lighthouse-core/audits/accessibility/tabindex.js | failureTitle": {
"message": "Some elements have a `[tabindex]` value greater than 0"
},
"lighthouse-core/audits/accessibility/tabindex.js | title": {
"message": "No element has a `[tabindex]` value greater than 0"
},
"lighthouse-core/audits/accessibility/td-headers-attr.js | description": {
"message": "Screen readers have features to make navigating tables easier. Ensuring `<td>` cells using the `[headers]` attribute only refer to other cells in the same table may improve the experience for screen reader users. [Learn more](https://web.dev/td-headers-attr/)."
},
"lighthouse-core/audits/accessibility/td-headers-attr.js | failureTitle": {
"message": "Cells in a `<table>` element that use the `[headers]` attribute refer to an element `id` not found within the same table."
},
"lighthouse-core/audits/accessibility/td-headers-attr.js | title": {
"message": "Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table."
},
"lighthouse-core/audits/accessibility/th-has-data-cells.js | description": {
"message": "Screen readers have features to make navigating tables easier. Ensuring table headers always refer to some set of cells may improve the experience for screen reader users. [Learn more](https://web.dev/th-has-data-cells/)."
},
"lighthouse-core/audits/accessibility/th-has-data-cells.js | failureTitle": {
"message": "`<th>` elements and elements with `[role=\"columnheader\"/\"rowheader\"]` do not have data cells they describe."
},
"lighthouse-core/audits/accessibility/th-has-data-cells.js | title": {
"message": "`<th>` elements and elements with `[role=\"columnheader\"/\"rowheader\"]` have data cells they describe."
},
"lighthouse-core/audits/accessibility/valid-lang.js | description": {
"message": "Specifying a valid [BCP 47 language](https://www.w3.org/International/questions/qa-choosing-language-tags#question) on elements helps ensure that text is pronounced correctly by a screen reader. [Learn more](https://web.dev/valid-lang/)."
},
"lighthouse-core/audits/accessibility/valid-lang.js | failureTitle": {
"message": "`[lang]` attributes do not have a valid value"
},
"lighthouse-core/audits/accessibility/valid-lang.js | title": {
"message": "`[lang]` attributes have a valid value"
},
"lighthouse-core/audits/accessibility/video-caption.js | description": {
"message": "When a video provides a caption it is easier for deaf and hearing impaired users to access its information. [Learn more](https://web.dev/video-caption/)."
},
"lighthouse-core/audits/accessibility/video-caption.js | failureTitle": {
"message": "`<video>` elements do not contain a `<track>` element with `[kind=\"captions\"]`."
},
"lighthouse-core/audits/accessibility/video-caption.js | title": {
"message": "`<video>` elements contain a `<track>` element with `[kind=\"captions\"]`"
},
"lighthouse-core/audits/accessibility/video-description.js | description": {
"message": "Audio descriptions provide relevant information for videos that dialogue cannot, such as facial expressions and scenes. [Learn more](https://web.dev/video-description/)."
},
"lighthouse-core/audits/accessibility/video-description.js | failureTitle": {
"message": "`<video>` elements do not contain a `<track>` element with `[kind=\"description\"]`."
},
"lighthouse-core/audits/accessibility/video-description.js | title": {
"message": "`<video>` elements contain a `<track>` element with `[kind=\"description\"]`"
},
"lighthouse-core/audits/apple-touch-icon.js | description": {
"message": "For ideal appearance on iOS when users add a progressive web app to the home screen, define an `apple-touch-icon`. It must point to a non-transparent 192px (or 180px) square PNG. [Learn More](https://web.dev/apple-touch-icon/)."
},
"lighthouse-core/audits/apple-touch-icon.js | failureTitle": {
"message": "Does not provide a valid `apple-touch-icon`"
},
"lighthouse-core/audits/apple-touch-icon.js | precomposedWarning": {
"message": "`apple-touch-icon-precomposed` is out of date; `apple-touch-icon` is preferred."
},
"lighthouse-core/audits/apple-touch-icon.js | title": {
"message": "Provides a valid `apple-touch-icon`"
},
"lighthouse-core/audits/bootup-time.js | chromeExtensionsWarning": {
"message": "Chrome extensions negatively affected this page's load performance. Try auditing the page in incognito mode or from a Chrome profile without extensions."
},
"lighthouse-core/audits/bootup-time.js | columnScriptEval": {
"message": "Script Evaluation"
},
"lighthouse-core/audits/bootup-time.js | columnScriptParse": {
"message": "Script Parse"
},
"lighthouse-core/audits/bootup-time.js | columnTotal": {
"message": "Total CPU Time"
},
"lighthouse-core/audits/bootup-time.js | description": {
"message": "Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. [Learn more](https://web.dev/bootup-time)."
},
"lighthouse-core/audits/bootup-time.js | failureTitle": {
"message": "Reduce JavaScript execution time"
},
"lighthouse-core/audits/bootup-time.js | title": {
"message": "JavaScript execution time"
},
"lighthouse-core/audits/byte-efficiency/efficient-animated-content.js | description": {
"message": "Large GIFs are inefficient for delivering animated content. Consider using MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF to save network bytes. [Learn more](https://web.dev/efficient-animated-content)"
},
"lighthouse-core/audits/byte-efficiency/efficient-animated-content.js | title": {
"message": "Use video formats for animated content"
},
"lighthouse-core/audits/byte-efficiency/offscreen-images.js | description": {
"message": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn more](https://web.dev/offscreen-images)."
},
"lighthouse-core/audits/byte-efficiency/offscreen-images.js | title": {
"message": "Defer offscreen images"
},
"lighthouse-core/audits/byte-efficiency/render-blocking-resources.js | description": {
"message": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn more](https://web.dev/render-blocking-resources)."
},
"lighthouse-core/audits/byte-efficiency/render-blocking-resources.js | title": {
"message": "Eliminate render-blocking resources"
},
"lighthouse-core/audits/byte-efficiency/total-byte-weight.js | description": {
"message": "Large network payloads cost users real money and are highly correlated with long load times. [Learn more](https://web.dev/total-byte-weight)."
},
"lighthouse-core/audits/byte-efficiency/total-byte-weight.js | displayValue": {
"message": "Total size was {totalBytes, number, bytes} KB"
},
"lighthouse-core/audits/byte-efficiency/total-byte-weight.js | failureTitle": {
"message": "Avoid enormous network payloads"
},
"lighthouse-core/audits/byte-efficiency/total-byte-weight.js | title": {
"message": "Avoids enormous network payloads"
},
"lighthouse-core/audits/byte-efficiency/unminified-css.js | description": {
"message": "Minifying CSS files can reduce network payload sizes. [Learn more](https://web.dev/unminified-css)."
},
"lighthouse-core/audits/byte-efficiency/unminified-css.js | title": {
"message": "Minify CSS"
},
"lighthouse-core/audits/byte-efficiency/unminified-javascript.js | description": {
"message": "Minifying JavaScript files can reduce payload sizes and script parse time. [Learn more](https://web.dev/unminified-javascript)."
},
"lighthouse-core/audits/byte-efficiency/unminified-javascript.js | title": {
"message": "Minify JavaScript"
},
"lighthouse-core/audits/byte-efficiency/unused-css-rules.js | description": {
"message": "Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity. [Learn more](https://web.dev/unused-css-rules)."
},
"lighthouse-core/audits/byte-efficiency/unused-css-rules.js | title": {
"message": "Remove unused CSS"
},
"lighthouse-core/audits/byte-efficiency/unused-javascript.js | description": {
"message": "Remove unused JavaScript to reduce bytes consumed by network activity."
},
"lighthouse-core/audits/byte-efficiency/unused-javascript.js | title": {
"message": "Remove unused JavaScript"
},
"lighthouse-core/audits/byte-efficiency/uses-long-cache-ttl.js | description": {
"message": "A long cache lifetime can speed up repeat visits to your page. [Learn more](https://web.dev/uses-long-cache-ttl)."
},
"lighthouse-core/audits/byte-efficiency/uses-long-cache-ttl.js | displayValue": {
"message": "{itemCount, plural,\n =1 {1 resource found}\n other {# resources found}\n }"
},
"lighthouse-core/audits/byte-efficiency/uses-long-cache-ttl.js | failureTitle": {
"message": "Serve static assets with an efficient cache policy"
},
"lighthouse-core/audits/byte-efficiency/uses-long-cache-ttl.js | title": {
"message": "Uses efficient cache policy on static assets"
},
"lighthouse-core/audits/byte-efficiency/uses-optimized-images.js | description": {
"message": "Optimized images load faster and consume less cellular data. [Learn more](https://web.dev/uses-optimized-images)."
},
"lighthouse-core/audits/byte-efficiency/uses-optimized-images.js | title": {
"message": "Efficiently encode images"
},
"lighthouse-core/audits/byte-efficiency/uses-responsive-images.js | description": {
"message": "Serve images that are appropriately-sized to save cellular data and improve load time. [Learn more](https://web.dev/uses-responsive-images)."
},
"lighthouse-core/audits/byte-efficiency/uses-responsive-images.js | title": {
"message": "Properly size images"
},
"lighthouse-core/audits/byte-efficiency/uses-text-compression.js | description": {
"message": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more](https://web.dev/uses-text-compression)."
},
"lighthouse-core/audits/byte-efficiency/uses-text-compression.js | title": {
"message": "Enable text compression"
},
"lighthouse-core/audits/byte-efficiency/uses-webp-images.js | description": {
"message": "Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more](https://web.dev/uses-webp-images)."
},
"lighthouse-core/audits/byte-efficiency/uses-webp-images.js | title": {
"message": "Serve images in next-gen formats"
},
"lighthouse-core/audits/content-width.js | description": {
"message": "If the width of your app's content doesn't match the width of the viewport, your app might not be optimized for mobile screens. [Learn more](https://web.dev/content-width)."
},
"lighthouse-core/audits/content-width.js | explanation": {
"message": "The viewport size of {innerWidth}px does not match the window size of {outerWidth}px."
},
"lighthouse-core/audits/content-width.js | failureTitle": {
"message": "Content is not sized correctly for the viewport"
},
"lighthouse-core/audits/content-width.js | title": {
"message": "Content is sized correctly for the viewport"
},
"lighthouse-core/audits/critical-request-chains.js | description": {
"message": "The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load. [Learn more](https://web.dev/critical-request-chains)."
},
"lighthouse-core/audits/critical-request-chains.js | displayValue": {
"message": "{itemCount, plural,\n =1 {1 chain found}\n other {# chains found}\n }"
},
"lighthouse-core/audits/critical-request-chains.js | title": {
"message": "Avoid chaining critical requests"
},
"lighthouse-core/audits/deprecations.js | columnDeprecate": {
"message": "Deprecation / Warning"
},
"lighthouse-core/audits/deprecations.js | columnLine": {
"message": "Line"
},
"lighthouse-core/audits/deprecations.js | description": {
"message": "Deprecated APIs will eventually be removed from the browser. [Learn more](https://web.dev/deprecations)."
},
"lighthouse-core/audits/deprecations.js | displayValue": {
"message": "{itemCount, plural,\n =1 {1 warning found}\n other {# warnings found}\n }"
},
"lighthouse-core/audits/deprecations.js | failureTitle": {
"message": "Uses deprecated APIs"
},
"lighthouse-core/audits/deprecations.js | title": {
"message": "Avoids deprecated APIs"
},
"lighthouse-core/audits/dobetterweb/appcache-manifest.js | description": {
"message": "Application Cache is deprecated. [Learn more](https://web.dev/appcache-manifest)."
},
"lighthouse-core/audits/dobetterweb/appcache-manifest.js | displayValue": {
"message": "Found \"{AppCacheManifest}\""
},
"lighthouse-core/audits/dobetterweb/appcache-manifest.js | failureTitle": {
"message": "Uses Application Cache"
},
"lighthouse-core/audits/dobetterweb/appcache-manifest.js | title": {
"message": "Avoids Application Cache"
},
"lighthouse-core/audits/dobetterweb/doctype.js | description": {
"message": "Specifying a doctype prevents the browser from switching to quirks-mode. [Learn more](https://web.dev/doctype)."
},
"lighthouse-core/audits/dobetterweb/doctype.js | explanationBadDoctype": {
"message": "Doctype name must be the lowercase string `html`"
},
"lighthouse-core/audits/dobetterweb/doctype.js | explanationNoDoctype": {
"message": "Document must contain a doctype"
},
"lighthouse-core/audits/dobetterweb/doctype.js | explanationPublicId": {
"message": "Expected publicId to be an empty string"
},
"lighthouse-core/audits/dobetterweb/doctype.js | explanationSystemId": {
"message": "Expected systemId to be an empty string"
},
"lighthouse-core/audits/dobetterweb/doctype.js | failureTitle": {
"message": "Page lacks the HTML doctype, thus triggering quirks-mode"
},
"lighthouse-core/audits/dobetterweb/doctype.js | title": {
"message": "Page has the HTML doctype"
},
"lighthouse-core/audits/dobetterweb/dom-size.js | columnElement": {
"message": "Element"
},
"lighthouse-core/audits/dobetterweb/dom-size.js | columnStatistic": {
"message": "Statistic"
},
"lighthouse-core/audits/dobetterweb/dom-size.js | columnValue": {
"message": "Value"
},
"lighthouse-core/audits/dobetterweb/dom-size.js | description": {
"message": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn more](https://web.dev/dom-size)."
},
"lighthouse-core/audits/dobetterweb/dom-size.js | displayValue": {
"message": "{itemCount, plural,\n =1 {1 element}\n other {# elements}\n }"
},
"lighthouse-core/audits/dobetterweb/dom-size.js | failureTitle": {
"message": "Avoid an excessive DOM size"
},
"lighthouse-core/audits/dobetterweb/dom-size.js | statisticDOMDepth": {
"message": "Maximum DOM Depth"
},
"lighthouse-core/audits/dobetterweb/dom-size.js | statisticDOMElements": {
"message": "Total DOM Elements"
},
"lighthouse-core/audits/dobetterweb/dom-size.js | statisticDOMWidth": {
"message": "Maximum Child Elements"
},
"lighthouse-core/audits/dobetterweb/dom-size.js | title": {
"message": "Avoids an excessive DOM size"
},
"lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | columnRel": {
"message": "Rel"
},
"lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | columnTarget": {
"message": "Target"
},
"lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | description": {
"message": "Add `rel=\"noopener\"` or `rel=\"noreferrer\"` to any external links to improve performance and prevent security vulnerabilities. [Learn more](https://web.dev/external-anchors-use-rel-noopener)."
},
"lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | failureTitle": {
"message": "Links to cross-origin destinations are unsafe"
},
"lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | title": {
"message": "Links to cross-origin destinations are safe"
},
"lighthouse-core/audits/dobetterweb/external-anchors-use-rel-noopener.js | warning": {
"message": "Unable to determine the destination for anchor ({anchorHTML}). If not used as a hyperlink, consider removing target=_blank."
},
"lighthouse-core/audits/dobetterweb/geolocation-on-start.js | description": {
"message": "Users are mistrustful of or confused by sites that request their location without context. Consider tying the request to a user action instead. [Learn more](https://web.dev/geolocation-on-start)."
},
"lighthouse-core/audits/dobetterweb/geolocation-on-start.js | failureTitle": {
"message": "Requests the geolocation permission on page load"
},
"lighthouse-core/audits/dobetterweb/geolocation-on-start.js | title": {
"message": "Avoids requesting the geolocation permission on page load"
},
"lighthouse-core/audits/dobetterweb/js-libraries.js | columnVersion": {
"message": "Version"
},
"lighthouse-core/audits/dobetterweb/js-libraries.js | description": {
"message": "All front-end JavaScript libraries detected on the page. [Learn more](https://web.dev/js-libraries)."
},
"lighthouse-core/audits/dobetterweb/js-libraries.js | title": {
"message": "Detected JavaScript libraries"
},
"lighthouse-core/audits/dobetterweb/no-document-write.js | description": {
"message": "For users on slow connections, external scripts dynamically injected via `document.write()` can delay page load by tens of seconds. [Learn more](https://web.dev/no-document-write)."
},
"lighthouse-core/audits/dobetterweb/no-document-write.js | failureTitle": {
"message": "Uses `document.write()`"
},
"lighthouse-core/audits/dobetterweb/no-document-write.js | title": {
"message": "Avoids `document.write()`"
},
"lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | columnSeverity": {
"message": "Highest Severity"
},
"lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | columnVersion": {
"message": "Library Version"
},
"lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | columnVuln": {
"message": "Vulnerability Count"
},
"lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | description": {
"message": "Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers. [Learn more](https://web.dev/no-vulnerable-libraries)."
},
"lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | displayValue": {
"message": "{itemCount, plural,\n =1 {1 vulnerability detected}\n other {# vulnerabilities detected}\n }"
},
"lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | failureTitle": {
"message": "Includes front-end JavaScript libraries with known security vulnerabilities"
},
"lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | rowSeverityHigh": {
"message": "High"
},
"lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | rowSeverityLow": {
"message": "Low"
},
"lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | rowSeverityMedium": {
"message": "Medium"
},
"lighthouse-core/audits/dobetterweb/no-vulnerable-libraries.js | title": {
"message": "Avoids front-end JavaScript libraries with known security vulnerabilities"
},
"lighthouse-core/audits/dobetterweb/notification-on-start.js | description": {
"message": "Users are mistrustful of or confused by sites that request to send notifications without context. Consider tying the request to user gestures instead. [Learn more](https://web.dev/notification-on-start)."
},
"lighthouse-core/audits/dobetterweb/notification-on-start.js | failureTitle": {
"message": "Requests the notification permission on page load"
},
"lighthouse-core/audits/dobetterweb/notification-on-start.js | title": {
"message": "Avoids requesting the notification permission on page load"
},
"lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js | columnFailingElem": {
"message": "Failing Elements"
},
"lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js | description": {
"message": "Preventing password pasting undermines good security policy. [Learn more](https://web.dev/password-inputs-can-be-pasted-into)."
},
"lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js | failureTitle": {
"message": "Prevents users to paste into password fields"
},
"lighthouse-core/audits/dobetterweb/password-inputs-can-be-pasted-into.js | title": {
"message": "Allows users to paste into password fields"
},
"lighthouse-core/audits/dobetterweb/uses-http2.js | columnProtocol": {
"message": "Protocol"
},
"lighthouse-core/audits/dobetterweb/uses-http2.js | description": {
"message": "HTTP/2 offers many benefits over HTTP/1.1, including binary headers, multiplexing, and server push. [Learn more](https://web.dev/uses-http2)."
},
"lighthouse-core/audits/dobetterweb/uses-http2.js | displayValue": {
"message": "{itemCount, plural,\n =1 {1 request not served via HTTP/2}\n other {# requests not served via HTTP/2}\n }"
},
"lighthouse-core/audits/dobetterweb/uses-http2.js | failureTitle": {
"message": "Does not use HTTP/2 for all of its resources"
},
"lighthouse-core/audits/dobetterweb/uses-http2.js | title": {
"message": "Uses HTTP/2 for its own resources"
},
"lighthouse-core/audits/dobetterweb/uses-passive-event-listeners.js | description": {
"message": "Consider marking your touch and wheel event listeners as `passive` to improve your page's scroll performance. [Learn more](https://web.dev/uses-passive-event-listeners)."
},
"lighthouse-core/audits/dobetterweb/uses-passive-event-listeners.js | failureTitle": {
"message": "Does not use passive listeners to improve scrolling performance"
},
"lighthouse-core/audits/dobetterweb/uses-passive-event-listeners.js | title": {
"message": "Uses passive listeners to improve scrolling performance"
},
"lighthouse-core/audits/errors-in-console.js | columnDesc": {
"message": "Description"
},
"lighthouse-core/audits/errors-in-console.js | description": {
"message": "Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. [Learn more](https://web.dev/errors-in-console)"
},
"lighthouse-core/audits/errors-in-console.js | failureTitle": {
"message": "Browser errors were logged to the console"
},
"lighthouse-core/audits/errors-in-console.js | title": {
"message": "No browser errors logged to the console"
},
"lighthouse-core/audits/font-display.js | description": {
"message": "Leverage the font-display CSS feature to ensure text is user-visible while webfonts are loading. [Learn more](https://web.dev/font-display)."
},
"lighthouse-core/audits/font-display.js | failureTitle": {
"message": "Ensure text remains visible during webfont load"
},
"lighthouse-core/audits/font-display.js | title": {
"message": "All text remains visible during webfont loads"
},
"lighthouse-core/audits/font-display.js | undeclaredFontURLWarning": {
"message": "Lighthouse was unable to automatically check the font-display value for the following URL: {fontURL}."
},
"lighthouse-core/audits/image-aspect-ratio.js | columnActual": {
"message": "Aspect Ratio (Actual)"
},
"lighthouse-core/audits/image-aspect-ratio.js | columnDisplayed": {
"message": "Aspect Ratio (Displayed)"
},
"lighthouse-core/audits/image-aspect-ratio.js | description": {
"message": "Image display dimensions should match natural aspect ratio. [Learn more](https://web.dev/image-aspect-ratio)."
},
"lighthouse-core/audits/image-aspect-ratio.js | failureTitle": {
"message": "Displays images with incorrect aspect ratio"
},
"lighthouse-core/audits/image-aspect-ratio.js | title": {
"message": "Displays images with correct aspect ratio"
},
"lighthouse-core/audits/image-aspect-ratio.js | warningCompute": {
"message": "Invalid image sizing information {url}"
},
"lighthouse-core/audits/installable-manifest.js | description": {
"message": "Browsers can proactively prompt users to add your app to their homescreen, which can lead to higher engagement. [Learn more](https://web.dev/installable-manifest)."
},
"lighthouse-core/audits/installable-manifest.js | failureTitle": {
"message": "Web app manifest does not meet the installability requirements"
},
"lighthouse-core/audits/installable-manifest.js | title": {
"message": "Web app manifest meets the installability requirements"
},
"lighthouse-core/audits/is-on-https.js | columnInsecureURL": {
"message": "Insecure URL"
},
"lighthouse-core/audits/is-on-https.js | description": {
"message": "All sites should be protected with HTTPS, even ones that don't handle sensitive data. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. [Learn more](https://web.dev/is-on-https)."
},
"lighthouse-core/audits/is-on-https.js | displayValue": {
"message": "{itemCount, plural,\n =1 {1 insecure request found}\n other {# insecure requests found}\n }"
},
"lighthouse-core/audits/is-on-https.js | failureTitle": {
"message": "Does not use HTTPS"
},
"lighthouse-core/audits/is-on-https.js | title": {
"message": "Uses HTTPS"
},
"lighthouse-core/audits/load-fast-enough-for-pwa.js | description": {
"message": "A fast page load over a cellular network ensures a good mobile user experience. [Learn more](https://web.dev/load-fast-enough-for-pwa)."
},
"lighthouse-core/audits/load-fast-enough-for-pwa.js | displayValueText": {
"message": "Interactive at {timeInMs, number, seconds} s"
},
"lighthouse-core/audits/load-fast-enough-for-pwa.js | displayValueTextWithOverride": {
"message": "Interactive on simulated mobile network at {timeInMs, number, seconds} s"
},
"lighthouse-core/audits/load-fast-enough-for-pwa.js | explanationLoadSlow": {
"message": "Your page loads too slowly and is not interactive within 10 seconds. Look at the opportunities and diagnostics in the \"Performance\" section to learn how to improve."
},
"lighthouse-core/audits/load-fast-enough-for-pwa.js | failureTitle": {
"message": "Page load is not fast enough on mobile networks"
},
"lighthouse-core/audits/load-fast-enough-for-pwa.js | title": {
"message": "Page load is fast enough on mobile networks"
},
"lighthouse-core/audits/mainthread-work-breakdown.js | columnCategory": {
"message": "Category"
},
"lighthouse-core/audits/mainthread-work-breakdown.js | description": {
"message": "Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. [Learn more](https://web.dev/mainthread-work-breakdown)"
},
"lighthouse-core/audits/mainthread-work-breakdown.js | failureTitle": {
"message": "Minimize main-thread work"
},
"lighthouse-core/audits/mainthread-work-breakdown.js | title": {
"message": "Minimizes main-thread work"
},
"lighthouse-core/audits/manual/pwa-cross-browser.js | description": {
"message": "To reach the most number of users, sites should work across every major browser. [Learn more](https://web.dev/pwa-cross-browser)."
},
"lighthouse-core/audits/manual/pwa-cross-browser.js | title": {
"message": "Site works cross-browser"
},
"lighthouse-core/audits/manual/pwa-each-page-has-url.js | description": {
"message": "Ensure individual pages are deep linkable via URL and that URLs are unique for the purpose of shareability on social media. [Learn more](https://web.dev/pwa-each-page-has-url)."
},
"lighthouse-core/audits/manual/pwa-each-page-has-url.js | title": {
"message": "Each page has a URL"
},
"lighthouse-core/audits/manual/pwa-page-transitions.js | description": {
"message": "Transitions should feel snappy as you tap around, even on a slow network. This experience is key to a user's perception of performance. [Learn more](https://web.dev/pwa-page-transitions)."
},
"lighthouse-core/audits/manual/pwa-page-transitions.js | title": {
"message": "Page transitions don't feel like they block on the network"
},
"lighthouse-core/audits/metrics/estimated-input-latency.js | description": {
"message": "Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy. [Learn more](https://web.dev/estimated-input-latency)."
},
"lighthouse-core/audits/metrics/estimated-input-latency.js | title": {
"message": "Estimated Input Latency"
},
"lighthouse-core/audits/metrics/first-contentful-paint.js | description": {
"message": "First Contentful Paint marks the time at which the first text or image is painted. [Learn more](https://web.dev/first-contentful-paint)."
},
"lighthouse-core/audits/metrics/first-contentful-paint.js | title": {
"message": "First Contentful Paint"
},
"lighthouse-core/audits/metrics/first-cpu-idle.js | description": {
"message": "First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle)."
},
"lighthouse-core/audits/metrics/first-cpu-idle.js | title": {
"message": "First CPU Idle"
},
"lighthouse-core/audits/metrics/first-meaningful-paint.js | description": {
"message": "First Meaningful Paint measures when the primary content of a page is visible. [Learn more](https://web.dev/first-meaningful-paint)."
},
"lighthouse-core/audits/metrics/first-meaningful-paint.js | title": {
"message": "First Meaningful Paint"
},
"lighthouse-core/audits/metrics/interactive.js | description": {
"message": "Time to interactive is the amount of time it takes for the page to become fully interactive. [Learn more](https://web.dev/interactive)."
},
"lighthouse-core/audits/metrics/interactive.js | title": {
"message": "Time to Interactive"
},
"lighthouse-core/audits/metrics/max-potential-fid.js | description": {
"message": "The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task. [Learn more](https://developers.google.com/web/updates/2018/05/first-input-delay)."
},
"lighthouse-core/audits/metrics/max-potential-fid.js | title": {
"message": "Max Potential First Input Delay"
},
"lighthouse-core/audits/metrics/speed-index.js | description": {
"message": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more](https://web.dev/speed-index)."
},
"lighthouse-core/audits/metrics/speed-index.js | title": {
"message": "Speed Index"
},
"lighthouse-core/audits/metrics/total-blocking-time.js | description": {
"message": "Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds."
},
"lighthouse-core/audits/metrics/total-blocking-time.js | title": {
"message": "Total Blocking Time"
},
"lighthouse-core/audits/network-rtt.js | description": {
"message": "Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance. [Learn more](https://hpbn.co/primer-on-latency-and-bandwidth/)."
},
"lighthouse-core/audits/network-rtt.js | title": {
"message": "Network Round Trip Times"
},
"lighthouse-core/audits/network-server-latency.js | description": {
"message": "Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance. [Learn more](https://hpbn.co/primer-on-web-performance/#analyzing-the-resource-waterfall)."
},
"lighthouse-core/audits/network-server-latency.js | title": {
"message": "Server Backend Latencies"
},
"lighthouse-core/audits/offline-start-url.js | description": {
"message": "A service worker enables your web app to be reliable in unpredictable network conditions. [Learn more](https://web.dev/offline-start-url)."
},
"lighthouse-core/audits/offline-start-url.js | failureTitle": {
"message": "`start_url` does not respond with a 200 when offline"
},
"lighthouse-core/audits/offline-start-url.js | title": {
"message": "`start_url` responds with a 200 when offline"
},
"lighthouse-core/audits/offline-start-url.js | warningCantStart": {
"message": "Lighthouse couldn't read the `start_url` from the manifest. As a result, the `start_url` was assumed to be the document's URL. Error message: '{manifestWarning}'."
},
"lighthouse-core/audits/performance-budget.js | columnOverBudget": {
"message": "Over Budget"
},
"lighthouse-core/audits/performance-budget.js | description": {
"message": "Keep the quantity and size of network requests under the targets set by the provided performance budget. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/budgets)."
},
"lighthouse-core/audits/performance-budget.js | requestCountOverBudget": {
"message": "{count, plural,\n =1 {1 request}\n other {# requests}\n }"
},
"lighthouse-core/audits/performance-budget.js | title": {
"message": "Performance budget"
},
"lighthouse-core/audits/redirects-http.js | description": {
"message": "If you've already set up HTTPS, make sure that you redirect all HTTP traffic to HTTPS in order to enable secure web features for all your users. [Learn more](https://web.dev/redirects-http)."
},
"lighthouse-core/audits/redirects-http.js | failureTitle": {
"message": "Does not redirect HTTP traffic to HTTPS"
},
"lighthouse-core/audits/redirects-http.js | title": {
"message": "Redirects HTTP traffic to HTTPS"
},
"lighthouse-core/audits/redirects.js | description": {
"message": "Redirects introduce additional delays before the page can be loaded. [Learn more](https://web.dev/redirects)."
},
"lighthouse-core/audits/redirects.js | title": {
"message": "Avoid multiple page redirects"
},
"lighthouse-core/audits/resource-summary.js | description": {
"message": "To set budgets for the quantity and size of page resources, add a budget.json file. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/budgets)."
},
"lighthouse-core/audits/resource-summary.js | displayValue": {
"message": "{requestCount, plural, =1 {1 request • {byteCount, number, bytes} KB} other {# requests • {byteCount, number, bytes} KB}}"
},
"lighthouse-core/audits/resource-summary.js | title": {
"message": "Keep request counts low and transfer sizes small"
},
"lighthouse-core/audits/seo/canonical.js | description": {
"message": "Canonical links suggest which URL to show in search results. [Learn more](https://web.dev/canonical)."
},
"lighthouse-core/audits/seo/canonical.js | explanationConflict": {
"message": "Multiple conflicting URLs ({urlList})"
},
"lighthouse-core/audits/seo/canonical.js | explanationDifferentDomain": {
"message": "Points to a different domain ({url})"
},
"lighthouse-core/audits/seo/canonical.js | explanationInvalid": {
"message": "Invalid URL ({url})"
},
"lighthouse-core/audits/seo/canonical.js | explanationPointsElsewhere": {
"message": "Points to another `hreflang` location ({url})"
},
"lighthouse-core/audits/seo/canonical.js | explanationRelative": {
"message": "Relative URL ({url})"
},
"lighthouse-core/audits/seo/canonical.js | explanationRoot": {
"message": "Points to the domain's root URL (the homepage), instead of an equivalent page of content"
},
"lighthouse-core/audits/seo/canonical.js | failureTitle": {
"message": "Document does not have a valid `rel=canonical`"
},
"lighthouse-core/audits/seo/canonical.js | title": {
"message": "Document has a valid `rel=canonical`"
},
"lighthouse-core/audits/seo/font-size.js | description": {
"message": "Font sizes less than 12px are too small to be legible and require mobile visitors to “pinch to zoom” in order to read. Strive to have >60% of page text ≥12px. [Learn more](https://web.dev/font-size)."
},
"lighthouse-core/audits/seo/font-size.js | displayValue": {
"message": "{decimalProportion, number, extendedPercent} legible text"
},
"lighthouse-core/audits/seo/font-size.js | explanationViewport": {
"message": "Text is illegible because there's no viewport meta tag optimized for mobile screens."
},
"lighthouse-core/audits/seo/font-size.js | explanationWithDisclaimer": {
"message": "{decimalProportion, number, extendedPercent} of text is too small (based on {decimalProportionVisited, number, extendedPercent} sample)."
},
"lighthouse-core/audits/seo/font-size.js | failureTitle": {
"message": "Document doesn't use legible font sizes"
},
"lighthouse-core/audits/seo/font-size.js | title": {
"message": "Document uses legible font sizes"
},
"lighthouse-core/audits/seo/hreflang.js | description": {
"message": "hreflang links tell search engines what version of a page they should list in search results for a given language or region. [Learn more](https://web.dev/hreflang)."
},
"lighthouse-core/audits/seo/hreflang.js | failureTitle": {
"message": "Document doesn't have a valid `hreflang`"
},
"lighthouse-core/audits/seo/hreflang.js | title": {
"message": "Document has a valid `hreflang`"
},
"lighthouse-core/audits/seo/http-status-code.js | description": {
"message": "Pages with unsuccessful HTTP status codes may not be indexed properly. [Learn more](https://web.dev/http-status-code)."
},
"lighthouse-core/audits/seo/http-status-code.js | failureTitle": {
"message": "Page has unsuccessful HTTP status code"
},
"lighthouse-core/audits/seo/http-status-code.js | title": {
"message": "Page has successful HTTP status code"
},
"lighthouse-core/audits/seo/is-crawlable.js | description": {
"message": "Search engines are unable to include your pages in search results if they don't have permission to crawl them. [Learn more](https://web.dev/is-crawable)."
},
"lighthouse-core/audits/seo/is-crawlable.js | failureTitle": {
"message": "Page is blocked from indexing"
},
"lighthouse-core/audits/seo/is-crawlable.js | title": {
"message": "Page isn’t blocked from indexing"
},
"lighthouse-core/audits/seo/link-text.js | description": {
"message": "Descriptive link text helps search engines understand your content. [Learn more](https://web.dev/link-text)."
},
"lighthouse-core/audits/seo/link-text.js | displayValue": {
"message": "{itemCount, plural,\n =1 {1 link found}\n other {# links found}\n }"
},
"lighthouse-core/audits/seo/link-text.js | failureTitle": {
"message": "Links do not have descriptive text"
},
"lighthouse-core/audits/seo/link-text.js | title": {
"message": "Links have descriptive text"
},
"lighthouse-core/audits/seo/manual/structured-data.js | description": {
"message": "Run the [Structured Data Testing Tool](https://search.google.com/structured-data/testing-tool/) and the [Structured Data Linter](http://linter.structured-data.org/) to validate structured data. [Learn more](https://web.dev/structured-data)."
},
"lighthouse-core/audits/seo/manual/structured-data.js | title": {
"message": "Structured data is valid"
},
"lighthouse-core/audits/seo/meta-description.js | description": {
"message": "Meta descriptions may be included in search results to concisely summarize page content. [Learn more](https://web.dev/meta-description)."
},
"lighthouse-core/audits/seo/meta-description.js | explanation": {
"message": "Description text is empty."
},
"lighthouse-core/audits/seo/meta-description.js | failureTitle": {
"message": "Document does not have a meta description"
},
"lighthouse-core/audits/seo/meta-description.js | title": {
"message": "Document has a meta description"
},
"lighthouse-core/audits/seo/plugins.js | description": {
"message": "Search engines can't index plugin content, and many devices restrict plugins or don't support them. [Learn more](https://web.dev/plugins)."
},
"lighthouse-core/audits/seo/plugins.js | failureTitle": {
"message": "Document uses plugins"
},
"lighthouse-core/audits/seo/plugins.js | title": {
"message": "Document avoids plugins"
},
"lighthouse-core/audits/seo/robots-txt.js | description": {
"message": "If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed. [Learn more](https://web.dev/robots-txt)."
},
"lighthouse-core/audits/seo/robots-txt.js | displayValueHttpBadCode": {
"message": "Request for robots.txt returned HTTP status: {statusCode}"
},
"lighthouse-core/audits/seo/robots-txt.js | displayValueValidationError": {
"message": "{itemCount, plural,\n =1 {1 error found}\n other {# errors found}\n }"
},
"lighthouse-core/audits/seo/robots-txt.js | explanation": {
"message": "Lighthouse was unable to download a robots.txt file"
},
"lighthouse-core/audits/seo/robots-txt.js | failureTitle": {
"message": "robots.txt is not valid"
},
"lighthouse-core/audits/seo/robots-txt.js | title": {
"message": "robots.txt is valid"
},
"lighthouse-core/audits/seo/tap-targets.js | description": {
"message": "Interactive elements like buttons and links should be large enough (48x48px), and have enough space around them, to be easy enough to tap without overlapping onto other elements. [Learn more](https://web.dev/tap-targets)."
},
"lighthouse-core/audits/seo/tap-targets.js | displayValue": {
"message": "{decimalProportion, number, percent} appropriately sized tap targets"
},
"lighthouse-core/audits/seo/tap-targets.js | explanationViewportMetaNotOptimized": {
"message": "Tap targets are too small because there's no viewport meta tag optimized for mobile screens"
},
"lighthouse-core/audits/seo/tap-targets.js | failureTitle": {
"message": "Tap targets are not sized appropriately"
},
"lighthouse-core/audits/seo/tap-targets.js | overlappingTargetHeader": {
"message": "Overlapping Target"
},
"lighthouse-core/audits/seo/tap-targets.js | tapTargetHeader": {
"message": "Tap Target"
},
"lighthouse-core/audits/seo/tap-targets.js | title": {
"message": "Tap targets are sized appropriately"
},
"lighthouse-core/audits/service-worker.js | description": {
"message": "The service worker is the technology that enables your app to use many Progressive Web App features, such as offline, add to homescreen, and push notifications. [Learn more](https://web.dev/service-worker)."
},
"lighthouse-core/audits/service-worker.js | explanationBadManifest": {
"message": "This page is controlled by a service worker, however no `start_url` was found because manifest failed to parse as valid JSON"
},
"lighthouse-core/audits/service-worker.js | explanationBadStartUrl": {
"message": "This page is controlled by a service worker, however the `start_url` ({startUrl}) is not in the service worker's scope ({scopeUrl})"
},
"lighthouse-core/audits/service-worker.js | explanationNoManifest": {
"message": "This page is controlled by a service worker, however no `start_url` was found because no manifest was fetched."
},
"lighthouse-core/audits/service-worker.js | explanationOutOfScope": {
"message": "This origin has one or more service workers, however the page ({pageUrl}) is not in scope."
},
"lighthouse-core/audits/service-worker.js | failureTitle": {
"message": "Does not register a service worker that controls page and `start_url`"
},
"lighthouse-core/audits/service-worker.js | title": {
"message": "Registers a service worker that controls page and `start_url`"
},
"lighthouse-core/audits/splash-screen.js | description": {
"message": "A themed splash screen ensures a high-quality experience when users launch your app from their homescreens. [Learn more](https://web.dev/splash-screen)."
},
"lighthouse-core/audits/splash-screen.js | failureTitle": {
"message": "Is not configured for a custom splash screen"
},
"lighthouse-core/audits/splash-screen.js | title": {
"message": "Configured for a custom splash screen"
},
"lighthouse-core/audits/themed-omnibox.js | description": {
"message": "The browser address bar can be themed to match your site. [Learn more](https://web.dev/themed-omnibox)."
},
"lighthouse-core/audits/themed-omnibox.js | failureTitle": {
"message": "Does not set a theme color for the address bar."
},
"lighthouse-core/audits/themed-omnibox.js | title": {
"message": "Sets a theme color for the address bar."
},
"lighthouse-core/audits/third-party-summary.js | columnBlockingTime": {
"message": "Main-Thread Blocking Time"
},
"lighthouse-core/audits/third-party-summary.js | columnThirdParty": {
"message": "Third-Party"
},
"lighthouse-core/audits/third-party-summary.js | description": {
"message": "Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. [Learn more](https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/loading-third-party-javascript/)."
},
"lighthouse-core/audits/third-party-summary.js | displayValue": {
"message": "Third-party code blocked the main thread for {timeInMs, number, milliseconds} ms"
},
"lighthouse-core/audits/third-party-summary.js | failureTitle": {
"message": "Reduce the impact of third-party code"
},
"lighthouse-core/audits/third-party-summary.js | title": {
"message": "Minimize third-party usage"
},
"lighthouse-core/audits/time-to-first-byte.js | description": {
"message": "Time To First Byte identifies the time at which your server sends a response. [Learn more](https://web.dev/time-to-first-byte)."
},
"lighthouse-core/audits/time-to-first-byte.js | displayValue": {
"message": "Root document took {timeInMs, number, milliseconds} ms"
},
"lighthouse-core/audits/time-to-first-byte.js | failureTitle": {
"message": "Reduce server response times (TTFB)"
},
"lighthouse-core/audits/time-to-first-byte.js | title": {
"message": "Server response times are low (TTFB)"
},
"lighthouse-core/audits/user-timings.js | columnDuration": {
"message": "Duration"
},
"lighthouse-core/audits/user-timings.js | columnStartTime": {
"message": "Start Time"
},
"lighthouse-core/audits/user-timings.js | columnType": {
"message": "Type"
},
"lighthouse-core/audits/user-timings.js | description": {
"message": "Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences. [Learn more](https://web.dev/user-timings)."
},
"lighthouse-core/audits/user-timings.js | displayValue": {
"message": "{itemCount, plural,\n =1 {1 user timing}\n other {# user timings}\n }"
},
"lighthouse-core/audits/user-timings.js | title": {
"message": "User Timing marks and measures"
},
"lighthouse-core/audits/uses-rel-preconnect.js | crossoriginWarning": {
"message": "A preconnect <link> was found for \"{securityOrigin}\" but was not used by the browser. Check that you are using the `crossorigin` attribute properly."
},
"lighthouse-core/audits/uses-rel-preconnect.js | description": {
"message": "Consider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. [Learn more](https://web.dev/uses-rel-preconnect)."
},
"lighthouse-core/audits/uses-rel-preconnect.js | title": {
"message": "Preconnect to required origins"
},
"lighthouse-core/audits/uses-rel-preload.js | crossoriginWarning": {
"message": "A preload <link> was found for \"{preloadURL}\" but was not used by the browser. Check that you are using the `crossorigin` attribute properly."
},
"lighthouse-core/audits/uses-rel-preload.js | description": {
"message": "Consider using `<link rel=preload>` to prioritize fetching resources that are currently requested later in page load. [Learn more](https://web.dev/uses-rel-preload)."
},
"lighthouse-core/audits/uses-rel-preload.js | title": {
"message": "Preload key requests"
},
"lighthouse-core/audits/viewport.js | description": {
"message": "Add a `<meta name=\"viewport\">` tag to optimize your app for mobile screens. [Learn more](https://web.dev/viewport)."
},
"lighthouse-core/audits/viewport.js | explanationNoTag": {
"message": "No `<meta name=\"viewport\">` tag found"
},
"lighthouse-core/audits/viewport.js | failureTitle": {
"message": "Does not have a `<meta name=\"viewport\">` tag with `width` or `initial-scale`"
},
"lighthouse-core/audits/viewport.js | title": {
"message": "Has a `<meta name=\"viewport\">` tag with `width` or `initial-scale`"
},
"lighthouse-core/audits/without-javascript.js | description": {
"message": "Your app should display some content when JavaScript is disabled, even if it's just a warning to the user that JavaScript is required to use the app. [Learn more](https://web.dev/without-javascript)."
},
"lighthouse-core/audits/without-javascript.js | explanation": {
"message": "The page body should render some content if its scripts are not available."
},
"lighthouse-core/audits/without-javascript.js | failureTitle": {
"message": "Does not provide fallback content when JavaScript is not available"
},
"lighthouse-core/audits/without-javascript.js | title": {
"message": "Contains some content when JavaScript is not available"
},
"lighthouse-core/audits/works-offline.js | description": {
"message": "If you're building a Progressive Web App, consider using a service worker so that your app can work offline. [Learn more](https://web.dev/works-offline)."
},
"lighthouse-core/audits/works-offline.js | failureTitle": {
"message": "Current page does not respond with a 200 when offline"
},
"lighthouse-core/audits/works-offline.js | title": {
"message": "Current page responds with a 200 when offline"
},
"lighthouse-core/audits/works-offline.js | warningNoLoad": {
"message": "The page may not be loading offline because your test URL ({requested}) was redirected to \"{final}\". Try testing the second URL directly."
},
"lighthouse-core/config/default-config.js | a11yAriaGroupDescription": {
"message": "These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader."
},
"lighthouse-core/config/default-config.js | a11yAriaGroupTitle": {
"message": "ARIA"
},
"lighthouse-core/config/default-config.js | a11yAudioVideoGroupDescription": {
"message": "These are opportunities to provide alternative content for audio and video. This may improve the experience for users with hearing or vision impairments."
},
"lighthouse-core/config/default-config.js | a11yAudioVideoGroupTitle": {
"message": "Audio and video"
},
"lighthouse-core/config/default-config.js | a11yBestPracticesGroupDescription": {
"message": "These items highlight common accessibility best practices."
},
"lighthouse-core/config/default-config.js | a11yBestPracticesGroupTitle": {
"message": "Best practices"
},
"lighthouse-core/config/default-config.js | a11yCategoryDescription": {
"message": "These checks highlight opportunities to [improve the accessibility of your web app](https://developers.google.com/web/fundamentals/accessibility). Only a subset of accessibility issues can be automatically detected so manual testing is also encouraged."
},
"lighthouse-core/config/default-config.js | a11yCategoryManualDescription": {
"message": "These items address areas which an automated testing tool cannot cover. Learn more in our guide on [conducting an accessibility review](https://developers.google.com/web/fundamentals/accessibility/how-to-review)."
},
"lighthouse-core/config/default-config.js | a11yCategoryTitle": {
"message": "Accessibility"
},
"lighthouse-core/config/default-config.js | a11yColorContrastGroupDescription": {
"message": "These are opportunities to improve the legibility of your content."
},
"lighthouse-core/config/default-config.js | a11yColorContrastGroupTitle": {
"message": "Contrast"
},
"lighthouse-core/config/default-config.js | a11yLanguageGroupDescription": {
"message": "These are opportunities to improve the interpretation of your content by users in different locales."
},
"lighthouse-core/config/default-config.js | a11yLanguageGroupTitle": {
"message": "Internationalization and localization"
},
"lighthouse-core/config/default-config.js | a11yNamesLabelsGroupDescription": {
"message": "These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader."
},
"lighthouse-core/config/default-config.js | a11yNamesLabelsGroupTitle": {
"message": "Names and labels"
},
"lighthouse-core/config/default-config.js | a11yNavigationGroupDescription": {
"message": "These are opportunities to improve keyboard navigation in your application."
},
"lighthouse-core/config/default-config.js | a11yNavigationGroupTitle": {
"message": "Navigation"
},
"lighthouse-core/config/default-config.js | a11yTablesListsVideoGroupDescription": {
"message": "These are opportunities to to improve the experience of reading tabular or list data using assistive technology, like a screen reader."
},
"lighthouse-core/config/default-config.js | a11yTablesListsVideoGroupTitle": {
"message": "Tables and lists"
},
"lighthouse-core/config/default-config.js | bestPracticesCategoryTitle": {
"message": "Best Practices"
},
"lighthouse-core/config/default-config.js | budgetsGroupDescription": {
"message": "Performance budgets set standards for the performance of your site."
},
"lighthouse-core/config/default-config.js | budgetsGroupTitle": {
"message": "Budgets"
},
"lighthouse-core/config/default-config.js | diagnosticsGroupDescription": {
"message": "More information about the performance of your application. These numbers don't [directly affect](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted) the Performance score."
},
"lighthouse-core/config/default-config.js | diagnosticsGroupTitle": {
"message": "Diagnostics"
},
"lighthouse-core/config/default-config.js | firstPaintImprovementsGroupDescription": {
"message": "The most critical aspect of performance is how quickly pixels are rendered onscreen. Key metrics: First Contentful Paint, First Meaningful Paint"
},
"lighthouse-core/config/default-config.js | firstPaintImprovementsGroupTitle": {
"message": "First Paint Improvements"
},
"lighthouse-core/config/default-config.js | loadOpportunitiesGroupDescription": {
"message": "These suggestions can help your page load faster. They don't [directly affect](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted) the Performance score."
},
"lighthouse-core/config/default-config.js | loadOpportunitiesGroupTitle": {
"message": "Opportunities"
},
"lighthouse-core/config/default-config.js | metricGroupTitle": {
"message": "Metrics"
},
"lighthouse-core/config/default-config.js | overallImprovementsGroupDescription": {
"message": "Enhance the overall loading experience, so the page is responsive and ready to use as soon as possible. Key metrics: Time to Interactive, Speed Index"
},
"lighthouse-core/config/default-config.js | overallImprovementsGroupTitle": {
"message": "Overall Improvements"
},
"lighthouse-core/config/default-config.js | performanceCategoryTitle": {
"message": "Performance"
},
"lighthouse-core/config/default-config.js | pwaCategoryDescription": {
"message": "These checks validate the aspects of a Progressive Web App. [Learn more](https://developers.google.com/web/progressive-web-apps/checklist)."
},
"lighthouse-core/config/default-config.js | pwaCategoryManualDescription": {
"message": "These checks are required by the baseline [PWA Checklist](https://developers.google.com/web/progressive-web-apps/checklist) but are not automatically checked by Lighthouse. They do not affect your score but it's important that you verify them manually."
},
"lighthouse-core/config/default-config.js | pwaCategoryTitle": {
"message": "Progressive Web App"
},
"lighthouse-core/config/default-config.js | pwaFastReliableGroupTitle": {
"message": "Fast and reliable"
},
"lighthouse-core/config/default-config.js | pwaInstallableGroupTitle": {
"message": "Installable"
},
"lighthouse-core/config/default-config.js | pwaOptimizedGroupTitle": {
"message": "PWA Optimized"
},
"lighthouse-core/config/default-config.js | seoCategoryDescription": {
"message": "These checks ensure that your page is optimized for search engine results ranking. There are additional factors Lighthouse does not check that may affect your search ranking. [Learn more](https://support.google.com/webmasters/answer/35769)."
},
"lighthouse-core/config/default-config.js | seoCategoryManualDescription": {
"message": "Run these additional validators on your site to check additional SEO best practices."
},
"lighthouse-core/config/default-config.js | seoCategoryTitle": {
"message": "SEO"
},
"lighthouse-core/config/default-config.js | seoContentGroupDescription": {
"message": "Format your HTML in a way that enables crawlers to better understand your app’s content."
},
"lighthouse-core/config/default-config.js | seoContentGroupTitle": {
"message": "Content Best Practices"
},
"lighthouse-core/config/default-config.js | seoCrawlingGroupDescription": {
"message": "To appear in search results, crawlers need access to your app."
},
"lighthouse-core/config/default-config.js | seoCrawlingGroupTitle": {
"message": "Crawling and Indexing"
},
"lighthouse-core/config/default-config.js | seoMobileGroupDescription": {
"message": "Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/)."
},
"lighthouse-core/config/default-config.js | seoMobileGroupTitle": {
"message": "Mobile Friendly"
},
"lighthouse-core/lib/i18n/i18n.js | columnCacheTTL": {
"message": "Cache TTL"
},
"lighthouse-core/lib/i18n/i18n.js | columnLocation": {
"message": "Location"
},
"lighthouse-core/lib/i18n/i18n.js | columnName": {
"message": "Name"
},
"lighthouse-core/lib/i18n/i18n.js | columnRequests": {
"message": "Requests"
},
"lighthouse-core/lib/i18n/i18n.js | columnResourceType": {
"message": "Resource Type"
},
"lighthouse-core/lib/i18n/i18n.js | columnSize": {
"message": "Size"
},
"lighthouse-core/lib/i18n/i18n.js | columnTimeSpent": {
"message": "Time Spent"
},
"lighthouse-core/lib/i18n/i18n.js | columnTransferSize": {
"message": "Transfer Size"
},
"lighthouse-core/lib/i18n/i18n.js | columnURL": {
"message": "URL"
},
"lighthouse-core/lib/i18n/i18n.js | columnWastedBytes": {
"message": "Potential Savings"
},
"lighthouse-core/lib/i18n/i18n.js | columnWastedMs": {
"message": "Potential Savings"
},
"lighthouse-core/lib/i18n/i18n.js | displayValueByteSavings": {
"message": "Potential savings of {wastedBytes, number, bytes} KB"
},
"lighthouse-core/lib/i18n/i18n.js | displayValueMsSavings": {
"message": "Potential savings of {wastedMs, number, milliseconds} ms"
},
"lighthouse-core/lib/i18n/i18n.js | documentResourceType": {
"message": "Document"
},
"lighthouse-core/lib/i18n/i18n.js | fontResourceType": {
"message": "Font"
},
"lighthouse-core/lib/i18n/i18n.js | imageResourceType": {
"message": "Image"
},
"lighthouse-core/lib/i18n/i18n.js | mediaResourceType": {
"message": "Media"
},
"lighthouse-core/lib/i18n/i18n.js | ms": {
"message": "{timeInMs, number, milliseconds} ms"
},
"lighthouse-core/lib/i18n/i18n.js | otherResourceType": {
"message": "Other"
},
"lighthouse-core/lib/i18n/i18n.js | scriptResourceType": {
"message": "Script"
},
"lighthouse-core/lib/i18n/i18n.js | seconds": {
"message": "{timeInMs, number, seconds} s"
},
"lighthouse-core/lib/i18n/i18n.js | stylesheetResourceType": {
"message": "Stylesheet"
},
"lighthouse-core/lib/i18n/i18n.js | thirdPartyResourceType": {
"message": "Third-party"
},
"lighthouse-core/lib/i18n/i18n.js | totalResourceType": {
"message": "Total"
},
"lighthouse-core/lib/lh-error.js | badTraceRecording": {
"message": "Something went wrong with recording the trace over your page load. Please run Lighthouse again. ({errorCode})"
},
"lighthouse-core/lib/lh-error.js | criTimeout": {
"message": "Timeout waiting for initial Debugger Protocol connection."
},
"lighthouse-core/lib/lh-error.js | didntCollectScreenshots": {
"message": "Chrome didn't collect any screenshots during the page load. Please make sure there is content visible on the page, and then try re-running Lighthouse. ({errorCode})"
},
"lighthouse-core/lib/lh-error.js | dnsFailure": {
"message": "DNS servers could not resolve the provided domain."
},
"lighthouse-core/lib/lh-error.js | erroredRequiredArtifact": {
"message": "Required {artifactName} gatherer encountered an error: {errorMessage}"
},
"lighthouse-core/lib/lh-error.js | internalChromeError": {
"message": "An internal Chrome error occurred. Please restart Chrome and try re-running Lighthouse."
},
"lighthouse-core/lib/lh-error.js | missingRequiredArtifact": {
"message": "Required {artifactName} gatherer did not run."
},
"lighthouse-core/lib/lh-error.js | pageLoadFailed": {
"message": "Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests."
},
"lighthouse-core/lib/lh-error.js | pageLoadFailedHung": {
"message": "Lighthouse was unable to reliably load the URL you requested because the page stopped responding."
},
"lighthouse-core/lib/lh-error.js | pageLoadFailedInsecure": {
"message": "The URL you have provided does not have a valid security certificate. {securityMessages}"
},
"lighthouse-core/lib/lh-error.js | pageLoadFailedInterstitial": {
"message": "Chrome prevented page load with an interstitial. Make sure you are testing the correct URL and that the server is properly responding to all requests."
},
"lighthouse-core/lib/lh-error.js | pageLoadFailedWithDetails": {
"message": "Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Details: {errorDetails})"
},
"lighthouse-core/lib/lh-error.js | pageLoadFailedWithStatusCode": {
"message": "Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Status code: {statusCode})"
},
"lighthouse-core/lib/lh-error.js | pageLoadTookTooLong": {
"message": "Your page took too long to load. Please follow the opportunities in the report to reduce your page load time, and then try re-running Lighthouse. ({errorCode})"
},
"lighthouse-core/lib/lh-error.js | protocolTimeout": {
"message": "Waiting for DevTools protocol response has exceeded the allotted time. (Method: {protocolMethod})"
},
"lighthouse-core/lib/lh-error.js | requestContentTimeout": {
"message": "Fetching resource content has exceeded the allotted time"
},
"lighthouse-core/lib/lh-error.js | urlInvalid": {
"message": "The URL you have provided appears to be invalid."
},
"lighthouse-core/report/html/renderer/util.js | auditGroupExpandTooltip": {
"message": "Show audits"
},
"lighthouse-core/report/html/renderer/util.js | crcInitialNavigation": {
"message": "Initial Navigation"
},
"lighthouse-core/report/html/renderer/util.js | crcLongestDurationLabel": {
"message": "Maximum critical path latency:"
},
"lighthouse-core/report/html/renderer/util.js | errorLabel": {
"message": "Error!"
},
"lighthouse-core/report/html/renderer/util.js | errorMissingAuditInfo": {
"message": "Report error: no audit information"
},
"lighthouse-core/report/html/renderer/util.js | labDataTitle": {
"message": "Lab Data"
},
"lighthouse-core/report/html/renderer/util.js | lsPerformanceCategoryDescription": {
"message": "[Lighthouse](https://developers.google.com/web/tools/lighthouse/) analysis of the current page on an emulated mobile network. Values are estimated and may vary."
},
"lighthouse-core/report/html/renderer/util.js | manualAuditsGroupTitle": {
"message": "Additional items to manually check"
},
"lighthouse-core/report/html/renderer/util.js | notApplicableAuditsGroupTitle": {
"message": "Not applicable"
},
"lighthouse-core/report/html/renderer/util.js | opportunityResourceColumnLabel": {
"message": "Opportunity"
},
"lighthouse-core/report/html/renderer/util.js | opportunitySavingsColumnLabel": {
"message": "Estimated Savings"
},
"lighthouse-core/report/html/renderer/util.js | passedAuditsGroupTitle": {
"message": "Passed audits"
},
"lighthouse-core/report/html/renderer/util.js | snippetCollapseButtonLabel": {
"message": "Collapse snippet"
},
"lighthouse-core/report/html/renderer/util.js | snippetExpandButtonLabel": {
"message": "Expand snippet"
},
"lighthouse-core/report/html/renderer/util.js | thirdPartyResourcesLabel": {
"message": "Show 3rd-party resources"
},
"lighthouse-core/report/html/renderer/util.js | toplevelWarningsMessage": {
"message": "There were issues affecting this run of Lighthouse:"
},
"lighthouse-core/report/html/renderer/util.js | varianceDisclaimer": {
"message": "Values are estimated and may vary. The performance score is [based only on these metrics](https://github.com/GoogleChrome/lighthouse/blob/d2ec9ffbb21de9ad1a0f86ed24575eda32c796f0/docs/scoring.md#how-are-the-scores-weighted)."
},
"lighthouse-core/report/html/renderer/util.js | warningAuditsGroupTitle": {
"message": "Passed audits but with warnings"
},
"lighthouse-core/report/html/renderer/util.js | warningHeader": {
"message": "Warnings: "
},
"stack-packs/packs/amp.js | efficient_animated_content": {
"message": "For animated content, use [amp-anim](https://amp.dev/documentation/components/amp-anim/) to minimize CPU usage while the content remains offscreen."
},
"stack-packs/packs/amp.js | offscreen_images": {
"message": "Ensure that you are you using valid `amp-img` tags for your images which automatically lazy-load outside the first viewport. [Learn more](https://amp.dev/documentation/guides-and-tutorials/develop/media_iframes_3p/?format=websites#images)."
},
"stack-packs/packs/amp.js | render_blocking_resources": {
"message": "Use tools such as [AMP Optimizer](https://github.com/ampproject/amp-toolbox/tree/master/packages/optimizer) to [server-side render AMP layouts](https://amp.dev/documentation/guides-and-tutorials/optimize-and-measure/server-side-rendering/)."
},
"stack-packs/packs/amp.js | unminified_css": {
"message": "Refer to the [AMP documentation](https://amp.dev/documentation/guides-and-tutorials/develop/style_and_layout/style_pages/) to ensure all your styles are supported."
},
"stack-packs/packs/amp.js | uses_responsive_images": {
"message": "The `amp-img` element supports the `srcset` attribute to specify which image assets to use based on the screen size. [Learn more](https://amp.dev/documentation/guides-and-tutorials/develop/style_and_layout/art_direction/)."
},
"stack-packs/packs/amp.js | uses_webp_images": {
"message": "Consider displaying all your `amp-img` components in WebP formats while specifying an appropriate fallback for other browsers. [Learn more](https://amp.dev/documentation/components/amp-img/#example:-specifying-a-fallback-image)."
},
"stack-packs/packs/angular.js | dom_size": {
"message": "Consider virtual scrolling with the Component Dev Kit (CDK) if very large lists are being rendered. [Learn more](https://web.dev/virtualize-lists-with-angular-cdk/)."
},
"stack-packs/packs/angular.js | total_byte_weight": {
"message": "Apply [route-level code-splitting](https://web.dev/route-level-code-splitting-in-angular/) to minimize the size of your JavaScript bundles. Also, consider precaching assets with the [Angular service worker](https://web.dev/precaching-with-the-angular-service-worker/)."
},
"stack-packs/packs/angular.js | unminified_warning": {
"message": "If you are using Angular CLI, ensure that builds are generated in production mode. [Learn more](https://angular.io/guide/deployment#enable-runtime-production-mode)."
},
"stack-packs/packs/angular.js | unused_javascript": {
"message": "If you are using Angular CLI, include source maps into your production build to inspect your bundles. [Learn more](https://angular.io/guide/deployment#inspect-the-bundles)."
},
"stack-packs/packs/angular.js | uses_rel_preload": {
"message": "Preload routes ahead of time to speed up navigation. [Learn more](https://web.dev/route-preloading-in-angular/)."
},
"stack-packs/packs/angular.js | uses_responsive_images": {
"message": "Consider using the `BreakpointObserver` utility in the Component Dev Kit (CDK) to manage image breakpoints. [Learn more](https://material.angular.io/cdk/layout/overview)."
},
"stack-packs/packs/magento.js | critical_request_chains": {
"message": "If you are not bundling your JavaScript assets, consider using [baler](https://github.com/magento/baler)."
},
"stack-packs/packs/magento.js | disable_bundling": {
"message": "Disable Magento's built-in [JavaScript bundling and minification](https://devdocs.magento.com/guides/v2.3/frontend-dev-guide/themes/js-bundling.html), and consider using [baler](https://github.com/magento/baler/) instead."
},
"stack-packs/packs/magento.js | font_display": {
"message": "Specify `@font-display` when [defining custom fonts](https://devdocs.magento.com/guides/v2.3/frontend-dev-guide/css-topics/using-fonts.html)."
},
"stack-packs/packs/magento.js | offscreen_images": {
"message": "Consider modifying your product and catalog templates to make use of the web platform's [lazy loading](https://web.dev/native-lazy-loading) feature."
},
"stack-packs/packs/magento.js | time_to_first_byte": {
"message": "Use Magento's [Varnish integration](https://devdocs.magento.com/guides/v2.3/config-guide/varnish/config-varnish.html)."
},
"stack-packs/packs/magento.js | unminified_css": {
"message": "Enable the \"Minify CSS Files\" option in your store's Developer settings. [Learn more](https://devdocs.magento.com/guides/v2.3/performance-best-practices/configuration.html?itm_source=devdocs&itm_medium=search_page&itm_campaign=federated_search&itm_term=minify%20css%20files)."
},
"stack-packs/packs/magento.js | unminified_javascript": {
"message": "Use [Terser](https://www.npmjs.com/package/terser) to minify all JavaScript assets outfrom from static content deployment, and disable the built-in minification feature."
},
"stack-packs/packs/magento.js | unused_javascript": {
"message": "Disable Magento's built-in [JavaScript bundling](https://devdocs.magento.com/guides/v2.3/frontend-dev-guide/themes/js-bundling.html)."
},
"stack-packs/packs/magento.js | uses_optimized_images": {
"message": "Consider searching the [Magento Marketplace](https://marketplace.magento.com/catalogsearch/result/?q=optimize%20image) for a variety of third party extensions to optimize images."
},
"stack-packs/packs/magento.js | uses_rel_preconnect": {
"message": "Preconnect or dns-prefetch resource hints can be added by [modifying a themes's layout](https://devdocs.magento.com/guides/v2.3/frontend-dev-guide/layouts/xml-manage.html)."
},
"stack-packs/packs/magento.js | uses_rel_preload": {
"message": "`<link rel=preload>` tags can be added by [modifying a themes's layout](https://devdocs.magento.com/guides/v2.3/frontend-dev-guide/layouts/xml-manage.html)."
},
"stack-packs/packs/magento.js | uses_webp_images": {
"message": "Consider searching the [Magento Marketplace](https://marketplace.magento.com/catalogsearch/result/?q=webp) for a variety of third-party extensions to leverage newer image formats."
},
"stack-packs/packs/react.js | dom_size": {
"message": "Consider using a “windowing” library like `react-window` to minimize the number of DOM nodes created if you are rendering many repeated elements on the page. [Learn more](https://web.dev/virtualize-long-lists-react-window/). Also, minimize unecessary re-renders using [shouldComponentUpdate](https://reactjs.org/docs/optimizing-performance.html#shouldcomponentupdate-in-action), [PureComponent](https://reactjs.org/docs/react-api.html#reactpurecomponent), or [React.memo](https://reactjs.org/docs/react-api.html#reactmemo) and [skip effects](https://reactjs.org/docs/hooks-effect.html#tip-optimizing-performance-by-skipping-effects) only until certain dependencies have changed if you are using the Effect hook to improve runtime performance."
},
"stack-packs/packs/react.js | redirects": {
"message": "If you are using React Router, minimize usage of the `<Redirect>` component for [route navigations](https://reacttraining.com/react-router/web/api/Redirect)."
},
"stack-packs/packs/react.js | time_to_first_byte": {
"message": "If you are server-side rendering any React components, consider using `renderToNodeStream()` or `renderToStaticNodeStream()` to allow the client to receive and hydrate different parts of the markup instead of all at once. [Learn more](https://reactjs.org/docs/react-dom-server.html#rendertonodestream)."
},
"stack-packs/packs/react.js | unminified_css": {
"message": "If your build system minifies your CSS files automatically, ensure that you are deploying the production build of your application. You can check this with the React Developer Tools extension. [Learn more](https://reactjs.org/docs/optimizing-performance.html#use-the-production-build)."
},
"stack-packs/packs/react.js | unminified_javascript": {
"message": "If your build system minifies your JS files automatically, ensure that you are deploying the production build of your application. You can check this with the React Developer Tools extension. [Learn more](https://reactjs.org/docs/optimizing-performance.html#use-the-production-build)."
},
"stack-packs/packs/react.js | unused_javascript": {
"message": "If you are not server-side rendering, [split your JavaScript bundles](https://web.dev/code-splitting-suspense/) with `React.lazy()`. Otherwise, code-split using a third-party library such as [loadable-components](https://www.smooth-code.com/open-source/loadable-components/docs/getting-started/)."
},
"stack-packs/packs/react.js | user_timings": {
"message": "Use the React DevTools Profiler, which makes use of the Profiler API, to measure the rendering performance of your components. [Learn more.](https://reactjs.org/blog/2018/09/10/introducing-the-react-profiler.html)"
},
"stack-packs/packs/wordpress.js | efficient_animated_content": {
"message": "Consider uploading your GIF to a service which will make it available to embed as an HTML5 video."
},
"stack-packs/packs/wordpress.js | offscreen_images": {
"message": "Install a [lazy-load WordPress plugin](https://wordpress.org/plugins/search/lazy+load/) that provides the ability to defer any offscreen images, or switch to a theme that provides that functionality. Also consider using [the AMP plugin](https://wordpress.org/plugins/amp/)."
},
"stack-packs/packs/wordpress.js | render_blocking_resources": {
"message": "There are a number of WordPress plugins that can help you [inline critical assets](https://wordpress.org/plugins/search/critical+css/) or [defer less important resources](https://wordpress.org/plugins/search/defer+css+javascript/). Beware that optimizations provided by these plugins may break features of your theme or plugins, so you will likely need to make code changes."
},
"stack-packs/packs/wordpress.js | time_to_first_byte": {
"message": "Themes, plugins, and server specifications all contribute to server response time. Consider finding a more optimized theme, carefully selecting an optimization plugin, and/or upgrading your server."
},
"stack-packs/packs/wordpress.js | total_byte_weight": {
"message": "Consider showing excerpts in your post lists (e.g. via the more tag), reducing the number of posts shown on a given page, breaking your long posts into multiple pages, or using a plugin to lazy-load comments."
},
"stack-packs/packs/wordpress.js | unminified_css": {
"message": "A number of [WordPress plugins](https://wordpress.org/plugins/search/minify+css/) can speed up your site by concatenating, minifying, and compressing your styles. You may also want to use a build process to do this minification up-front if possible."
},
"stack-packs/packs/wordpress.js | unminified_javascript": {
"message": "A number of [WordPress plugins](https://wordpress.org/plugins/search/minify+javascript/) can speed up your site by concatenating, minifying, and compressing your scripts. You may also want to use a build process to do this minification up front if possible."
},
"stack-packs/packs/wordpress.js | unused_css_rules": {
"message": "Consider reducing, or switching, the number of [WordPress plugins](https://wordpress.org/plugins/) loading unused CSS in your page. To identify plugins that are adding extraneous CSS, try running [code coverage](https://developers.google.com/web/updates/2017/04/devtools-release-notes#coverage) in Chrome DevTools. You can identify the theme/plugin responsible from the URL of the stylesheet. Look out for plugins that have many stylesheets in the list which have a lot of red in code coverage. A plugin should only enqueue a stylesheet if it is actually used on the page."
},
"stack-packs/packs/wordpress.js | unused_javascript": {
"message": "Consider reducing, or switching, the number of [WordPress plugins](https://wordpress.org/plugins/) loading unused JavaScript in your page. To identify plugins that are adding extraneous JS, try running [code coverage](https://developers.google.com/web/updates/2017/04/devtools-release-notes#coverage) in Chrome DevTools. You can identify the theme/plugin responsible from the URL of the script. Look out for plugins that have many scripts in the list which have a lot of red in code coverage. A plugin should only enqueue a script if it is actually used on the page."
},
"stack-packs/packs/wordpress.js | uses_long_cache_ttl": {
"message": "Read about [Browser Caching in WordPress](https://codex.wordpress.org/WordPress_Optimization#Browser_Caching)."
},
"stack-packs/packs/wordpress.js | uses_optimized_images": {
"message": "Consider using an [image optimization WordPress plugin](https://wordpress.org/plugins/search/optimize+images/) that compresses your images while retaining quality."
},
"stack-packs/packs/wordpress.js | uses_responsive_images": {
"message": "Upload images directly through the [media library](https://codex.wordpress.org/Media_Library_Screen) to ensure that the required image sizes are available, and then insert them from the media library or use the image widget to ensure the optimal image sizes are used (including those for the responsive breakpoints). Avoid using `Full Size` images unless the dimensions are adequate for their usage. [Learn More](https://codex.wordpress.org/Inserting_Images_into_Posts_and_Pages#Image_Size)."
},
"stack-packs/packs/wordpress.js | uses_text_compression": {
"message": "You can enable text compression in your web server configuration."
},
"stack-packs/packs/wordpress.js | uses_webp_images": {
"message": "Consider using a [plugin](https://wordpress.org/plugins/search/convert+webp/) or service that will automatically convert your uploaded images to the optimal formats."
}
}