Lighthouse Desktop
· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.Detailed Report
Audit breakdown by category with detailed findings.
Performance
Insights
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Performance issues directly impact user engagement and conversion rates.
Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling
Performance issues directly impact user engagement and conversion rates.
3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
body.jar > div#google_image_div > a#aw0 > img.img_ad body.jar > div#google_image_div > a#aw0 > img.img_ad | tpc.googlesyndication.com/simgad/7674378150512819054 | 104.6 KiB | 92.4 KiB |
body.jar > div#google_image_div > a#aw0 > img.img_ad body.jar > div#google_image_div > a#aw0 > img.img_ad | tpc.googlesyndication.com/simgad/6191022021048474370 | 102.8 KiB | 90.5 KiB |
div#hot-network-questions > ul > li > div.favicon div#hot-network-questions > ul > li > div.favicon | askubuntu.com/Content/Img/favicons-sprite16.png?v=7c49858b1c47 | 87.4 KiB | 68.8 KiB |
body.jar > div#google_image_div > a#aw0 > img.img_ad body.jar > div#google_image_div > a#aw0 > img.img_ad | tpc.googlesyndication.com/simgad/6815349005859657344 | 64.6 KiB | 53.9 KiB |
Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
Performance issues directly impact user engagement and conversion rates.
Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.
Performance issues directly impact user engagement and conversion rates.
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
Performance issues directly impact user engagement and conversion rates.
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.
Performance issues directly impact user engagement and conversion rates.
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.
Performance issues directly impact user engagement and conversion rates.
Diagnostics
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| askubuntu.com/Content/Shared/stacks.css?v=b2264ccf0463 | 110.1 KiB | 104.5 KiB |
| askubuntu.com/Content/Sites/askubuntu/primary.css?v=3dc445ae4447 | 69.5 KiB | 65.5 KiB |
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31... | 187.7 KiB | 95.9 KiB |
| /prebid/9.30.0.js?fork=1&v=bf6611fc0393cee6578a23c9bb5689... | 130.6 KiB | 93.7 KiB |
| www.googletagmanager.com/gtag/js?id=G-S812YQPLT2 | 154.3 KiB | 62.1 KiB |
| raven-static.aditude.io/prod/1.19.14-y0ptsc/raven.js | 106.8 KiB | 61.4 KiB |
| /stackoverflow-M6HzSe6yue/mapping.base/prebid-wrapper.js | 83.6 KiB | 31.4 KiB |
| /pagead/managed/js/activeview/current/ufs_web_display.js | 73.1 KiB | 31.0 KiB |
| /pagead/managed/js/activeview/current/ufs_web_display.js | 73.1 KiB | 31.0 KiB |
| /pagead/managed/js/activeview/current/ufs_web_display.js | 73.1 KiB | 31.0 KiB |
| securepubads.g.doubleclick.net/tag/js/gpt.js | 33.8 KiB | 24.1 KiB |
| ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js | 29.8 KiB | 20.4 KiB |
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
Ask Ubuntu header.site-header > div.site-header--container > a.site-header--link > img.h-auto | askubuntu.com/Content/Sites/askubuntu/Img/logo.svg?v=472cf2768bba |
More information about the performance of your application. These numbers don't directly affect the Performance score.
Accessibility
These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.
ARIA
Some ARIA roles have required attributes that describe the state of the element to screen readers. Learn more about roles and required attributes.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Search div.s-topbar--container > form#search > div.s-topbar--searchbar--input-group > input.s-input |
Using ARIA attributes in roles where they are prohibited can mean that important information is not communicated to users of assistive technologies. Learn more about prohibited ARIA roles.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Close body.home-page > div#pb-anchor--wrapper > div#pb-anchor--wrapper-inner > div.tude-anchor-close-button |
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.
Contrast
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Try for free ol.nav-links > li.js-freemium-cta > div.px8 > a.w100 |
Ask Question div#mainbar > div.d-flex > div.ml12 > a.ws-nowrap |
more tags div#mainbar > div.d-flex > div.flex--item > a.more-tags |
32k div#question-summary-1514281 > div.s-post-summary--stats > div.s-post-summary--stats-item > span.s-post-summary--stats-item-number |
views div#question-summary-1514281 > div.s-post-summary--stats > div.s-post-summary--stats-item > span.s-post-summary--stats-item-unit |
mchid div.s-user-card--info > div.s-user-card--link > a.flex--item > span |
13k div#question-summary-1341389 > div.s-post-summary--stats > div.s-post-summary--stats-item > span.s-post-summary--stats-item-number |
views div#question-summary-1341389 > div.s-post-summary--stats > div.s-post-summary--stats-item > span.s-post-summary--stats-item-unit |
Community div.s-user-card--info > div.s-user-card--link > a.flex--item > span |
Kratz div.s-user-card--info > div.s-user-card--link > a.flex--item > span |
guiverc div.s-user-card--info > div.s-user-card--link > a.flex--item > span |
2k div#question-summary-20178 > div.s-post-summary--stats > div.s-post-summary--stats-item > span.s-post-summary--stats-item-number |
views div#question-summary-20178 > div.s-post-summary--stats > div.s-post-summary--stats-item > span.s-post-summary--stats-item-unit |
pee-j div.s-user-card--info > div.s-user-card--link > a.flex--item > span |
DJCrashdummy div.s-user-card--info > div.s-user-card--link > a.flex--item > span |
4k div#question-summary-1526455 > div.s-post-summary--stats > div.s-post-summary--stats-item > span.s-post-summary--stats-item-number |
views div#question-summary-1526455 > div.s-post-summary--stats > div.s-post-summary--stats-item > span.s-post-summary--stats-item-unit |
woodz div.s-user-card--info > div.s-user-card--link > a.flex--item > span |
kyodake div.s-user-card--info > div.s-user-card--link > a.flex--item > span |
David DE div.s-user-card--info > div.s-user-card--link > a.flex--item > span |
David DE div.s-user-card--info > div.s-user-card--link > a.flex--item > span |
David DE div.s-user-card--info > div.s-user-card--link > a.flex--item > span |
kyodake div.s-user-card--info > div.s-user-card--link > a.flex--item > span |
user222789 div.s-user-card--info > div.s-user-card--link > a.flex--item > span |
15k div#question-summary-824251 > div.s-post-summary--stats > div.s-post-summary--stats-item > span.s-post-summary--stats-item-number |
views div#question-summary-824251 > div.s-post-summary--stats > div.s-post-summary--stats-item > span.s-post-summary--stats-item-unit |
Community div.s-user-card--info > div.s-user-card--link > a.flex--item > span |
Browse more Questions div#content > div.inner-content > div#mainbar > a.s-btn |
Report this ad div#sidebar > div.js-zone-container > div.js-report-ad-button-container > button.js-report-ad |
Report this ad div#sidebar > div.js-zone-container > div.js-report-ad-button-container > button.js-report-ad |
more hot questions div.inner-content > div#sidebar > div#hot-network-questions > a.show-more |
Recent questions feed div.inner-content > div#sidebar > div#feed-link > a |
Report this ad div#pb-anchor--wrapper > div#pb-anchor--wrapper-inner > div.mobile-anchor-ad-report-button-container > button.js-report-ad |
These are opportunities to improve the legibility of your content.
Navigation
Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Ubuntu 24.04 APT - Specify Architecture Using .sources Files div > div#question-summary-1514281 > div.s-post-summary--content > h3.s-post-summary--content-title |
These are opportunities to improve keyboard navigation in your application.
Names and labels
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 how to make links accessible.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
body.home-page > header.s-topbar > div.s-topbar--container > a.s-topbar--logo body.home-page > header.s-topbar > div.s-topbar--container > a.s-topbar--logo |
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.
Best practices
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
html.html__responsive html.html__responsive |
These items highlight common accessibility best practices.
Best Practices
General
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Performance issues directly impact user engagement and conversion rates.
| Deprecation / Warning | Source |
|---|---|
| SharedStorage | |
| StorageType.persistent is deprecated. Please use standardized navigator.storage instead. | |
| Fledge |
Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit
Performance issues directly impact user engagement and conversion rates.
| Source | Description |
|---|---|
Failed to load resource: the server responded with a status of 403 () | |
Failed to load resource: the server responded with a status of 403 () | |
Failed to load resource: the server responded with a status of 403 () | |
Failed to load resource: the server responded with a status of 403 () | |
Failed to load resource: the server responded with a status of 403 () | |
Failed to load resource: the server responded with a status of 403 () | |
Failed to load resource: the server responded with a status of 403 () | |
Failed to load resource: the server responded with a status of 403 () | |
Failed to load resource: the server responded with a status of 403 () | |
Failed to load resource: the server responded with a status of 403 () | |
Refused to execute script from 'https://askubuntu.com/Content/Js/explore-qlist.en.js?v=ee2a4f8c3992' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. | |
Refused to execute script from 'https://askubuntu.com/Content/Js/full-anon.en.js?v=037e97b07fca' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. | |
askubuntu.com/ line 2516, col 0 | Refused to execute script from 'https://askubuntu.com/Content/Js/islands/one-tap.en.js?v=102f0378a2cf' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. |
askubuntu.com/ line 2516, col 0 | Refused to execute script from 'https://askubuntu.com/Content/Js/islands/signup-modal.en.js?v=f64ec881ea96' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. |
askubuntu.com/ line 2516, col 0 | Refused to execute script from 'https://askubuntu.com/Content/Js/sprinkles/cookie-consent.en.js?v=7ee6963139c5' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. |
askubuntu.com/ line 2516, col 0 | Refused to execute script from 'https://askubuntu.com/Content/Js/sprinkles/left-nav-events.en.js?v=2ac13fd60bf6' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. |
askubuntu.com/ line 2516, col 0 | Refused to execute script from 'https://askubuntu.com/Content/Js/third-party/npm/@stackoverflow/stacks/dist/js/stacks.min.js?v=c7bcc7a1b4fd' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. |
askubuntu.com/ line 2516, col 0 | Refused to execute script from 'https://askubuntu.com/Content/Js/webpack-chunks/9366.en.js?v=c8d4e4e64bf3' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. |
askubuntu.com/ line 2516, col 0 | Refused to execute script from 'https://askubuntu.com/Content/Js/webpack-chunks/stacks-svelte.en.js?v=297d3b9a88f6' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. |
askubuntu.com/ line 2516, col 0 | Refused to execute script from 'https://askubuntu.com/Content/Js/webpack-chunks/svelte.en.js?v=f773033c4e0b' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. |
askubuntu.com/ line 2516, col 0 | Refused to execute script from 'https://askubuntu.com/Content/Js/webpack-chunks/svelte.en.js?v=f773033c4e0b' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. |
SEO
These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.
Content Best Practices
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
Performance issues directly impact user engagement and conversion rates.
| Link destination | Link Text |
|---|---|
| /internal/?utm_medium=referral&utm_source=askubuntu-commu... | Learn more |
| /internal/?utm_medium=referral&utm_source=askubuntu-commu... | Learn more |
Format your HTML in a way that enables crawlers to better understand your app’s content.