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Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
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Detailed Report

Audit breakdown by category with detailed findings.

35

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

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

Why this matters

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:102.929 source:map[column:285 line:3970 type:source-location url:https://www.domaintools.com/ urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:248.149 source:map[type:text value:[unattributed]]] map[reflowTime:2.284 source:map[column:4560 line:12 type:source-location url:https://cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js urlProvider:network]] map[reflowTime:2.967 source:map[column:10280 line:12 type:source-location url:https://cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js urlProvider:network]] map[reflowTime:55.649 source:map[column:13599 line:9 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/ScrollTrigger.min.js urlProvider:network]] map[reflowTime:7.939 source:map[column:53 line:2835 type:source-location url:https://www.domaintools.com/ urlProvider:network]] map[reflowTime:4.754 source:map[column:68469 line:9 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/gsap.min.js urlProvider:network]] map[reflowTime:3.629 source:map[column:30 line:2975 type:source-location url:https://www.domaintools.com/ urlProvider:network]] map[reflowTime:3.529 source:map[column:15 line:3919 type:source-location url:https://www.domaintools.com/ urlProvider:network]] map[reflowTime:3.557 source:map[column:1945 line:3970 type:source-location url:https://www.domaintools.com/ urlProvider:network]] map[reflowTime:4.298 source:map[column:52520 line:1 type:source-location url:https://d3e54v103j8qbb.cloudfront.net/js/jquery-3.5.1.min.dc5e7f18c8.js?site=6914bc46af7a937a5c07ee9e urlProvider:network]] map[reflowTime:0.446 source:map[column:52578 line:1 type:source-location url:https://d3e54v103j8qbb.cloudfront.net/js/jquery-3.5.1.min.dc5e7f18c8.js?site=6914bc46af7a937a5c07ee9e urlProvider:network]] map[reflowTime:0.431 source:map[column:52642 line:1 type:source-location url:https://d3e54v103j8qbb.cloudfront.net/js/jquery-3.5.1.min.dc5e7f18c8.js?site=6914bc46af7a937a5c07ee9e urlProvider:network]] map[reflowTime:23.576 source:map[column:51866 line:1 type:source-location url:https://d3e54v103j8qbb.cloudfront.net/js/jquery-3.5.1.min.dc5e7f18c8.js?site=6914bc46af7a937a5c07ee9e urlProvider:network]] map[reflowTime:3.898 source:map[column:53473 line:1 type:source-location url:https://d3e54v103j8qbb.cloudfront.net/js/jquery-3.5.1.min.dc5e7f18c8.js?site=6914bc46af7a937a5c07ee9e urlProvider:network]] map[reflowTime:2.919 source:map[column:81423 line:1 type:source-location url:https://d3e54v103j8qbb.cloudfront.net/js/jquery-3.5.1.min.dc5e7f18c8.js?site=6914bc46af7a937a5c07ee9e urlProvider:network]] map[reflowTime:6.564 source:map[column:51844 line:1 type:source-location url:https://d3e54v103j8qbb.cloudfront.net/js/jquery-3.5.1.min.dc5e7f18c8.js?site=6914bc46af7a937a5c07ee9e urlProvider:network]] map[reflowTime:47.365 source:map[column:19738 line:1 type:source-location url:https://cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/src-46THOPZP.js urlProvider:network]] map[reflowTime:55.337 source:map[column:23533 line:0 type:source-location url:https://cdn-cookieyes.com/client_data/1b6a99e4db412f19b93aa6c6/banner.js urlProvider:network]] map[reflowTime:3.824 source:map[column:24415 line:0 type:source-location url:https://cdn-cookieyes.com/client_data/1b6a99e4db412f19b93aa6c6/banner.js urlProvider:network]] map[reflowTime:0.608 source:map[column:330 line:3969 type:source-location url:https://www.domaintools.com/ urlProvider:network]] map[reflowTime:83.433 source:map[column:886 line:3969 type:source-location url:https://www.domaintools.com/ urlProvider:network]] map[reflowTime:31.386 source:map[column:332274 line:0 type:source-location url:https://acsbapp.com/apps/app/dist/js/app.js urlProvider:network]] map[reflowTime:66.933 source:map[column:341208 line:0 type:source-location url:https://acsbapp.com/apps/app/dist/js/app.js urlProvider:network]]]

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
ajax.googleapis.com/ajax/libs/webfont/1.6.26/webfont.js5.9 KiB757 ms
/6914bc46af7a937a5c07ee9e/css/dt-web-new.shared.1e36626e3...44.1 KiB1.3 s

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
info.domaintools.com/js/forms2/js/forms2.min.js14400.0 s67.5 KiB
cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js604800.0 s43.7 KiB
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/src-46THOPZP.js604800.0 s32.9 KiB
trk.techtarget.com/tracking.js1200.0 s1.5 KiB
vz-e0a99e60-765.b-cdn.net/3f1e5b5c-8e79-45a2-95f2-b3bdfe1114f1/360p/video.m3u830.0 s1.3 KiB
vz-e0a99e60-765.b-cdn.net/3f1e5b5c-8e79-45a2-95f2-b3bdfe1114f1/240p/video.m3u830.0 s1.3 KiB
vz-e0a99e60-765.b-cdn.net/3f1e5b5c-8e79-45a2-95f2-b3bdfe1114f1/720p/video.m3u830.0 s1.3 KiB
vz-e0a99e60-765.b-cdn.net/3f1e5b5c-8e79-45a2-95f2-b3bdfe1114f1/1080p/video.m3u830.0 s1.3 KiB
munchkin.marketo.net/munchkin.js0.0 ms1.2 KiB
vz-e0a99e60-765.b-cdn.net/3f1e5b5c-8e79-45a2-95f2-b3bdfe1114f1/playlist.m3u830.0 s1.2 KiB
cdn-cookieyes.com/assets/images/poweredbtcky.svg36000.0 s1.5 KiB
cdn-cookieyes.com/assets/images/revisit.svg36000.0 s1.2 KiB
cdn-cookieyes.com/assets/images/close.svg36000.0 s788 B
cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.css604800.0 s3.4 KiB
challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/cmg/10.0 ms208 B
cdn.jsdelivr.net/npm/@finsweet/attributes@2/attributes.js604800.0 s1.8 KiB
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-ZZRTGM4V.js604800.0 s1.3 KiB
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-ADKL4AJZ.js604800.0 s1.2 KiB
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-REJ3R5JH.js604800.0 s1.2 KiB
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-UAA7M346.js604800.0 s1007 B
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-VDEO3AAR.js604800.0 s815 B
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-K46K3RI5.js604800.0 s714 B
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-N2ZCN6XY.js604800.0 s712 B
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-T2PNG2TC.js604800.0 s700 B
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-XRTLPMPO.js604800.0 s641 B
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-WL5KIXHF.js604800.0 s609 B
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-7CAOOJVW.js604800.0 s585 B
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-GGDEANQW.js604800.0 s567 B
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-WIALCYDY.js604800.0 s491 B
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-J3PPETVR.js604800.0 s482 B
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-WO4GQJHX.js604800.0 s482 B
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-L4B2V5MO.js604800.0 s432 B
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-CB6LZ537.js604800.0 s350 B
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-OF4NI3Y7.js604800.0 s259 B

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLEst Savings
/s/dmsans/v17/rP2Yp2ywxg089UriI5-g4vlH9VoD8Cmcqbu0-K6z9mX...15 ms
fonts.gstatic.com/s/dmmono/v16/aFTR7PB1QTsUX8KYvumzEYOtbYf-Vlg.woff215 ms
fonts.gstatic.com/s/dmmono/v16/aFTR7PB1QTsUX8KYvrGyEYOtbYf-Vlg.woff210 ms
fonts.gstatic.com/s/dmmono/v16/aFTU7PB1QTsUX8KYthqQBK6PYK0.woff210 ms

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 948 ms
URLTime Spent
domaintools.com/948 ms
www.domaintools.com/0.0 ms

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 190 ms 31.0 KiB
URLTransfer SizeEst Savings
/6914bc46af7a937a5c07ee9e/css/dt-web-new.shared.1e36626e3...43.6 KiB31.0 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
www.domaintools.com/3.1 s338 ms31 ms
cdn.jsdelivr.net/npm/gsap@3.13.0/dist/ScrollTrigger.min.js3.1 s251 ms7.3 ms
acsbapp.com/apps/app/dist/js/app.js1.9 s1.0 s500 ms
Unattributable1.8 s193 ms0.0 ms
/cdn/67ba293a-0ffa-48ae-b42f-0705d42fefeb/home-rive.min.js1.1 s1.1 s1.0 ms
unpkg.com/@rive-app/canvas1.0 s961 ms53 ms
www.googletagmanager.com/gtm.js?id=GTM-5P2JCN665 ms545 ms98 ms
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/chunk-ADKL4AJZ.js483 ms252 ms0.1 ms
cdn.jsdelivr.net/npm/@finsweet/attributes@2/dist/src-46THOPZP.js464 ms226 ms1.1 ms
/js/jquery-3.5.1.min.dc5e7f18c8.js?site=6914bc46af7a937a5...369 ms180 ms16 ms
cdn-cookieyes.com/client_data/1b6a99e4db412f19b93aa6c6/banner.js358 ms101 ms4.6 ms
cdn.jsdelivr.net/npm/gsap@3.13.0/dist/gsap.min.js275 ms70 ms13 ms
info.domaintools.com/js/forms2/js/forms2.min.js195 ms105 ms41 ms
cdn.jsdelivr.net/npm/hls.js@1.6.11143 ms52 ms91 ms
cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js113 ms24 ms40 ms
/6914bc46af7a937a5c07ee9e/js/dt-web-new.df241121.3eee4494...97 ms80 ms2.3 ms
challenges.cloudflare.com/turnstile/v0/api.js82 ms65 ms8.9 ms
cdn-cookieyes.com/client_data/1b6a99e4db412f19b93aa6c6/script.js80 ms63 ms14 ms
ajax.googleapis.com/ajax/libs/webfont/1.6.26/webfont.js60 ms46 ms10 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation5.7 s
Other4.1 s
Style & Layout3.8 s
Script Parsing & Compilation948 ms
Parse HTML & CSS490 ms
Rendering456 ms
Garbage Collection165 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
Pages that use WebXR are not currently eligible for back/forward cache.Actionable

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 27.5 KiB
URLTransfer SizeEst Savings
unpkg.com/@rive-app/canvas66.0 KiB27.5 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 556.9 KiB
URLTransfer SizeEst Savings
cdn.jsdelivr.net/npm/hls.js@1.6.11157.3 KiB142.8 KiB
acsbapp.com/apps/app/dist/js/app.js216.8 KiB126.4 KiB
acsbapp.com/apps/app/dist/js/app.js216.8 KiB114.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-5P2JCN159.8 KiB66.6 KiB
info.domaintools.com/js/forms2/js/forms2.min.js67.0 KiB51.9 KiB
cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js43.6 KiB28.9 KiB
unpkg.com/@rive-app/canvas66.0 KiB26.2 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer Size
unpkg.com/@rive-app/canvas@2.37.3/rive.wasm658.3 KiB
vz-e0a99e60-765.b-cdn.net/3f1e5b5c-8e79-45a2-95f2-b3bdfe1114f1/720p/video2.ts471.3 KiB
/cdn-cgi/challenge-platform/h/b/flow/ov1/1903685616:17767...257.2 KiB
acsbapp.com/apps/app/dist/js/app.js221.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-5P2JCN160.1 KiB
cdn.jsdelivr.net/npm/hls.js@1.6.11157.7 KiB
vz-e0a99e60-765.b-cdn.net/3f1e5b5c-8e79-45a2-95f2-b3bdfe1114f1/360p/video1.ts148.3 KiB
/cdn-cgi/challenge-platform/h/b/turnstile/f/ov2/av0/rch/m...97.3 KiB
vz-e0a99e60-765.b-cdn.net/3f1e5b5c-8e79-45a2-95f2-b3bdfe1114f1/240p/video0.ts83.1 KiB
www.domaintools.com/?41d89e31_page=273.8 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
div.nav_contain > a.nav_logo_wrap > div.max-width-full > img.logo div.nav_contain > a.nav_logo_wrap > div.max-width-full > img.logo
/6914bc46af7a937a5c07ee9e/692d70a6f42f332db0abf38e_dm-too...
Laptop screen showing DomainTools domain profile with a risk score of 70 and ov… div.hero_contain > div.grid-container > div.hero_img-wrap > img.hero_img-visual
/6914bc46af7a937a5c07ee9e/695289dc6833503069580371_dr-hom...
Anomali Logo div.cms-integrations_item > div.integrations-card > div.integrations-img_wrap > img.integrations-img
Cortex XSOAR Logo div.cms-integrations_item > div.integrations-card > div.integrations-img_wrap > img.integrations-img
div.cms-integrations_item > div.integrations-card > div.integrations-img_wrap > img.integrations-img div.cms-integrations_item > div.integrations-card > div.integrations-img_wrap > img.integrations-img
CrowdStrike Logo div.cms-integrations_item > div.integrations-card > div.integrations-img_wrap > img.integrations-img

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Layout shift culprits
●Optimize DOM size
●Improve image delivery
●LCP breakdown
●LCP request discovery
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Avoid long main-thread tasks 20 long tasks found
●Network Requests
●Network Round Trip Times 90 ms
●Server Backend Latencies 270 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 50 ms
●Avoid large layout shifts 1 layout shift found
○INP breakdown
○User Timing marks and measures
○Avoid non-composited animations
85

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.

Names and labels

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 how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.button_arrow_wrap > div.button_arrow_element > div.g_clickable_wrap > button.g_clickable_btn div.button_arrow_wrap > div.button_arrow_element > div.g_clickable_wrap > button.g_clickable_btn
div.slider_button_layout > div.button_arrow_wrap > div.g_clickable_wrap > button.g_clickable_btn div.slider_button_layout > div.button_arrow_wrap > div.g_clickable_wrap > button.g_clickable_btn

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.g_btn_group > div.g_button_wrap > div.g_clickable_wrap > a.g_clickable_link div.g_btn_group > div.g_button_wrap > div.g_clickable_wrap > a.g_clickable_link

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.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Reject All div.cky-notice > div.cky-notice-group > div.cky-notice-btn-wrapper > button.cky-btn
Accept All div.cky-notice > div.cky-notice-group > div.cky-notice-btn-wrapper > button.cky-btn

These are opportunities to improve the legibility of your content.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Go to slide 1 div.slider_wrap > div.slider_controls > div.slider_bullet_list > button.slider_bullet_item
Go to slide 2 div.slider_wrap > div.slider_controls > div.slider_bullet_list > button.slider_bullet_item
Go to slide 3 div.slider_wrap > div.slider_controls > div.slider_bullet_list > button.slider_bullet_item
Go to slide 4 div.slider_wrap > div.slider_controls > div.slider_bullet_list > button.slider_bullet_item

These items highlight common accessibility best practices.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Load More div.integrations_content > div.cms-integrations > div.w-pagination-wrapper > a.w-pagination-next
Reseller Partner div.footer_group_wrap > div.footer_group_list > div.footer_group_item > a.footer_link_wrap
Events div.footer_group_wrap > div.footer_group_list > div.footer_group_item > a.footer_link_wrap
Careers div.footer_group_wrap > div.footer_group_list > div.footer_group_item > a.footer_link_wrap
○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
●`[role]`s are contained by their required parent element
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Image elements have `[alt]` attributes
●Form elements have associated labels
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●`button`, `link`, and `menuitem` elements have accessible names
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●No element has a `[tabindex]` value greater than 0
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
●`<video>` elements contain a `<track>` element with `[kind="captions"]`
●Uses ARIA roles only on compatible elements
●Identical links have the same purpose.
○`[accesskey]` values are unique
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○Links are distinguishable without relying on color.
○Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
○List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Image elements do not have `[alt]` attributes that are redundant text.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
100

Best Practices

●Uses HTTPS
●Avoids deprecated APIs
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No browser errors logged to the console
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
100

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.

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links have descriptive text
●Links are crawlable
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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