Lighthouse Desktop

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

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.

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.

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.

Request	Cache TTL	Transfer Size
us01ccistatic.zoom.us/us01cci/web-sdk/chat-client.js	30.0 s	55.0 KiB
www.zoom.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/b0a7532ac8ec/main.js?	14400.0 s	11.9 KiB
cdn.cookielaw.org/logos/static/powered_by_logo.svg	86400.0 s	2.5 KiB
/logos/65962359-ef0d-4399-9db4-572d06de08aa/35aa5f80-9a65...	86400.0 s	1.8 KiB
cdn.cookielaw.org/logos/static/ot_close.svg	86400.0 s	631 B
cdn.cookielaw.org/scripttemplates/202409.2.0/otBannerSdk.js	86400.0 s	0 B
cdn.bc0a.com/autopilot/f00000000314502/autopilot_sdk.js	3600.0 s	0 B
cdn.cookielaw.org/scripttemplates/otSDKStub.js	86400.0 s	0 B
/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c124171768917...	86400.0 s	0 B
cdn.cookielaw.org/logos/static/ot_close.svg	86400.0 s	0 B

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:82.674 source:map[column:33 line:84 type:source-location url:https://st1.zoom.us/homepage/20260413-1449/primary/dist/components/product-hub-components/CustomerStoriesExpandedCards/CustomerStoriesExpandedCards.js 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:29.572 source:map[column:31 line:679 type:source-location url:https://st1.zoom.us/homepage/20260413-1449/primary/dist/components/product-hub-components/NavigationWorkplace/NavigationWorkplace.js urlProvider:network]] map[reflowTime:7.028 source:map[column:51 line:1558 type:source-location url:https://st1.zoom.us/homepage/20260413-1449/primary/dist/components/product-hub-components/NavigationWorkplace/NavigationWorkplace.js urlProvider:network]] map[reflowTime:10.88 source:map[column:35 line:59 type:source-location url:https://st1.zoom.us/homepage/20260413-1449/primary/dist/components/modules/Hero/Hero.js urlProvider:network]] map[reflowTime:22.237 source:map[column:29 line:67 type:source-location url:https://st1.zoom.us/homepage/20260413-1449/primary/dist/components/product-hub-components/CustomSwiperSlider/CustomSwiperSlider.js urlProvider:network]] map[reflowTime:21.593 source:map[column:18 line:194 type:source-location url:https://st1.zoom.us/homepage/20260413-1449/primary/dist/components/product-hub-components/CustomSwiperSlider/CustomSwiperSlider.js urlProvider:network]] map[reflowTime:61.858 source:map[column:4560 line:12 type:source-location url:https://st1.zoom.us/homepage/20260413-1449/primary/dist/js/utilities/swiper-bundle.min.js urlProvider:network]] map[reflowTime:19.263 source:map[column:10280 line:12 type:source-location url:https://st1.zoom.us/homepage/20260413-1449/primary/dist/js/utilities/swiper-bundle.min.js urlProvider:network]] map[reflowTime:16.743 source:map[column:16795 line:12 type:source-location url:https://st1.zoom.us/homepage/20260413-1449/primary/dist/js/utilities/swiper-bundle.min.js urlProvider:network]] map[reflowTime:8.747 source:map[column:35 line:221 type:source-location url:https://st1.zoom.us/homepage/20260413-1449/primary/dist/components/product-hub-components/CustomerStoriesExpandedCards/CustomerStoriesExpandedCards.js urlProvider:network]] map[reflowTime:0.366 source:map[column:11 line:195 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/CSSPlugin.js urlProvider:network]] map[reflowTime:66.527 source:map[column:10760 line:12 type:source-location url:https://st1.zoom.us/homepage/20260413-1449/primary/dist/js/utilities/swiper-bundle.min.js urlProvider:network]] map[reflowTime:10.604 source:map[column:19 line:329 type:source-location url:https://st1.zoom.us/homepage/20260413-1449/primary/dist/components/product-hub-components/feature-tab-accordion/feature-tab-accordion.js urlProvider:network]] map[reflowTime:11.521 source:map[column:1558 line:0 type:source-location url:https://www.zoom.com/cdn-cgi/challenge-platform/scripts/jsd/main.js urlProvider:network]]]

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.

URL	Transfer Size
st1.zoom.us/homepage/20260413-1449/primary/dist/main.css?t=639108142964549050	0 B
cdn.bc0a.com/autopilot/f00000000314502/autopilot_sdk.js	0 B
st1.zoom.us/homepage/20260413-1449/primary/dist/swiper-bundle.min.css	0 B

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

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: 671 ms

URL	Time Spent
zoom.us/	287 ms
www.zoom.com/	383 ms
zoom.us/syncStatus?continue=https://www.zoom.com/	0.0 ms
www.zoom.com/?cms_guid=false	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 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: 320 ms 588.2 KiB

URL	Transfer Size	Est Savings
/us01cci/web-sdk/9283/web-campaign.js?env=us01&apikey=AM_...	301.3 KiB	159.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-5WKFT9	204.4 KiB	72.8 KiB
www.googletagmanager.com/gtm.js?id=GTM-5WKFT9	204.4 KiB	72.7 KiB
cdn.cookielaw.org/scripttemplates/202409.2.0/otBannerSdk.js	111.8 KiB	61.1 KiB
cdn.cookielaw.org/scripttemplates/202409.2.0/otBannerSdk.js	111.8 KiB	61.0 KiB
cdn.jsdelivr.net/npm/gsap@3.13.0/gsap-core.js	49.2 KiB	44.2 KiB
/homepage/20260413-1449/primary/dist/js/utilities/swiper-...	42.6 KiB	41.4 KiB
/homepage/20260413-1449/primary/dist/js/utilities/swiper-...	42.6 KiB	28.6 KiB
cdn.jsdelivr.net/npm/gsap@3.13.0/gsap-core.js	49.2 KiB	23.7 KiB
us01ccistatic.zoom.us/us01cci/web-sdk/chat-client.js	54.9 KiB	23.3 KiB

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.

Category	Time Spent
Other	824 ms
Style & Layout	823 ms
Script Evaluation	721 ms
Script Parsing & Compilation	190 ms
Rendering	112 ms
Parse HTML & CSS	90 ms
Garbage Collection	13 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 reason	Failure type
The page has an unload handler in the main frame.	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 138.8 KiB

URL	Transfer Size	Est Savings
/us01cci/web-sdk/9283/web-campaign.js?env=us01&apikey=AM_...	301.3 KiB	92.4 KiB
cdn.jsdelivr.net/npm/gsap@3.13.0/gsap-core.js	49.2 KiB	23.3 KiB
cdn.jsdelivr.net/npm/gsap@3.13.0/CSSPlugin.js	18.7 KiB	8.3 KiB
/homepage/20260413-1449/primary/dist/js/utilities/datalay...	9.6 KiB	5.3 KiB
/homepage/20260413-1449/primary/dist/components/product-h...	16.2 KiB	4.6 KiB
/homepage/20260413-1449/primary/dist/components/product-h...	11.8 KiB	3.0 KiB
st1.zoom.us/homepage/20260413-1449/primary/dist/js/utilities/utilities.js	4.7 KiB	2.0 KiB

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: 0.0 ms 17.5 KiB

URL	Transfer Size	Est Savings
	20.0 KiB	17.5 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.

URL	Transfer Size
/us01cci/web-sdk/9283/web-campaign.js?env=us01&apikey=AM_...	301.5 KiB
/homepage/20260413-1449/primary/dist/assets/zoommedia/emp...	227.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-5WKFT9	204.8 KiB
st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/sales.jpg	198.4 KiB
st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/marketing.jpg	188.8 KiB
/homepage/20260413-1449/primary/dist/assets/zoommedia/cus...	177.2 KiB
st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/docs.jpg	174.9 KiB
st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/clips.jpg	132.6 KiB
/homepage/20260413-1449/primary/dist/assets/zoommedia/col...	131.6 KiB
st1.zoom.us/homepage/20260413-1449/primary/dist/main.css?t=639108142964549050	123.7 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
A smiling woman poses in front of a camera in Zoom Clips, radiating joy and con… `div.custom-swiper-slider__slide > div.custom-swiper-slider__slide-content > a > img.custom-swiper-slider__slide-image`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/clips.jpg
Screenshot from a document kickoff session, featuring a list of topics and atte… `div.custom-swiper-slider__slide > div.custom-swiper-slider__slide-content > a > img.custom-swiper-slider__slide-image`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/docs.jpg
Meetings: Zoom Meetings app interface featuring various emoticons for enhanced … `div.custom-swiper-slider__slide > div.custom-swiper-slider__slide-content > a > img.custom-swiper-slider__slide-image`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/meetings.jpg
A woman engaged in a conversation on Zoom Phone, smiling as she talks. `div.custom-swiper-slider__slide > div.custom-swiper-slider__slide-content > a > img.custom-swiper-slider__slide-image`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/phone.jpg
Visual of the Zoom Whiteboard app, illustrating its note-taking capabilities an… `div.custom-swiper-slider__slide > div.custom-swiper-slider__slide-content > a > img.custom-swiper-slider__slide-image`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/whiteboard.jpg
Screenshot of contact center software showing a man providing virtual customer … `div.custom-swiper-slider__slide > div.custom-swiper-slider__slide-content > a > img.custom-swiper-slider__slide-image`	/homepage/20260413-1449/primary/dist/assets/zoommedia/con...
Visual of an AI Companion being prompted to list action items from a meeting `div.custom-swiper-slider__slide > div.custom-swiper-slider__slide-content > a > img.custom-swiper-slider__slide-image`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/AIC.jpg
Automatically captures, summarizes, and extracts action items from any virtual … `div.custom-swiper-slider__slide > div.custom-swiper-slider__slide-content > a > img.custom-swiper-slider__slide-image`	/homepage/20260413-1449/primary/dist/assets/zoommedia/my-...
Live video chat screenshot from a webinar, featuring multiple participants inte… `div.custom-swiper-slider__slide > div.custom-swiper-slider__slide-content > a > img.custom-swiper-slider__slide-image`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/web.jpg
Attendees in a Zoom conference room engaged in discussion, with a large screen … `div.custom-swiper-slider__slide > div.custom-swiper-slider__slide-content > a > img.custom-swiper-slider__slide-image`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/zoom-rooms.jpg
Chatbot screen showing the prompt, "How can I assist you?quot; inviting user in… `div.custom-swiper-slider__slide > div.custom-swiper-slider__slide-content > a > img.custom-swiper-slider__slide-image`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/virtual.jpg
my-notes-promo.webp `div.nav-sidebar__mega-panel-host > section.nav-main__panel > div#nav-main__promo-shared > img.nav-main__promo-image`	/homepage/20260413-1449/primary/dist/assets/zoommedia/my-...
Capital One `div#swiper-wrapper-27ddf879104a3f3ea > div.swiper-slide > div.zdcm-cs-expanded-card__content > img.zdcm-cs-expanded-card__logo`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/logo-3.svg
Cricut `div#swiper-wrapper-27ddf879104a3f3ea > div.swiper-slide > div.zdcm-cs-expanded-card__content > img.zdcm-cs-expanded-card__logo`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/logo-2.svg
Major League Baseball `div#swiper-wrapper-27ddf879104a3f3ea > div.swiper-slide > div.zdcm-cs-expanded-card__content > img.zdcm-cs-expanded-card__logo`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/logo-4.svg
Gartner Peer Insights Logo `div.ratings-container > div.rating-item > div.company-logo > img`	/homepage/20260413-1449/primary/dist/assets/zoommedia/gar...
Trust Radius Logo `div.ratings-container > div.rating-item > div.company-logo > img`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/TR-logo.svg
TheShareCo `div#swiper-wrapper-27ddf879104a3f3ea > div.swiper-slide > div.zdcm-cs-expanded-card__content > img.zdcm-cs-expanded-card__logo`	/homepage/20260413-1449/primary/dist/assets/zoommedia/log...
Zoom AI Companion 3.0 `div.zdcm-feature-spotlight-container > div.top-content > div.svg-icon > img`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/icon-aic.svg
G2 Logo `div.ratings-container > div.rating-item > div.company-logo > img`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/G2-logo.svg
ul.utility-nav__list > li.utility-nav__item > a#ot-do-not-sell > img `ul.utility-nav__list > li.utility-nav__item > a#ot-do-not-sell > img`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/images/privacyoptions.png
div.dropdowns > div.zdcm-module-footer-dropdown > button.zdcm-module-footer-dropdown__btn > img.zdcm-module-footer-dropdown__svg `div.dropdowns > div.zdcm-module-footer-dropdown > button.zdcm-module-footer-dropdown__btn > img.zdcm-module-footer-dropdown__svg`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/CaretDown.svg
div.dropdowns > div.zdcm-module-footer-dropdown > button.zdcm-module-footer-dropdown__btn > img.zdcm-module-footer-dropdown__svg `div.dropdowns > div.zdcm-module-footer-dropdown > button.zdcm-module-footer-dropdown__btn > img.zdcm-module-footer-dropdown__svg`	st1.zoom.us/homepage/20260413-1449/primary/dist/assets/zoommedia/CaretDown.svg

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

●Max Potential First Input Delay 110 ms

●Layout shift culprits

●Optimize DOM size

●Font display

●Improve image delivery

●LCP breakdown

●Modern HTTP

●Network dependency tree

●Optimize viewport for mobile

●Minify CSS

●JavaScript execution time 0.8 s

●Avoid long main-thread tasks 8 long tasks found

●Avoid non-composited animations 8 animated elements found

●Network Requests

●Network Round Trip Times 0 ms

●Server Backend Latencies 170 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 160 ms

●Avoid large layout shifts 3 layout shifts found

○INP breakdown

○LCP request discovery

○User Timing marks and measures

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

Each ARIA `role` supports a specific subset of `aria-*` attributes. Mismatching these invalidates the `aria-*` attributes. Learn how to match ARIA attributes to their roles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Download Center Get the most out of Zoom Language English Deutsch English Esp… `div.zdcm-module-footer-top > div.container > div.zdcm-module-footer-top__primary > nav.zdcm-module-footer-nav`

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Collaboration Customer support Marketing Sales Employee engagement AI-first UCa… `div#one-platform > div.wrapper > div.column > section#multi-tab-feature-component`

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.

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
section#logo-slider > div.body-container > div.fdn-logo-slide__controls > button.fdn-logo-slide__control `section#logo-slider > div.body-container > div.fdn-logo-slide__controls > button.fdn-logo-slide__control`

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.dropdowns > div.zdcm-module-footer-dropdown > button.zdcm-module-footer-dropdown__btn > img.zdcm-module-footer-dropdown__svg `div.dropdowns > div.zdcm-module-footer-dropdown > button.zdcm-module-footer-dropdown__btn > img.zdcm-module-footer-dropdown__svg`
div.dropdowns > div.zdcm-module-footer-dropdown > button.zdcm-module-footer-dropdown__btn > img.zdcm-module-footer-dropdown__svg `div.dropdowns > div.zdcm-module-footer-dropdown > button.zdcm-module-footer-dropdown__btn > img.zdcm-module-footer-dropdown__svg`
ul.utility-nav__list > li.utility-nav__item > a#ot-do-not-sell > img `ul.utility-nav__list > li.utility-nav__item > a#ot-do-not-sell > img`

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
Register now Join the Zoom Scale-UP Summit EMEA - grow with AI Tools Register n… `section#eff7fb9b-dc00-45ed-b1e6-ed23ddf82301 > div.hero__container > div.hero__content > a.fdn-alert-banner`

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
out of 7.9k+ reviews `div.ratings-container > div.rating-item > div.rating-text > p`
out of 54.9k+ reviews `div.ratings-container > div.rating-item > div.rating-text > p`
out of 5.8k+ reviews `div.ratings-container > div.rating-item > div.rating-text > p`

These are opportunities to improve the legibility of your content.

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
Meet My Notes: Your new AI note-taker My Notes captures insights from your con… `div.zdcm-fdn-announcement-card-container > div.fdn-announcement-card-wrapper > div.card-container > a.fdn-zdcm-cards`
Zoom wins Emmy for Engineering, Science & Technology From connecting remote wo… `div.zdcm-fdn-announcement-card-container > div.fdn-announcement-card-wrapper > div.card-container > a.fdn-zdcm-cards`
Eric Yuan on accessible AI: Include AI tools for business Zoom CEO, Eric Yuan,… `div.fdn-announcement-card-wrapper > div.card-container > div.double-card > a.fdn-zdcm-cards`
Zoom launches AI app for frontline workers The app handles scheduling, updates… `div.fdn-announcement-card-wrapper > div.card-container > div.double-card > a.fdn-zdcm-cards`

○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-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●`[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

●`[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

●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

●`[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

●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

●No element has a `[tabindex]` value greater than 0

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●ARIA IDs are unique

●`<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

○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

○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

○Form elements have associated labels

○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.

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
Unload event listeners are deprecated and will be removed.	us01ccistatic.zoom.us/us01cci/web-sdk/chat-client.js line 4, col 6778
SharedStorage	www.zoom.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.	www.zoom.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
Fledge	www.zoom.com/cdn-cgi/challenge-platform/scripts/jsd/main.js

●Uses HTTPS

●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 clickjacking with XFO or CSP

●Mitigate DOM-based XSS with Trusted Types

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Detected JavaScript libraries

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destination	Link Text
www.zoom.com/en/products/business-services/	Learn more
www.zoom.com/en/products/ai-assistant/	Learn more
developers.zoom.us/	Learn more
www.zoom.com/en/products/collaboration-tools/	Learn more
www.zoom.com/en/products/ai-assistant/features/ai-note-taking/	Learn more
www.zoom.com/en/products/ai-assistant/	Learn more
www.zoom.com/en/customer-stories/major-league-baseball/	Read more

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.dropdowns > div.zdcm-module-footer-dropdown > button.zdcm-module-footer-dropdown__btn > img.zdcm-module-footer-dropdown__svg `div.dropdowns > div.zdcm-module-footer-dropdown > button.zdcm-module-footer-dropdown__btn > img.zdcm-module-footer-dropdown__svg`
div.dropdowns > div.zdcm-module-footer-dropdown > button.zdcm-module-footer-dropdown__btn > img.zdcm-module-footer-dropdown__svg `div.dropdowns > div.zdcm-module-footer-dropdown > button.zdcm-module-footer-dropdown__btn > img.zdcm-module-footer-dropdown__svg`
ul.utility-nav__list > li.utility-nav__item > a#ot-do-not-sell > img `ul.utility-nav__list > li.utility-nav__item > a#ot-do-not-sell > img`

Format your HTML in a way that enables crawlers to better understand your app’s content.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Cookies Settings `div.utility-nav > ul.utility-nav__list > li.utility-nav__item > a.ot-sdk-show-settings`

To appear in search results, crawlers need access to your app.

○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

●robots.txt is valid

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`