Lighthouse Mobile

· 0 checks — Mobile 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
/assets/images/decour/sprite-985586fbdbcf2ddaa034fd951fb4...	0.0 ms	674.3 KiB
www.virginia.edu/assets/images/homepage/poster-image.jpg	0.0 ms	569.5 KiB
www.virginia.edu/assets/images/homepage/Radio-telescope-on-tractor_1600x1200.jpg	0.0 ms	394.1 KiB
www.virginia.edu/assets/images/homepage/Home_is_Where_The_Hoos_Are_600x1067.jpg	0.0 ms	313.3 KiB
www.virginia.edu/assets/images/homepage/HP_Monticello_600x1067.jpg	0.0 ms	216.2 KiB
www.virginia.edu/assets/images/homepage/HP_This_Is_Virginia_600x1067.jpg	0.0 ms	210.2 KiB
www.virginia.edu/assets/images/homepage/lgDR-Founders.jpg	0.0 ms	98.4 KiB
/assets/images/homepage/HP-Homepage-A-student-sings-the-G...	0.0 ms	96.6 KiB
www.virginia.edu/assets/images/homepage/lgDR-Rousell.jpg	0.0 ms	81.4 KiB
customer.cludo.com/scripts/bundles/search-script.min.js	0.0 ms	51.1 KiB
www.virginia.edu/assets/css/styles.css?1	0.0 ms	22.8 KiB
www.virginia.edu/assets/images/logo-horizontal-ko.png	0.0 ms	20.1 KiB
www.virginia.edu/assets/images/logo-primary-blue.png	0.0 ms	9.8 KiB
www.virginia.edu/assets/images/logo-primary-ko.png	0.0 ms	9.0 KiB
tags.srv.stackadapt.com/events.js	5.0 s	7.7 KiB
use.typekit.net/tgy5tlj.js?1	600.0 s	7.8 KiB
www.virginia.edu/assets/images/decour/corner-top-left-white.png	0.0 ms	5.5 KiB
www.virginia.edu/assets/images/decour/HP-DECOR-Filigree-Weave-Pattern.svg	0.0 ms	3.8 KiB
www.virginia.edu/assets/images/decour/corner-bottom-right-white.png	0.0 ms	2.9 KiB
customer.cludo.com/assets/10000068/10000076/cludo-search.min.css	0.0 ms	2.7 KiB
script.crazyegg.com/pages/scripts/0090/5137.js	300.0 s	2.7 KiB
www.virginia.edu/assets/js/vertical-youtube-block-v2.js	0.0 ms	2.6 KiB
www.virginia.edu/assets/js/search_functions_v2.js?1	0.0 ms	2.5 KiB
www.virginia.edu/assets/js/getting-started-links-v2.js	0.0 ms	2.3 KiB
www.virginia.edu/assets/js/rave_alert.js?1	0.0 ms	2.0 KiB
www.virginia.edu/assets/images/decour/HP-DECOR-Filigree-Oculus.svg	0.0 ms	1.7 KiB
www.virginia.edu/assets/js/slideshow.js	0.0 ms	1.6 KiB
www.virginia.edu/assets/css/rss-reader.css	0.0 ms	1.5 KiB
www.virginia.edu/assets/js/mobile-submenu-toggle.js	0.0 ms	1.1 KiB
www.virginia.edu/assets/js/fbp.js?1	0.0 ms	1.0 KiB
www.virginia.edu/assets/js/calendar-feed.js	0.0 ms	1.0 KiB
www.virginia.edu/assets/css/fbp.css	0.0 ms	850 B
www.virginia.edu/assets/images/decour/white_arrow_down.png	0.0 ms	533 B
www.virginia.edu/assets/images/decour/HP-DECOR-Curved-Arrow-Right-orange.svg	0.0 ms	497 B
www.virginia.edu/assets/images/decour/HP-DECOR-Curved-Arrow-Right-white.svg	0.0 ms	495 B
www.virginia.edu/assets/images/decour/HP-DECOR-Curved-Arrow-Right-Corner.svg	0.0 ms	493 B
cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.css	604800.0 s	4.8 KiB
/assets/images/decour/HP-DECOR-Curved-Arrow-Circle-Left-A...	0.0 ms	485 B
www.virginia.edu/assets/images/decour/HP-DECOR-Curved-Lines.svg	0.0 ms	454 B
/assets/images/decour/HP-DECOR-Curved-Arrow-Circle-Right-...	0.0 ms	449 B
www.virginia.edu/assets/images/decour/HP-DECOR-Bottom-Right-Corner.svg	0.0 ms	413 B
www.virginia.edu/assets/images/decour/HP-DECOR-Curved-Arrow-Right.svg	0.0 ms	407 B
www.virginia.edu/assets/images/decour/corner-top-left-orange.svg	0.0 ms	394 B
/p.gif?s=1&k=tgy5tlj&ht=tk&h=www.virginia.edu&f=8482.8484...	604800.0 s	205 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.

URL	Est Savings
cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/webfonts/fa-solid-900.woff2	90 ms
/af/ed9e57/000000000000000000012d65/27/l?primer=388f68b35...	70 ms
/af/68efc1/000000000000000000012d69/27/l?primer=388f68b35...	65 ms
/af/4dc82a/000000000000000077359e9b/30/l?primer=81a69539b...	65 ms
/af/cb5984/000000000000000077359eab/30/l?primer=81a69539b...	65 ms
/af/f36f8c/000000000000000077359eb0/30/l?primer=81a69539b...	65 ms
/af/755bca/000000000000000077359eb1/30/l?primer=81a69539b...	65 ms
/af/63b6fe/0000000000000000000118bb/27/l?primer=7cdcb44be...	45 ms
/af/2d0302/0000000000000000000118b6/27/l?primer=7cdcb44be...	40 ms
/af/01ad8b/0000000000000000000118bc/27/l?primer=7cdcb44be...	40 ms
/af/8d9b32/0000000000000000000118bf/27/l?primer=7cdcb44be...	30 ms
/af/ce6b1d/0000000000000000000118ba/27/l?primer=7cdcb44be...	30 ms
/af/7bc359/0000000000000000000118bd/27/l?primer=7cdcb44be...	30 ms
cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/webfonts/fa-regular-400.woff2	30 ms
/af/4d7df9/000000000000000077359ea3/30/l?primer=81a69539b...	25 ms
/af/07d425/0000000000000000000118ae/27/l?primer=7cdcb44be...	20 ms
/af/5b1404/0000000000000000000118b4/27/l?primer=7cdcb44be...	20 ms
/af/e5e7a7/0000000000000000000118be/27/l?primer=7cdcb44be...	20 ms
/af/d7062a/000000000000000000012d66/27/l?primer=388f68b35...	15 ms
/af/3cbd9b/000000000000000000012d68/27/l?primer=388f68b35...	15 ms
/af/9a7284/0000000000000000000118b2/27/l?primer=7cdcb44be...	15 ms
/af/82db8a/000000000000000077359dfa/30/l?primer=7cdcb44be...	10 ms
/af/0de2a8/0000000000000000000118c0/27/l?primer=7cdcb44be...	10 ms
/af/2e6f07/000000000000000000011ce6/27/l?primer=7cdcb44be...	10 ms
/af/a5188d/0000000000000000000118b0/27/l?primer=7cdcb44be...	10 ms
/af/9cb78a/0000000000000000000118ad/27/l?primer=7cdcb44be...	5.0 ms
/af/c7b613/0000000000000000000118b3/27/l?primer=7cdcb44be...	5.0 ms
/af/b825af/0000000000000000000118b1/27/l?primer=7cdcb44be...	5.0 ms

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-VIDEO

nodeLabel: body.home > section.hp-hero > video#hp-hero-video

path: 1,HTML,1,BODY,8,SECTION,1,VIDEO

selector: body.home > section.hp-hero > video#hp-hero-video

snippet: <video id="hp-hero-video" autoplay="" muted="" playsinline="" tabindex="-1" aria-hidden="true" poster="/assets/images/homepage/poster-image.jpg">

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.

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

value: no origins were preconnected

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.

URL	Transfer Size	Duration
www.virginia.edu/assets/js/calendar-feed.js	1.0 KiB
www.virginia.edu/assets/js/rave_alert.js?1	2.0 KiB
www.virginia.edu/assets/css/fbp.css	850 B
www.virginia.edu/assets/js/search_functions_v2.js?1	2.5 KiB
www.virginia.edu/assets/js/fbp.js?1	1.0 KiB	313 ms
www.virginia.edu/assets/css/styles.css?1	22.8 KiB	625 ms
www.virginia.edu/assets/css/rss-reader.css	1.5 KiB
ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js	30.4 KiB	1.3 s
cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css	19.1 KiB	1.2 s
customer.cludo.com/assets/10000068/10000076/cludo-search.min.css	2.7 KiB	804 ms
use.typekit.net/tgy5tlj.js?1	7.8 KiB	922 ms
cdn.jsdelivr.net/npm/slick-carousel@1.8.1/slick/slick.min.js	10.8 KiB	151 ms
cdn.jsdelivr.net/npm/slick-carousel@1.8.1/slick/slick-theme.css	1.3 KiB	151 ms
cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.css	4.8 KiB	301 ms
cdn.jsdelivr.net/npm/slick-carousel@1.8.1/slick/slick.css	651 B	752 ms

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
body.home > section.hp-hero > img#hp-hero-poster `body.home > section.hp-hero > img#hp-hero-poster`	www.virginia.edu/assets/images/homepage/poster-image.jpg	568.7 KiB	352.7 KiB
Construction lift holding a satellite dish against a star-filled night sky. `div.research-large > a > div.research-large-image > img`	www.virginia.edu/assets/images/homepage/Radio-telescope-on-tractor_1600x1200.jpg	393.5 KiB	297.6 KiB
Two UVA students smiling and laughing in front of a brick building `div.vertical-video-item > div.vertical-video-card > button.vertical-poster-container > img.poster`	www.virginia.edu/assets/images/homepage/Home_is_Where_The_Hoos_Are_600x1067.jpg	312.8 KiB	230.7 KiB
Front view of Monticello, Jefferson’s historic home, with red bricks, white col… `div.vertical-video-item > div.vertical-video-card > button.vertical-poster-container > img.poster`	www.virginia.edu/assets/images/homepage/HP_Monticello_600x1067.jpg	215.8 KiB	133.9 KiB
Aerial night view of a stadium with people in orange forming 'UVA' and firework… `div.vertical-video-item > div.vertical-video-card > button.vertical-poster-container > img.poster`	www.virginia.edu/assets/images/homepage/HP_This_Is_Virginia_600x1067.jpg	209.8 KiB	127.9 KiB
Chief Justice John G. Roberts Jr., architect Jeanne Gang and scholar and author… `div.col2 > div.rss-item > div.hp-ne-topic-row-image > img`	www.virginia.edu/assets/images/homepage/lgDR-Founders.jpg	98.2 KiB	68.0 KiB
UVA women’s basketball coach Aaron Roussell walks hand-in-hand with his daughte… `div.col2 > div.rss-item > div.hp-ne-topic-row-image > img`	www.virginia.edu/assets/images/homepage/lgDR-Rousell.jpg	81.2 KiB	56.2 KiB
A student sings the Good Old Song into a microphone on Grounds `div.vertical-video-item > div.vertical-video-card > button.vertical-poster-container > img.poster`	/assets/images/homepage/HP-Homepage-A-student-sings-the-G...	96.3 KiB	20.6 KiB

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

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

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.

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: 170 ms 36.0 KiB

URL	Transfer Size	Est Savings
cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css	18.4 KiB	18.2 KiB
www.virginia.edu/assets/css/styles.css?1	22.6 KiB	17.8 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: 860 ms 169.7 KiB

URL	Transfer Size	Est Savings
www.googletagmanager.com/gtag/js?id=G-J44315NZPS&cx=c&gtm=4e64h1	170.3 KiB	68.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-58VK8DX	150.1 KiB	47.9 KiB
/pages/versioned/common-scripts/4ce8c7df8d425cc5046457682...	55.1 KiB	27.4 KiB
customer.cludo.com/scripts/bundles/search-script.min.js	48.9 KiB	25.7 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.

URL	Total CPU Time	Script Evaluation	Script Parse
www.virginia.edu/	749 ms	47 ms	3.2 ms
Unattributable	655 ms	18 ms	0.0 ms
www.googletagmanager.com/gtm.js?id=GTM-58VK8DX	409 ms	343 ms	49 ms
/pages/versioned/common-scripts/4ce8c7df8d425cc5046457682...	366 ms	330 ms	12 ms
ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js	320 ms	218 ms	8.2 ms
www.googletagmanager.com/gtag/js?id=G-J44315NZPS&cx=c&gtm=4e64h1	221 ms	171 ms	47 ms
cdn.parsely.com/keys/virginia.edu/p.js	108 ms	100 ms	3.4 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.

Category	Time Spent
Script Evaluation	1.4 s
Other	887 ms
Style & Layout	418 ms
Script Parsing & Compilation	168 ms
Rendering	144 ms
Parse HTML & CSS	67 ms
Garbage Collection	23 ms

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 2.6 KiB

URL	Transfer Size	Est Savings
www.virginia.edu/assets/css/styles.css?1	22.8 KiB	2.6 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
/v3-1/playback/aea2802b-e494-4d2a-8b98-824b56fc1503/836a7...	4.8 MiB
/assets/images/decour/sprite-985586fbdbcf2ddaa034fd951fb4...	674.3 KiB
www.virginia.edu/assets/images/homepage/poster-image.jpg	569.5 KiB
www.virginia.edu/assets/images/homepage/Radio-telescope-on-tractor_1600x1200.jpg	394.1 KiB
www.virginia.edu/assets/images/homepage/Home_is_Where_The_Hoos_Are_600x1067.jpg	313.3 KiB
www.virginia.edu/assets/images/homepage/HP_Monticello_600x1067.jpg	216.2 KiB
www.virginia.edu/assets/images/homepage/HP_This_Is_Virginia_600x1067.jpg	210.2 KiB
www.googletagmanager.com/gtag/js?id=G-J44315NZPS&cx=c&gtm=4e64h1	170.4 KiB
cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/webfonts/fa-solid-900.woff2	153.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-58VK8DX	150.4 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
Chief Justice John G. Roberts Jr., architect Jeanne Gang and scholar and author… `div.col2 > div.rss-item > div.hp-ne-topic-row-image > img`	www.virginia.edu/assets/images/homepage/lgDR-Founders.jpg
UVA women’s basketball coach Aaron Roussell walks hand-in-hand with his daughte… `div.col2 > div.rss-item > div.hp-ne-topic-row-image > img`	www.virginia.edu/assets/images/homepage/lgDR-Rousell.jpg
body.home > section.stats-simple > div.decour-curves > img `body.home > section.stats-simple > div.decour-curves > img`	www.virginia.edu/assets/images/decour/HP-DECOR-Curved-Lines.svg
body.home > section.stats-simple > div.decour-oculus > img `body.home > section.stats-simple > div.decour-oculus > img`	www.virginia.edu/assets/images/decour/HP-DECOR-Filigree-Oculus.svg
The University of Virginia `header > div#horizontal-logo > a > img`	www.virginia.edu/assets/images/logo-horizontal-ko.png
body.home > section.stats-simple > div.decour-weave > img `body.home > section.stats-simple > div.decour-weave > img`	www.virginia.edu/assets/images/decour/HP-DECOR-Filigree-Weave-Pattern.svg
The University of Virginia `header > nav.mobile-menu > div.mobile-logo-center > img`	www.virginia.edu/assets/images/logo-primary-blue.png
The University of Virginia `div.footer-content > div.footer-logo > a > img`	www.virginia.edu/assets/images/logo-primary-ko.png
Side-angle view of the Rotunda, framed by blooming trees. `div.slick-list > div.slick-track > div#slick-slide00 > img`
Smiling fire performer holding flaming torches. `div.slick-list > div.slick-track > div#slick-slide01 > img`
Aerial view of a university campus with quad and autumn trees. `div.slick-list > div.slick-track > div#slick-slide02 > img`
Two person hugging each other. `div.slick-list > div.slick-track > div#slick-slide03 > img`
Professor lecturing to students in a large auditorium. `div.slick-list > div.slick-track > div#slick-slide04 > img`
Three people in lab coats and gloves examine a specimen together on a metal tra… `div.slick-list > div.slick-track > div#slick-slide05 > img`
UVA Cavman flexes on a basketball court in front of a crowd. `div.slick-list > div.slick-track > div#slick-slide06 > img`

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

●Layout shift culprits

●Document request latency

●Optimize DOM size

●Forced reflow

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify JavaScript

●User Timing marks and measures 9 user timings

●Avoid long main-thread tasks 10 long tasks found

●Avoid non-composited animations 1 animated element found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 160 ms

●Server Backend Latencies 350 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid multiple page redirects

●Initial server response time was short Root document took 330 ms

●Avoid large layout shifts 3 layout shifts found

○INP breakdown

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.mobile-main-nav > ul > li > button.dropdown-toggle `div.mobile-main-nav > ul > li > button.dropdown-toggle`
div.mobile-main-nav > ul > li > button.dropdown-toggle `div.mobile-main-nav > ul > li > button.dropdown-toggle`
div.mobile-main-nav > ul > li > button.dropdown-toggle `div.mobile-main-nav > ul > li > button.dropdown-toggle`

Including a skip link can help users skip to the main content to save time. Learn more about skip links.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Skip to main content `body.home > a.skip-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
LET’S GO `div.form > form#redirectForm > button.submit-btn > span`

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
Scroll to video 2 `body.home > section.home > div.video-pagination-dots > div.dot`
Scroll to video 3 `body.home > section.home > div.video-pagination-dots > div.dot`
Scroll to video 4 `body.home > section.home > div.video-pagination-dots > div.dot`

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html.wf-adobecaslonpro-n4-active `html.wf-adobecaslonpro-n4-active`

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
UVA Students Sing ‘The Good Old Song’ `div.vertical-video-container > div.vertical-video-item > div.vertical-video-card > button.vertical-poster-container`
Home is Where the Hoos Are `div.vertical-video-container > div.vertical-video-item > div.vertical-video-card > button.vertical-poster-container`
Students Tour Monticello `div.vertical-video-container > div.vertical-video-item > div.vertical-video-card > button.vertical-poster-container`
This is Virginia `div.vertical-video-container > div.vertical-video-item > div.vertical-video-card > button.vertical-poster-container`

○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

●Input buttons have discernible text.

●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

●ARIA input fields have accessible names

●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.

●Links have a discernible name

●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

●Heading elements appear in a sequentially-descending order

●Deprecated ARIA roles were not used

●ARIA IDs are unique

○`[accesskey]` values are unique

○Elements with `role="dialog"` or `role="alertdialog"` 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 type="image">` elements have `[alt]` text

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○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

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Uses ARIA roles only on compatible elements

○Image elements do not have `[alt]` attributes that are redundant text.

○Identical links have the same purpose.

○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

User Experience

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Aspect Ratio (Displayed)	Aspect Ratio (Actual)
The University of Virginia `header > div#horizontal-logo > a > img`	www.virginia.edu/assets/images/logo-horizontal-ko.png	127 x 31 (4.10)	909 x 100 (9.09)

●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

●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

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

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`