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.

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.

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
fonts.gstatic.com/s/lato/v25/S6u8w4BMUTPHjxsAXC-qNiXg7Q.woff2	65 ms
use.fontawesome.com/releases/v5.9.0/webfonts/fa-solid-900.woff2	60 ms
use.fontawesome.com/releases/v5.9.0/webfonts/fa-brands-400.woff2	55 ms
fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh7USSwiPGQ3q5d0.woff2	50 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	45 ms
fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh6UVSwiPGQ3q5d0.woff2	35 ms
fonts.gstatic.com/s/lato/v25/S6uyw4BMUTPHjx4wXiWtFCc.woff2	30 ms

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:0.581 source:map[column:197 line:758 type:source-location url:https://www.googletagmanager.com/gtag/js?id=G-0C80C824X3&cx=c&gtm=4e64k0 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:101.66 source:map[type:text value:[unattributed]]] map[reflowTime:0.581 source:map[column:55 line:755 type:source-location url:https://www.googletagmanager.com/gtag/js?id=G-0C80C824X3&cx=c&gtm=4e64k0 urlProvider:network]] map[reflowTime:0.535 source:map[column:79427 line:1 type:source-location url:https://www.sfsu.edu/core/assets/vendor/jquery/jquery.min.js?v=3.7.1 urlProvider:network]] map[reflowTime:1.226 source:map[column:58100 line:0 type:source-location url:https://www.youvisit.com/SmartScript/latest/smartscript.js?v=26.1.6 urlProvider:network]] map[reflowTime:0.81 source:map[column:58714 line:0 type:source-location url:https://www.youvisit.com/SmartScript/latest/smartscript.js?v=26.1.6 urlProvider:network]]]

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
Family showing SF State gator bag `main.main-container > div.paragraph > div.field > img.img-responsive`	www.sfsu.edu/sites/default/files/images/exploresfsu23.png	2.7 MiB	2.7 MiB
design team collaborating `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/Academics_1200x800.jpeg	796.8 KiB	748.3 KiB
Students posing in front of the Golden Gate Bridge `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/Location_1200x800.jpeg	724.8 KiB	676.3 KiB
Students gathering outside `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/CampusLife_1200x800.jpeg	649.8 KiB	601.3 KiB
Academic program advising session `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/AcademicPrograms_1200x800.jpeg	610.4 KiB	561.9 KiB
Students meeting atop the Cesar Chavez Student Center `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/BeyondClassroom_1200x600.jpeg	546.9 KiB	510.5 KiB
Men's basketball players in a group clapping one another's hands `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/SFSU-Gator-Athletics-Basketball.JPG	556.0 KiB	507.5 KiB
Student advising session `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/StudentServices_1200x800.jpeg	543.0 KiB	494.5 KiB
Science student reaching for vial `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/ConductResearch_1200x600.jpeg	403.5 KiB	367.2 KiB
Students walking through quad `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/NextChapter_500x300.jpeg	166.3 KiB	141.9 KiB
Students in classroom together `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/Apply_500x300.jpeg	106.1 KiB	81.7 KiB
Students in classroom `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/Affording_500x300.jpeg	98.6 KiB	74.1 KiB
32% `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/32_0.png	13.1 KiB	9.0 KiB
#20 `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/20_0.png	10.1 KiB	6.9 KiB
#10 `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/10_1.png	8.9 KiB	6.1 KiB

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-IMG

nodeLabel: Family showing SF State gator bag

path: 1,HTML,1,BODY,2,DIV,2,MAIN,2,DIV,0,DIV,0,IMG

selector: main.main-container > div.paragraph > div.field > img.img-responsive

snippet: <img loading="lazy" src="/sites/default/files/images/exploresfsu23.png" width="2040" height="900" alt="Family showing SF State gator bag" class="img-responsive">

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

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.sfsu.edu/core/modules/views/css/views.module.css?tdwoto	421 B
/core/modules/system/css/components/reset-appearance.modu...	385 B
www.sfsu.edu/core/modules/system/css/components/tablesort.module.css?tdwoto	445 B
/profiles/custom/sfstatedrupal/themes/custom/sfstatetempl...	592 B
/profiles/custom/sfstatedrupal/themes/custom/sfstatetempl...	11.0 KiB	301 ms
www.sfsu.edu/core/modules/system/css/components/details.module.css?tdwoto	299 B
www.sfsu.edu/core/modules/system/css/components/js.module.css?tdwoto	605 B
/sites/default/files/asset_injector/css/paragraph_spacing...	343 B
www.sfsu.edu/core/modules/system/css/components/clearfix.module.css?tdwoto	420 B
/core/modules/system/css/components/system-status-report-...	501 B
www.sfsu.edu/core/modules/system/css/components/align.module.css?tdwoto	483 B
/profiles/custom/sfstatedrupal/themes/custom/sfstatetempl...	2.4 KiB
use.fontawesome.com/releases/v5.9.0/css/all.css	12.9 KiB	981 ms
use.fontawesome.com/releases/v5.9.0/css/v4-shims.css	4.7 KiB	170 ms
fonts.googleapis.com/css?family=Lato:300,400,400i,700\|Open+Sans:300,400,400i,700	2.5 KiB	833 ms
/profiles/custom/sfstatedrupal/themes/custom/sfstatetempl...	32.4 KiB	452 ms
www.sfsu.edu/core/modules/system/css/components/system-status-counter.css?tdwoto	522 B
/core/modules/system/css/components/position-container.mo...	299 B
www.sfsu.edu/core/modules/system/css/components/nowrap.module.css?tdwoto	302 B
/profiles/custom/sfstatedrupal/themes/custom/sfstatehome/...	2.7 KiB	151 ms
www.sfsu.edu/core/modules/system/css/components/resize.module.css?tdwoto	364 B
/sites/default/files/asset_injector/css/campus_tour_butto...	418 B
/core/modules/system/css/components/system-status-report-...	369 B
/profiles/custom/sfstatedrupal/modules/custom/sfstate_ale...	675 B
www.sfsu.edu/modules/contrib/paragraphs/css/paragraphs.unpublished.css?tdwoto	304 B
/profiles/custom/sfstatedrupal/themes/custom/sfstatetempl...	1.2 KiB
fonts.googleapis.com/css?family=Open+Sans:400,600,700&display=swap	1.8 KiB	176 ms
www.sfsu.edu/core/modules/system/css/components/item-list.module.css?tdwoto	354 B
www.sfsu.edu/core/modules/system/css/components/hidden.module.css?tdwoto	949 B
/core/modules/system/css/components/container-inline.modu...	370 B	151 ms
www.sfsu.edu/core/modules/system/css/components/fieldgroup.module.css?tdwoto	371 B

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
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.6 KiB
www.youvisit.com/SmartScript/latest/smartscript.js?v=26.1.6	0.0 ms	53.3 KiB
/signals/config/2198367797272265?v=2.9.303&r=stable&domai...	1200.0 s	44.8 KiB
i.ytimg.com/vi/iotTfNhahXA/sddefault.jpg	7200.0 s	42.7 KiB
www.youvisit.com/media/88825/panoramas/337728/1024.jpg	86400.0 s	62.1 KiB
www.redditstatic.com/ads/pixel.js	60.0 s	19.0 KiB
www.google-analytics.com/analytics.js	7200.0 s	20.9 KiB
js.adsrvr.org/up_loader.1.1.0.js	0.0 ms	12.3 KiB
s.yimg.com/wi/ytc.js	0.0 ms	7.1 KiB
www.youvisit.com/tour/Embed/js3	1800.0 s	5.5 KiB
acdn.adnxs.com/dmp/up/pixie.js	86402.0 s	9.2 KiB
cdn.youvisit.com/Assets/svg/enlarge.svg	0.0 ms	1.8 KiB
cdn.youvisit.com/Assets/svg/yvsmile.svg	0.0 ms	1.3 KiB
cdn.youvisit.com/Assets/svg/icons/icon_video_pause_transparent.svg	0.0 ms	1.2 KiB
cdn.youvisit.com/Assets/svg/icons/icon_video_play_transparent.svg	0.0 ms	1.2 KiB
js.adsrvr.org/universal_pixel.js	0.0 ms	958 B
/rp.gif?ts=1776894317021&id=a2_hbgogq14h2ah&event=PageVis...	0.0 ms	666 B
/config/edu/3eddbc4c-36bf-4bd8-ae84-3bd6ac0bb2f9.js?v=3.5...	0.0 ms	466 B
static.doubleclick.net/instream/ad_status.js	900.0 s	495 B
/idsync/ex/receive/check?partner_id=2305&partner_device_i...	0.0 ms	427 B
/syncMe?partnerDomain=simpli.fi&idType=cookie&partnerUser...	0.0 ms	386 B
ps.eyeota.net/match?bid=irm51m1&uid=01F43BD7092A4E2B9378111AF5E9CB60	0.0 ms	354 B
/tr/?id=2198367797272265&ev=PageView&dl=https%3A%2F%2Fwww...	0.0 ms	274 B
/profiles_engine/ProfilesEngineServlet?at=20&dpi=21243074...	0.0 ms	218 B
simplifi.partners.tremorhub.com/sync?UISF=824A13AEA8D64D70AB4833BF238C3A7D	0.0 ms	175 B

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

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: 753 ms

URL	Time Spent
sfsu.edu/	753 ms
www.sfsu.edu/	0.0 ms

Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.2 s

URL	Time Spent
www.sfsu.edu/	1.3 s

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: 0.0 ms 12.4 KiB

URL	Transfer Size	Est Savings
use.fontawesome.com/releases/v5.9.0/css/all.css	12.7 KiB	12.4 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: 450 ms 427.6 KiB

URL	Transfer Size	Est Savings
www.googletagmanager.com/gtag/js?id=DC-15606292	129.1 KiB	97.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-58L3BPZ	145.4 KiB	65.9 KiB
www.googletagmanager.com/gtag/js?id=UA-32666100-1	115.6 KiB	61.6 KiB
www.googletagmanager.com/gtag/js?id=G-0C80C824X3&cx=c&gtm=4e64k0	149.0 KiB	60.9 KiB
www.googletagmanager.com/gtag/destination?id=DC-15606292&cx=c&gtm=4e64k0	129.2 KiB	56.3 KiB
connect.facebook.net/en_US/fbevents.js	96.5 KiB	34.9 KiB
/profiles/custom/sfstatedrupal/themes/custom/sfstatetempl...	33.8 KiB	28.7 KiB
www.youvisit.com/SmartScript/latest/smartscript.js?v=26.1.6	53.0 KiB	21.6 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
Unattributable	948 ms	109 ms	0.0 ms
www.sfsu.edu/	841 ms	6.1 ms	1.1 ms
www.googletagmanager.com/gtm.js?id=GTM-58L3BPZ	368 ms	288 ms	52 ms
www.redditstatic.com/ads/pixel.js	249 ms	230 ms	6.3 ms
www.googletagmanager.com/gtag/destination?id=DC-15606292&cx=c&gtm=4e64k0	179 ms	147 ms	31 ms
www.googletagmanager.com/gtag/js?id=G-0C80C824X3&cx=c&gtm=4e64k0	171 ms	126 ms	42 ms
www.googletagmanager.com/gtag/js?id=UA-32666100-1	169 ms	129 ms	27 ms
www.youvisit.com/SmartScript/latest/smartscript.js?v=26.1.6	159 ms	125 ms	21 ms
sc-static.net/scevent.min.js	137 ms	124 ms	6.0 ms
/signals/config/2198367797272265?v=2.9.303&r=stable&domai...	132 ms	114 ms	17 ms
connect.facebook.net/en_US/fbevents.js	128 ms	103 ms	23 ms
www.sfsu.edu/core/assets/vendor/jquery/jquery.min.js?v=3.7.1	77 ms	61 ms	7.9 ms
www.google-analytics.com/analytics.js	69 ms	64 ms	5.2 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	1.9 s
Other	1.1 s
Style & Layout	498 ms
Script Parsing & Compilation	346 ms
Rendering	138 ms
Parse HTML & CSS	108 ms
Garbage Collection	67 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 7.1 KiB

URL	Transfer Size	Est Savings
/profiles/custom/sfstatedrupal/themes/custom/sfstatetempl...	32.4 KiB	7.1 KiB

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 9.1 KiB

URL	Transfer Size	Est Savings
www.sfsu.edu/core/misc/drupal.js?v=10.6.5	7.1 KiB	5.6 KiB
www.sfsu.edu/themes/contrib/bootstrap/js/drupal.bootstrap.js?tdwoto	5.9 KiB	3.5 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
www.sfsu.edu/sites/default/files/images/exploresfsu23.png	2.7 MiB
www.sfsu.edu/sites/default/files/images/Academics_1200x800.jpeg	797.5 KiB
www.sfsu.edu/sites/default/files/images/Location_1200x800.jpeg	725.5 KiB
www.sfsu.edu/sites/default/files/images/CampusLife_1200x800.jpeg	650.3 KiB
www.sfsu.edu/sites/default/files/images/AcademicPrograms_1200x800.jpeg	610.8 KiB
www.sfsu.edu/sites/default/files/images/SFSU-Gator-Athletics-Basketball.JPG	556.5 KiB
www.sfsu.edu/sites/default/files/images/BeyondClassroom_1200x600.jpeg	547.5 KiB
www.sfsu.edu/sites/default/files/images/StudentServices_1200x800.jpeg	543.6 KiB
www.youtube.com/s/player/8456c9de/player_embed_es6.vflset/en_US/base.js	436.5 KiB
www.sfsu.edu/sites/default/files/images/ConductResearch_1200x600.jpeg	404.0 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
Ashley Santiago `div.row > div.col-xs-12 > div > img.pl-component`	news.sfsu.edu/sites/default/files/images/AshleySantiago.png
Students gathering outside `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/CampusLife_1200x800.jpeg
design team collaborating `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/Academics_1200x800.jpeg
Students posing in front of the Golden Gate Bridge `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/Location_1200x800.jpeg
Student advising session `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/StudentServices_1200x800.jpeg
Academic program advising session `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/AcademicPrograms_1200x800.jpeg
Men's basketball players in a group clapping one another's hands `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/SFSU-Gator-Athletics-Basketball.JPG
A view from the stage at Commencement looking out at a crowded stadium `div.row > div.col-xs-12 > div > img.pl-component`	news.sfsu.edu/sites/default/files/images/commencement_1200x700.jpg
Lava heron sitting on rocks `div.row > div.col-xs-12 > div > img.pl-component`	/sites/default/files/images/LavaHeron_JackDumbacherandCAS...
A student wearing headphones works on a computer `div.row > div.col-xs-12 > div > img.pl-component`	/sites/default/files/images/Student in computer lab 1200 ...
Students meeting atop the Cesar Chavez Student Center `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/BeyondClassroom_1200x600.jpeg
Science student reaching for vial `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/ConductResearch_1200x600.jpeg
#10 `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/10_1.png
#20 `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/20_0.png
32% `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/32_0.png
San Francisco State University Logo `div.col-md-10 > div.row > div#logo > img.sfsu-logo`	/profiles/custom/sfstatedrupal/themes/custom/sfstatetempl...
Students in classroom `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/Affording_500x300.jpeg
Students walking through quad `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/NextChapter_500x300.jpeg
Students in classroom together `div.field--item > div.paragraph > div.field > img.pl-component`	www.sfsu.edu/sites/default/files/images/Apply_500x300.jpeg

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

●Layout shift culprits

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●User Timing marks and measures 6 user timings

●Avoid long main-thread tasks 19 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 100 ms

●Server Backend Latencies 360 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid large layout shifts 3 layout shifts found

○INP breakdown

○Avoid non-composited animations

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.

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
Search SF State Button `form#search-box > div.input-group > div.input-group-btn > button.btn`
Accessibility `div.col-md-3 > ul.list-unstyled > li > a`
Equity and Community Inclusion `div.col-md-3 > ul.list-unstyled > li > a`
Environment and Sustainability `div.col-md-3 > ul.list-unstyled > li > a`
Title IX `div.col-md-3 > ul.list-unstyled > li > a`
Privacy Policy `div.col-md-3 > ul.list-unstyled > li > a`
Annual Fire Safety Report PDF `div.col-md-3 > ul.list-unstyled > li > a`
Annual Safety Report (Clery) `div.col-md-3 > ul.list-unstyled > li > a`
Parenting Students `div.col-md-3 > ul.list-unstyled > li > a`
University Ombuds `div.col-md-3 > ul.list-unstyled > li > a`
Document Reader `div.col-md-3 > ul.list-unstyled > li > a`
WASC Accreditation `div.col-md-3 > ul.list-unstyled > li > a`

These items highlight common accessibility best practices.

○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

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Buttons have an accessible name

●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.

●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

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

●`<frame>` or `<iframe>` elements have a title

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●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

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements have accessible names

○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 an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○`[role]`s are contained by their required parent element

○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

○`<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.

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

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

○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.

○Elements with visible text labels have matching accessible names.

○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
AttributionReporting	connect.facebook.net/en_US/fbevents.js line 279, col 769

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source	Description
bcp.crwdcntrl.net/map/c=7625/tp=SIMP/tpid=9A6E8A04CA0C4B7892E8D9F568AD20E7	`Failed to load resource: the server responded with a status of 404 ()`
idsync.rlcdn.com/419566.gif?partner_uid=0129E417B03A4824A8AEF643F63A92A8	`Failed to load resource: the server responded with a status of 451 ()`

●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 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`