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
www.nhtsa.gov/sites/nhtsa.gov/files/2026-03/GettyImages-2218505507.jpg	1209600.0 s	1.9 MiB
/lptag/api/account/10024689/configuration/applications/ta...	630.0 s	125.3 KiB
www.nhtsa.gov/sites/nhtsa.gov/files/2025-07/speeding-dog-thumbnail.png	1209600.0 s	709.2 KiB
va-s.c.liveperson.net/hcp/html/mTag.js?site=10024689	0.0 ms	14.4 KiB
lptag.liveperson.net/tag/tag.js?site=10024689	630.0 s	10.7 KiB
/Universal-Federated-Analytics-Min.js?agency=DOT&subagenc...	0.0 ms	9.4 KiB
/sites/nhtsa.gov/files/css/css_lIXrtWzTrE-AJGSPbCmGvnsBzQ...	1209600.0 s	93.1 KiB
c.amazon-adsystem.com/aat/amzn.js	0.0 ms	8.9 KiB
/sites/nhtsa.gov/files/js/js_VrvKcVrPfHIth6uxaJhc0hBAIjKE...	1209600.0 s	69.7 KiB
www.nhtsa.gov/akam/13/44415c6d	21600.0 s	9.4 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/site.js-DWD3GX-X.js	1209600.0 s	56.4 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/index-CAKoNdi9.js	1209600.0 s	54.4 KiB
dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js	0.0 ms	4.5 KiB
cse.google.com/cse.js?cx=412b86fa76cff431d	0.0 ms	3.7 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/images/bg-pattern-recalls.png	1209600.0 s	33.2 KiB
/sites/nhtsa.gov/files/styles/large/public/bicycle-safety...	1209600.0 s	24.2 KiB
lpcdn.lpsnmedia.net/gallery/libraries/chat/images/assets/live-chat.png	600.0 s	2.1 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/VINInformation-Cc7-8Q2v.js	1209600.0 s	13.3 KiB
va-s.c.liveperson.net/hc/s-10024689/?cmd=lpTagGetJsSnippets	0.0 ms	1.1 KiB
/hc/10024689/?&site=10024689&cmd=mTagKnockPage&lpCallId=9...	0.0 ms	1.1 KiB
www.google.com/cse/static/style/look/v6/default.css	3000.0 s	1.2 KiB
/1/c1904f93fe?a=30815701&sa=1&v=1044.a6554e7&t=Unnamed%20...	0.0 ms	678 B
/themes/custom/nhtsa_2024/dist/assets/VehicleManufacturer...	1209600.0 s	5.1 KiB
/sites/nhtsa.gov/files/css/css_d4Thf2DwKY0_wWFmprIiq2_vwW...	1209600.0 s	5.0 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/scss/icons/fonts/icomoon.woff2?sicns6	1209600.0 s	4.6 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/recaptcha-wrapper-BzJbmu7T.js	1209600.0 s	4.4 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/statistics-By3j4bK2.js	1209600.0 s	3.5 KiB
/themes/custom/nhtsa_2024/dist/assets/ComplaintsByKeyword...	1209600.0 s	3.2 KiB
/themes/custom/nhtsa_2024/dist/assets/NhtsaIdSearchModal-...	1209600.0 s	3.1 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/AssociatedItems-CB3UgVoG.js	1209600.0 s	2.6 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/utils-bzZKYqVv.js	1209600.0 s	2.6 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/images/NHTSA-logo-small-viewport.svg	1209600.0 s	2.4 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/utilities-CSULHrLM.js	1209600.0 s	2.2 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/SafetyIssue-B1UeAXy_.js	1209600.0 s	2.2 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/OTAUpdate-B1oXrO-i.js	1209600.0 s	1.8 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/video--ZD-UDB9.js	1209600.0 s	1.7 KiB
/themes/custom/nhtsa_2024/dist/assets/VehicleRecallsSearc...	1209600.0 s	1.6 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/GenericTable-C0TO41sf.js	1209600.0 s	1.6 KiB
/themes/custom/nhtsa_2024/dist/assets/CarSeatRecallsSearc...	1209600.0 s	1.3 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/reducer-DoqACwXX.js	1209600.0 s	1.3 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/TireRecallsSearch-ShzCTF3F.js	1209600.0 s	1.2 KiB
/themes/custom/nhtsa_2024/dist/assets/EquipmentRecallsSea...	1209600.0 s	1.2 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/GenericAPISearch-D4uCUNt8.js	1209600.0 s	1.2 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/utils-CT3Qb_tQ.js	1209600.0 s	1.1 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/images/DOT-logo.svg	1209600.0 s	1.1 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/utils-C-Ad8KrM.js	1209600.0 s	1.0 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/VINInformation-D04_KDLT.css	1209600.0 s	982 B
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/translations-UMrtBzjI.js	1209600.0 s	881 B
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/RemotePagination-CX-_OLck.js	1209600.0 s	858 B
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/index-CPX9qxIz.js	1209600.0 s	847 B
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/bySearch-BfbexjJ0.js	1209600.0 s	802 B
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/MemoryPagination-4nUkFfrX.js	1209600.0 s	796 B
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/bySearch-COfDlU0u.js	1209600.0 s	780 B
www.nhtsa.gov/themes/custom/nhtsa_2024/images/icon-https.svg	1209600.0 s	710 B
www.nhtsa.gov/themes/custom/nhtsa_2024/images/icon-dot-gov.svg	1209600.0 s	683 B
www.nhtsa.gov/themes/custom/nhtsa_2024/images/us_flag_small.png	1209600.0 s	649 B
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/VehicleImage-gO7fC-dl.js	1209600.0 s	642 B
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/index-CMdtM5kW.js	1209600.0 s	638 B
/themes/custom/nhtsa_2024/dist/assets/GenericTableSkeleto...	1209600.0 s	634 B
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/utils-zdvXAtYB.js	1209600.0 s	577 B
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/Loader-DoE-Lvdb.js	1209600.0 s	571 B
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/utils-D72hSFF3.js	1209600.0 s	568 B
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/date-SAt1IlAO.js	1209600.0 s	550 B
/themes/custom/nhtsa_2024/dist/assets/useScrollOnMetaUpda...	1209600.0 s	517 B
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/index-DVrU6MCT.js	1209600.0 s	406 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.

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/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	60 ms
fonts.gstatic.com/s/robotoslab/v36/BngMUXZYTXPIvIBgJJSb6ufN5qWr4xCC.woff2	55 ms
www.nhtsa.gov/themes/custom/nhtsa_2024/scss/icons/fonts/icomoon.woff2?sicns6	10 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
Nighttime scene showing a serious collision between two cars on a city street w… `div.row > header.col-md-5 > div.page-header--header-content > img.page-header--background`	www.nhtsa.gov/sites/nhtsa.gov/files/2026-03/GettyImages-2218505507.jpg	1.9 MiB	1.8 MiB
VIDEO SPOTLIGHT Speeding Catches Up With You Speed Prevention WATCH THE VIDE… `div.row > div.small-block-video-container > div#block-video > div#yt-poster`	www.nhtsa.gov/sites/nhtsa.gov/files/2025-07/speeding-dog-thumbnail.png	708.5 KiB	558.5 KiB
Car Seats and Booster Seats Car seats and booster seats provide protection for… `div#block-nhtsa-2024-content > article.node-type-landing-page > div > div#79881`	www.nhtsa.gov/themes/custom/nhtsa_2024/images/bg-pattern-recalls.png	32.9 KiB	26.4 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: Nighttime scene showing a serious collision between two cars on a city street w…

path: 1,HTML,1,BODY,1,DIV,1,DIV,1,MAIN,0,ARTICLE,0,DIV,0,ARTICLE,1,DIV,1,ARTICLE,0,DIV,0,DIV,0,HEADER,0,DIV,0,IMG

selector: div.row > header.col-md-5 > div.page-header--header-content > img.page-header--background

snippet: <img class="page-header--background" loading="lazy" src="/sites/nhtsa.gov/files/2026-03/GettyImages-2218505507.jpg" alt="Nighttime scene showing a serious collision between two cars on a city str…" role="presentation">

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
/css?family=Roboto+Condensed:400,400i,700,700i\|Roboto+Sla...	3.0 KiB	835 ms
/sites/nhtsa.gov/files/css/css_d4Thf2DwKY0_wWFmprIiq2_vwW...	5.0 KiB
/sites/nhtsa.gov/files/css/css_lIXrtWzTrE-AJGSPbCmGvnsBzQ...	93.1 KiB	1.1 s

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: 1.2 s

URL	Time Spent
nhtsa.gov/	1.2 s
www.nhtsa.gov/	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

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: 600 ms 85.5 KiB

URL	Transfer Size	Est Savings
/sites/nhtsa.gov/files/css/css_lIXrtWzTrE-AJGSPbCmGvnsBzQ...	92.8 KiB	85.5 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: 1.7 s 865.4 KiB

URL	Transfer Size	Est Savings
/le_unified_window/10.47.0-release_2318786578/mobileEmbed...	262.8 KiB	180.5 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L	147.1 KiB	105.7 KiB
www.googletagmanager.com/gtag/js?id=G-XBMX551X8B&cx=c&gtm=4e64h1	178.5 KiB	69.2 KiB
/gtm.js?id=GTM-MNKBZB4&gtm_auth=7b5hIVuHXBG0CUv53KOovg&gt...	179.9 KiB	68.1 KiB
/cse/static/element/b33cba5881f68fbf/cse_element__es.js?u...	98.6 KiB	66.7 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e64h1h1	147.1 KiB	62.4 KiB
www.googletagmanager.com/gtag/js?id=G-7HKD9QFL00	151.6 KiB	60.9 KiB
/sites/nhtsa.gov/files/js/js_VrvKcVrPfHIth6uxaJhc0hBAIjKE...	69.4 KiB	53.4 KiB
/cse/static/element/b33cba5881f68fbf/cse_element__es.js?u...	98.6 KiB	48.7 KiB
/lptag/api/account/10024689/configuration/applications/ta...	114.7 KiB	47.6 KiB
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/site.js-DWD3GX-X.js	56.1 KiB	35.9 KiB
cse.google.com/adsense/search/async-ads.js	43.3 KiB	34.7 KiB
cse.google.com/adsense/search/async-ads.js	43.3 KiB	31.5 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.nhtsa.gov/	858 ms	149 ms	5.7 ms
Unattributable	750 ms	124 ms	0.0 ms
www.googletagmanager.com/gtag/js?id=G-XBMX551X8B&cx=c&gtm=4e64h1	404 ms	349 ms	50 ms
/gtm.js?id=GTM-MNKBZB4&gtm_auth=7b5hIVuHXBG0CUv53KOovg&gt...	364 ms	309 ms	48 ms
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e64h1h1	306 ms	275 ms	30 ms
www.googletagmanager.com/gtag/js?id=G-7HKD9QFL00	262 ms	210 ms	51 ms
www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/index-CAKoNdi9.js	174 ms	149 ms	0.9 ms
/le_unified_window/10.47.0-release_2318786578/mobileEmbed...	153 ms	59 ms	93 ms
/cse/static/element/b33cba5881f68fbf/cse_element__es.js?u...	144 ms	51 ms	90 ms
cse.google.com/cse.js?cx=412b86fa76cff431d	120 ms	106 ms	3.3 ms
/lptag/api/account/10024689/configuration/applications/ta...	114 ms	82 ms	29 ms
www.nhtsa.gov/akam/13/44415c6d	114 ms	103 ms	4.2 ms
/sites/nhtsa.gov/files/js/js_VrvKcVrPfHIth6uxaJhc0hBAIjKE...	104 ms	77 ms	18 ms
/le_secure_storage/3.36.1-release_2314911046/storage.secu...	87 ms	74 ms	4.9 ms
cse.google.com/adsense/search/async-ads.js	59 ms	27 ms	31 ms
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L	57 ms	25 ms	32 ms
/sites/nhtsa.gov/files/css/css_lIXrtWzTrE-AJGSPbCmGvnsBzQ...	54 ms	0.0 ms	0.0 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	2.4 s
Other	915 ms
Script Parsing & Compilation	521 ms
Style & Layout	424 ms
Rendering	96 ms
Garbage Collection	89 ms
Parse HTML & CSS	67 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 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 2.8 KiB

URL	Transfer Size	Est Savings
www.google.com/cse/static/element/b33cba5881f68fbf/default_v6+es.css	9.7 KiB	2.8 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.nhtsa.gov/sites/nhtsa.gov/files/2026-03/GettyImages-2218505507.jpg	1.9 MiB
www.nhtsa.gov/sites/nhtsa.gov/files/2025-07/speeding-dog-thumbnail.png	709.2 KiB
/le_unified_window/10.47.0-release_2318786578/mobileEmbed...	263.2 KiB
/gtm.js?id=GTM-MNKBZB4&gtm_auth=7b5hIVuHXBG0CUv53KOovg&gt...	180.0 KiB
www.googletagmanager.com/gtag/js?id=G-XBMX551X8B&cx=c&gtm=4e64h1	178.5 KiB
www.googletagmanager.com/gtag/js?id=G-7HKD9QFL00	151.9 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L	147.1 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e64h1h1	147.1 KiB
/lptag/api/account/10024689/configuration/applications/ta...	125.3 KiB
/cse/static/element/b33cba5881f68fbf/cse_element__es.js?u...	98.7 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
National Highway Traffic Safety Administration `nav.navbar > div.container-fluid > a.navbar-brand > img`	www.nhtsa.gov/themes/custom/nhtsa_2024/images/NHTSA-logo-small-viewport.svg
National Highway Traffic Safety Administration `div.max-width > div.row > div.col-lg-3 > img.footer-site--nhtsa-logo`	www.nhtsa.gov/themes/custom/nhtsa_2024/images/NHTSA-logo-small-viewport.svg
button.usa-banner__header-action > header.usa-banner__header > div.usa-banner__inner > img.usa-banner__header-flag `button.usa-banner__header-action > header.usa-banner__header > div.usa-banner__inner > img.usa-banner__header-flag`	www.nhtsa.gov/themes/custom/nhtsa_2024/images/us_flag_small.png

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

●Layout shift culprits

●Optimize DOM size

●Forced reflow

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify JavaScript

●User Timing marks and measures 22 user timings

●Avoid long main-thread tasks 17 long tasks found

●Avoid non-composited animations 8 animated elements found

●Network Requests

●Network Round Trip Times 150 ms

●Server Backend Latencies 610 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 150 ms

●Avoid large layout shifts 2 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.

ARIA

Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn more about valid values for ARIA attributes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Vehicle `div.topic--nested-contents > ul.nav > li.nav-item > button#vehicle-button`

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Contrast

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Menu `nav.navbar > div.container-fluid > button.navbar-toggler > span.icon-copy`

These are opportunities to improve the legibility of your content.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Have a safety problem? `div.container-fluid > div.row > div.col-md-6 > h4.call-to-action--heading`
Kick off Warmer Weather with Bicycle Safety Tips `div.col-md-6 > div.news--teaser-item > a.text-black > h4`
Takata Air Bags `article.row > div.col-md-7 > div.home--recalls-copy-content > h3`
LEARN ABOUT NHTSA `div.col-md-6 > div.row > div.col-sm-12 > h4`

These are opportunities to improve keyboard navigation in your application.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.row > div.col-12 > div.recall-alert--links > a.link-arrow `div.row > div.col-12 > div.recall-alert--links > a.link-arrow`

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Best practices

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
888-327-4236 `div.col-lg-3 > div.footer-site--tel-links-container > span > a`

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
Toggle navigation Menu `header#site-header > nav.navbar > div.container-fluid > button.navbar-toggler`

○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 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.

●Select elements have associated label elements.

●`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

●Links are distinguishable without relying on color.

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

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Uses ARIA roles only on compatible elements

○`[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

○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

○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.

○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 natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Displayed size	Actual size	Expected size
Live chat `body.page-98366 > div#LPMcontainer-1776803743942-0 > img#LPMimage-1776803743943-1`	lpcdn.lpsnmedia.net/gallery/libraries/chat/images/assets/live-chat.png	31 x 135	31 x 135	47 x 203

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	www.nhtsa.gov/themes/custom/nhtsa_2024/dist/assets/site.js-DWD3GX-X.js line 15, col 4733
Unload event listeners are deprecated and will be removed.	www.nhtsa.gov/ line 1470, col 11486

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
trackit.ktxlytics.io/ktxevents.v1.js	`Failed to load resource: net::ERR_NAME_NOT_RESOLVED`

●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

●Page has the HTML doctype

●Properly defines charset

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●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

○Use a strong HSTS policy

○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

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

○robots.txt is valid