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Lighthouse Desktop

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

Audit breakdown by category with detailed findings.

69

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.

RequestCache TTLTransfer Size
/mhv-portal-web/o/mhv-portal-theme/fonts/fontawesome/fa-s...0.0 ms77.1 KiB
/mhv-portal-web/combo?browserId=other&minifierType=js&lan...0.0 ms75.6 KiB
/mhv-portal-web/combo?browserId=other&minifierType=js&lan...0.0 ms73.1 KiB
/mhv-portal-web/combo?browserId=other&minifierType=js&lan...0.0 ms70.3 KiB
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...0.0 ms50.8 KiB
/mhv-portal-web/combo?browserId=other&minifierType=js&lan...0.0 ms34.6 KiB
/mhv-portal-web/o/mhv-portal-theme/fonts/source-sans-pro/...0.0 ms20.9 KiB
/mhv-portal-web/o/mhv-portal-theme/fonts/source-sans-pro/...0.0 ms20.7 KiB
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...0.0 ms14.0 KiB
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...0.0 ms12.0 KiB
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...0.0 ms11.4 KiB
/mhv-portal-web/o/frontend-theme-font-awesome-web/css/mai...0.0 ms9.9 KiB
/Universal-Federated-Analytics-Min.js?ver=true&agency=VA&...0.0 ms9.4 KiB
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...0.0 ms5.8 KiB
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...0.0 ms4.9 KiB
www.myhealth.va.gov/mhv-portal-web/o/mhv-portal-theme/images/VCL-icon-white.svg0.0 ms2.8 KiB
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...0.0 ms2.7 KiB
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...0.0 ms2.7 KiB
www.myhealth.va.gov/mhv-portal-web/o/mhv-portal-theme/images/info.svg0.0 ms2.5 KiB
www.myhealth.va.gov/mhv-portal-web/o/mhv-portal-theme/images/close-white.svg0.0 ms2.0 KiB
www.myhealth.va.gov/mhv-portal-web/o/mhv-portal-theme/images/icon-dot-gov.svg0.0 ms1.4 KiB
www.myhealth.va.gov/mhv-portal-web/o/mhv-portal-theme/images/icon-https.svg0.0 ms1.4 KiB
/mhv-portal-web/o/mhv-portal-theme/images/arrow-right-whi...0.0 ms1.2 KiB
/mhv-portal-web/o/mhv-portal-theme/images/angle-arrow-dow...0.0 ms1.2 KiB
/mhv-portal-web/o/mhv-portal-theme/images/arrow-down-whit...0.0 ms1.1 KiB
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...0.0 ms974 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.

URLEst Savings
/mhv-portal-web/o/mhv-portal-theme/fonts/fontawesome/fa-s...275 ms
/mhv-portal-web/o/mhv-portal-theme/fonts/source-sans-pro/...200 ms
/mhv-portal-web/o/mhv-portal-theme/fonts/source-sans-pro/...165 ms

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
value: No additional origins are good candidates for preconnecting

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
/mhv-portal-web/o/mhv-portal-theme/js/datatables-2.1.6.mi...46.1 KiB400 ms
/mhv-portal-web/o/mhv-portal-theme/js/security-fixes.js?m...1.5 KiB200 ms
/mhv-portal-web/o/mhv-portal-theme/js/mhv.min.js?mhvv=202...5.4 KiB200 ms
/mhv-portal-web/combo?browserId=other&minifierType=js&lan...75.6 KiB600 ms
/mhv-portal-web/o/mhv-portal-theme/js/jquery-ui-1.13.2.mi...66.9 KiB480 ms
/mhv-portal-web/o/mhv-portal-theme/css/main.css?browserId...217.4 KiB1.3 s
/mhv-portal-web/o/mhv-portal-theme/js/jquery.touchSwipe-1...5.8 KiB200 ms
/mhv-portal-web/o/mhv-portal-theme/js/jquery-3.7.1.min.js...30.5 KiB360 ms
/mhv-portal-web/combo?browserId=other&minifierType=&theme...2.5 KiB200 ms
/mhv-portal-web/combo?browserId=other&minifierType=js&lan...73.1 KiB600 ms
/mhv-portal-web/combo?browserId=other&minifierType=js&lan...34.6 KiB360 ms
www.myhealth.va.gov/mhv-portal-web/o/js_bundle_config?t=17776001434844.0 KiB200 ms
/mhv-portal-web/combo?browserId=other&minifierType=js&lan...70.3 KiB560 ms
www.myhealth.va.gov/mhv-portal-web/o/js_loader_config?t=17776001302021.1 KiB200 ms
/mhv-portal-web/o/mhv-portal-theme/css/clay.css?browserId...89.5 KiB760 ms
/mhv-portal-web/o/change-tracking-change-lists-indicator-...1.4 KiB200 ms
/mhv-portal-web/o/journal-content-web/css/main.css?browse...1.5 KiB200 ms
/mhv-portal-web/o/staging-bar-web/css/main.css?browserId=...1.9 KiB200 ms
/mhv-portal-web/o/com.liferay.product.navigation.user.per...1.0 KiB200 ms
/mhv-portal-web/o/portal-search-web/css/main.css?browserI...1.2 KiB200 ms
/mhv-portal-web/o/frontend-css-web/main.css?browserId=oth...15.7 KiB360 ms
/mhv-portal-web/o/site-navigation-menu-web/css/main.css?b...884 B200 ms
/mhv-portal-web/o/asset-publisher-web/css/main.css?browse...1.7 KiB280 ms
www.myhealth.va.gov/ruxitagentjs_ICA7NVfgqrux_10335260306043831.js81.7 KiB640 ms
/mhv-portal-web/o/announcements-web/announcements/css/mai...1.0 KiB280 ms
/mhv-portal-web/o/product-navigation-product-menu-web/css...1.7 KiB280 ms
/mhv-portal-web/o/frontend-theme-font-awesome-web/css/mai...9.9 KiB240 ms
/mhv-portal-web/o/frontend-css-web/portal/aui_deprecated....6.3 KiB200 ms
/Universal-Federated-Analytics-Min.js?ver=true&agency=VA&...9.4 KiB260 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.

URLResource SizeEst Savings
div.asset-abstract > div.asset-content > div.asset-summary > div.aspect-ratio div.asset-abstract > div.asset-content > div.asset-summary > div.aspect-ratio
/mhv-portal-web/documents/314545/444503/try-appointments-...160.7 KiB147.0 KiB
div.asset-abstract > div.asset-content > div.asset-summary > div.aspect-ratio div.asset-abstract > div.asset-content > div.asset-summary > div.aspect-ratio
/mhv-portal-web/documents/314545/444503/Try-Messages-on-V...157.5 KiB143.8 KiB
div.asset-abstract > div.asset-content > div.asset-summary > div.aspect-ratio div.asset-abstract > div.asset-content > div.asset-summary > div.aspect-ratio
/mhv-portal-web/documents/314545/0/try-medical-records.pn...122.0 KiB108.3 KiB
Go to My HealtheVet div.va-header-logo-wrapper > em.usa-logo__text > a#mhv-logo-a > img#mhv-logo-img
/mhv-portal-web/o/mhv-portal-theme/images/MHVLogoWhite-14...6.0 KiB4.9 KiB

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLProtocol
www.myhealth.va.gov/mhv-portal-web/homehttp/1.1
www.myhealth.va.gov/ruxitagentjs_ICA7NVfgqrux_10335260306043831.jshttp/1.1
/mhv-portal-web/o/frontend-theme-font-awesome-web/css/mai...http/1.1
/mhv-portal-web/combo?browserId=other&minifierType=js&lan...http/1.1
/mhv-portal-web/o/mhv-portal-theme/css/clay.css?browserId...http/1.1
/mhv-portal-web/o/frontend-css-web/main.css?browserId=oth...http/1.1
/mhv-portal-web/o/asset-publisher-web/css/main.css?browse...http/1.1
/mhv-portal-web/o/announcements-web/announcements/css/mai...http/1.1
/mhv-portal-web/o/product-navigation-product-menu-web/css...http/1.1
/mhv-portal-web/o/site-navigation-menu-web/css/main.css?b...http/1.1
/mhv-portal-web/o/portal-search-web/css/main.css?browserI...http/1.1
/mhv-portal-web/o/com.liferay.product.navigation.user.per...http/1.1
/mhv-portal-web/o/staging-bar-web/css/main.css?browserId=...http/1.1
/mhv-portal-web/o/journal-content-web/css/main.css?browse...http/1.1
www.myhealth.va.gov/mhv-portal-web/o/js_loader_config?t=1777600130202http/1.1
/mhv-portal-web/combo?browserId=other&minifierType=js&lan...http/1.1
/mhv-portal-web/combo?browserId=other&minifierType=js&lan...http/1.1
/mhv-portal-web/combo?browserId=other&minifierType=js&lan...http/1.1
www.myhealth.va.gov/mhv-portal-web/o/js_bundle_config?t=1777600143484http/1.1
/mhv-portal-web/combo?browserId=other&minifierType=&theme...http/1.1
/mhv-portal-web/o/mhv-portal-theme/css/main.css?browserId...http/1.1
/mhv-portal-web/o/change-tracking-change-lists-indicator-...http/1.1
/mhv-portal-web/o/mhv-portal-theme/js/jquery-3.7.1.min.js...http/1.1
/mhv-portal-web/o/mhv-portal-theme/js/jquery-ui-1.13.2.mi...http/1.1
/mhv-portal-web/o/mhv-portal-theme/js/jquery.touchSwipe-1...http/1.1
/mhv-portal-web/o/mhv-portal-theme/js/datatables-2.1.6.mi...http/1.1
/mhv-portal-web/o/mhv-portal-theme/js/mhv.min.js?mhvv=202...http/1.1
/mhv-portal-web/o/mhv-portal-theme/js/security-fixes.js?m...http/1.1
www.myhealth.va.gov/mhv-portal-web/o/mhv-portal-theme/images/us_flag_small.pnghttp/1.1
www.myhealth.va.gov/mhv-portal-web/o/mhv-portal-theme/images/icon-dot-gov.svghttp/1.1
www.myhealth.va.gov/mhv-portal-web/o/mhv-portal-theme/images/icon-https.svghttp/1.1
/mhv-portal-web/o/mhv-portal-theme/images/arrow-right-whi...http/1.1
/mhv-portal-web/o/mhv-portal-theme/images/MHVLogoWhite-14...http/1.1
www.myhealth.va.gov/mhv-portal-web/o/mhv-portal-theme/images/close-white.svghttp/1.1
/mhv-portal-web/o/mhv-portal-theme/js/uswds-3.7.1.min.js?...http/1.1
/mhv-portal-web/o/mhv-portal-theme/js/main.js?browserId=o...http/1.1
/mhv-portal-web/o/frontend-css-web/portal/aui_deprecated....http/1.1
/mhv-portal-web/o/mhv-portal-theme/images/angle-arrow-dow...http/1.1
www.myhealth.va.gov/mhv-portal-web/o/mhv-portal-theme/images/VCL-icon-white.svghttp/1.1
/mhv-portal-web/o/mhv-portal-theme/images/arrow-down-whit...http/1.1
/mhv-portal-web/o/mhv-portal-theme/fonts/source-sans-pro/...http/1.1
/mhv-portal-web/o/mhv-portal-theme/fonts/source-sans-pro/...http/1.1
www.myhealth.va.gov/mhv-portal-web/o/mhv-portal-theme/images/info.svghttp/1.1
/mhv-portal-web/home?p_p_state=maximized&p_p_mode=view&sa...http/1.1
/mhv-portal-web/documents/314545/444503/Try-Messages-on-V...http/1.1
/mhv-portal-web/documents/314545/0/try-medical-records.pn...http/1.1
/mhv-portal-web/documents/314545/444503/try-appointments-...http/1.1
/mhv-portal-web/o/mhv-portal-theme/fonts/fontawesome/fa-s...http/1.1
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...http/1.1
/mhv-portal-web/o/js_resolve_modules?modules=metal-dom%2F...http/1.1
/mhv-portal-web/o/js_resolve_modules?modules=frontend-js-...http/1.1
www.myhealth.va.gov/mhv-portal-web/o/mhv-portal-theme/images/vcl-logo.pnghttp/1.1
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...http/1.1
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...http/1.1
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...http/1.1
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...http/1.1
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...http/1.1
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...http/1.1
/mhv-portal-web/o/frontend-js-web/liferay/available_langu...http/1.1
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...http/1.1
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...http/1.1
www.myhealth.va.gov/mhv-portal-web/o/mhv-portal-theme/images/favicon.icohttp/1.1
/rb_65aa2f7a-2a1d-4836-9cfb-f98e8ba3af74?type=js3&sn=v_4_...http/1.1
/rb_65aa2f7a-2a1d-4836-9cfb-f98e8ba3af74?type=js3&sn=v_4_...http/1.1

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: 543 ms
URLTime Spent
www.myhealth.va.gov/543 ms
www.myhealth.va.gov/mhv-portal-web/home0.0 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

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: 80 ms 54.6 KiB
URLTransfer SizeEst Savings
/mhv-portal-web/o/mhv-portal-theme/css/main.css?browserId...217.4 KiB37.0 KiB
/mhv-portal-web/o/mhv-portal-theme/css/clay.css?browserId...89.5 KiB15.4 KiB
/mhv-portal-web/o/frontend-css-web/main.css?browserId=oth...15.7 KiB2.2 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: 210 ms 310.7 KiB
URLTransfer SizeEst Savings
/mhv-portal-web/o/mhv-portal-theme/css/main.css?browserId...216.6 KiB207.9 KiB
/mhv-portal-web/o/mhv-portal-theme/css/clay.css?browserId...88.6 KiB88.0 KiB
/mhv-portal-web/o/frontend-css-web/main.css?browserId=oth...14.8 KiB14.8 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: 80 ms 590.3 KiB
URLTransfer SizeEst Savings
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e6562147.0 KiB106.3 KiB
www.googletagmanager.com/gtag/js?id=G-YPB3FD0PQ9&cx=c&gtm=4e6562143.9 KiB63.0 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L147.0 KiB62.1 KiB
/gtm.js?id=GTM-WZ6MXMD&gtm_auth=EVfhr6k93Fl16jzaZVCafQ&gt...141.1 KiB61.6 KiB
/mhv-portal-web/combo?browserId=other&minifierType=js&lan...74.8 KiB59.3 KiB
/mhv-portal-web/o/mhv-portal-theme/js/jquery-ui-1.13.2.mi...66.0 KiB59.0 KiB
/mhv-portal-web/combo?browserId=other&minifierType=js&lan...69.5 KiB53.8 KiB
/mhv-portal-web/o/mhv-portal-theme/js/datatables-2.1.6.mi...45.2 KiB38.6 KiB
www.myhealth.va.gov/ruxitagentjs_ICA7NVfgqrux_10335260306043831.js81.3 KiB31.4 KiB
/mhv-portal-web/combo?browserId=other&minifierType=js&lan...33.8 KiB28.8 KiB
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...50.0 KiB26.5 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
Pages with cache-control:no-store header cannot enter back/forward cache.Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.Not 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 11.4 KiB
URLTransfer SizeEst Savings
/mhv-portal-web/combo/?browserId=other&minifierType=&lang...50.0 KiB11.4 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
Go to My HealtheVet div.va-header-logo-wrapper > em.usa-logo__text > a#mhv-logo-a > img#mhv-logo-img
/mhv-portal-web/o/mhv-portal-theme/images/MHVLogoWhite-14...
U.S. flag div.usa-accordion > div.usa-banner-header > div.usa-grid > img
www.myhealth.va.gov/mhv-portal-web/o/mhv-portal-theme/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
●Optimize viewport for mobile
●Max Potential First Input Delay 60 ms
●Avoids enormous network payloads Total size was 2,226 KiB
●JavaScript execution time 0.4 s
●Minimizes main-thread work 0.8 s
●Avoid long main-thread tasks 2 long tasks found
●Network Requests
●Network Round Trip Times 120 ms
●Server Backend Latencies 150 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 200 ms
●Avoid large layout shifts 3 layout shifts found
○INP breakdown
○LCP request discovery
○User Timing marks and measures
○Avoid non-composited animations
99

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.

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
VA Resources div.grid-row > div.mobile-lg:grid-col-6 > section.usa-footer__primary-content > h4.usa-footer__primary-link

These are opportunities to improve keyboard navigation in your application.

○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
●Buttons have an accessible name
●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.
●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
●`<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
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Skip links are focusable.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Elements with visible text labels have matching accessible names.
○`[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 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 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.
○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.
96

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.

URLDisplayed sizeActual sizeExpected size
U.S. flag div.usa-accordion > div.usa-banner-header > div.usa-grid > img
www.myhealth.va.gov/mhv-portal-web/o/mhv-portal-theme/images/us_flag_small.png21 x 1416 x 1121 x 14
●Uses HTTPS
●Avoids deprecated APIs
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●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
●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
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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