Lighthouse Desktop
· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.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.
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
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.
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.
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.
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.
Performance issues directly impact user engagement and conversion rates.
A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
department of education seal and office div.field > div.node-ed-press-release > div.field--name-field-ed-featured-image > img | www.ed.gov/themes/custom/edgov/assets/images/ed-default-img.png | 496.1 KiB | 435.6 KiB |
Visit the What Works Clearinghouse
ED Ribbon Link
Resources for your classroom div.paragraph > div.paragraph__column > div.ed-ribbon-cta > div.ed-ribbon-image | www.ed.gov/themes/custom/edgov/images/ed-banner-bg.png | 63.1 KiB | 29.9 KiB |
div.node-ed-carousel > div.viewmode-carousel-wrapper > div.field > img div.node-ed-carousel > div.viewmode-carousel-wrapper > div.field > img | /sites/ed/files/styles/ed_carousel_480x480/public/2023-07... | 36.1 KiB | 18.6 KiB |
div.node-ed-carousel > div.viewmode-carousel-wrapper > div.field > img div.node-ed-carousel > div.viewmode-carousel-wrapper > div.field > img | /sites/ed/files/styles/ed_carousel_480x480/public/2024-02... | 22.1 KiB | 11.4 KiB |
div.node-ed-carousel > div.viewmode-carousel-wrapper > div.field > img div.node-ed-carousel > div.viewmode-carousel-wrapper > div.field > img | /sites/ed/files/styles/ed_carousel_480x480/public/2024-03... | 19.2 KiB | 9.9 KiB |
div.node-ed-carousel > div.viewmode-carousel-wrapper > div.field > img div.node-ed-carousel > div.viewmode-carousel-wrapper > div.field > img | /sites/ed/files/styles/ed_carousel_480x480/public/2024-09... | 10.4 KiB | 5.4 KiB |
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Duration |
|---|---|---|
| /sites/ed/files/css/css_QuAOjfZ3TyBbpQHXoYYYXkINWr3c-Tn-e... | 109.2 KiB | 162 ms |
| /sites/ed/files/css/css_O0AjzJR3_6XenW7gZTGX61EnmMJgdCi-g... | 9.8 KiB |
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| ed.gov/ | 206 ms |
| www.ed.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.
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /sites/ed/files/css/css_QuAOjfZ3TyBbpQHXoYYYXkINWr3c-Tn-e... | 108.4 KiB | 100.5 KiB |
| .fba-modal-dialog { font-family: Source Sans Pro Web, Helvetica Neue, Helvetica, Roboto, Arial, sa… } … | 52.1 KiB | 49.7 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.googletagmanager.com/gtag/js?id=G-TTBYENS3X0 | 153.2 KiB | 105.4 KiB |
| www.googletagmanager.com/gtag/js?id=G-TTBYENS3X0&cx=c>m=4e64h1 | 153.2 KiB | 61.5 KiB |
| /sites/ed/files/js/js_fX8zlc3RraPD6JwRP_LnFmKfdZK5L2C0I0S... | 161.0 KiB | 61.0 KiB |
| www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L | 147.2 KiB | 59.2 KiB |
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| .fba-modal-dialog { font-family: Source Sans Pro Web, Helvetica Neue, Helvetica, Roboto, Arial, sa… } … | 52.1 KiB | 5.6 KiB |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Performance issues directly impact user engagement and conversion rates.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
department of education seal and office div.field > div.node-ed-press-release > div.field--name-field-ed-featured-image > img | www.ed.gov/themes/custom/edgov/assets/images/ed-default-img.png |
Agency logo div.grid-row > div.usa-footer__logo-bottom > div.usa-footer__logo-image > img.usa-footer__logo-img | www.ed.gov/themes/custom/edgov/logo-footer2.svg |
Department of Education logo header > h1#fba-form-title-8e6a61eb > div.margin-bottom-2 > img.form-header-logo-square | /uploads/form/logo/5819/logo_square_Seal_of_the_United_St... |
Home div#logo > em.usa-logo__text > a.logo-img > img | www.ed.gov/themes/custom/edgov/logo.svg |
header.usa-banner__header > div.usa-banner__inner > div.grid-col-auto > img.usa-banner__header-flag header.usa-banner__header > div.usa-banner__inner > div.grid-col-auto > img.usa-banner__header-flag | www.ed.gov/themes/custom/edgov/assets/uswds/images/us_flag_small.png |
U.S. flag footer.usa-banner__header > div.usa-banner__inner > div.grid-col-auto > img.usa-banner__header-flag | touchpoints.app.cloud.gov/img/us_flag_small.png |
Facebook Es div.usa-footer__social-links > div.grid-col-auto > a > img | www.ed.gov/themes/custom/edgov/images/icons/facebook-es.svg |
Facebook div.usa-footer__social-links > div.grid-col-auto > a > img | www.ed.gov/themes/custom/edgov/images/icons/facebook.svg |
Instagram div.usa-footer__social-links > div.grid-col-auto > a > img | www.ed.gov/themes/custom/edgov/images/icons/instagram.svg |
LinkedIn div.usa-footer__social-links > div.grid-col-auto > a > img | www.ed.gov/themes/custom/edgov/images/icons/LinkedIn.svg |
Twitter div.usa-footer__social-links > div.grid-col-auto > a > img | www.ed.gov/themes/custom/edgov/images/icons/twitter.svg |
Flickr div.usa-footer__social-links > div.grid-col-auto > a > img | www.ed.gov/themes/custom/edgov/images/icons/flickr.svg |
Youtube div.usa-footer__social-links > div.grid-col-auto > a > img | www.ed.gov/themes/custom/edgov/images/icons/youtube.svg |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Learn About the Department of Education div.field > div.usa-card > div.border-width-0 > h4 |
These are opportunities to improve keyboard navigation in your application.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
U.S. Department of Education div.region > div#logo > em.usa-logo__text > a |
View our latest blog posts div.ed-ribbon-link > div.field > div.field__item > a |
Resources for your classroom div.ed-ribbon-link > div.field > div.field__item > a |
Best Practices
General
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
Performance issues directly impact user engagement and conversion rates.
| Source | Description |
|---|---|
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L line 203, col 390 | Connecting to 'https://region1.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L>m=45je64h1v9131934939za200zd9131934939&_p=1776798125141&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=478019218.1776798125&frm=0&pscdl=noapi&rcb=5&sr=800x600&uaa=x86&uab=64&uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938465~115938468~117266401&dl=https%3A%2F%2Fed.gov%2F&dt=Home%20%7C%20U.S.%20Department%20of%20Education&dr=&sid=1776798125&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.agency=ED&ep.subagency=OCO&ep.site_topic=unspecified%3Aed.gov&ep.site_platform=unspecified%3Aed.gov&ep.script_source=https%3A%2F%2Fdap.digitalgov.gov%2Funiversal-federated-analytics-min.js&ep.version=20250702%20v8.7%20-%20ga4&ep.protocol=https%3A&ep.using_parallel_tracker=pga4&ep.hostname_dimension=ed.gov&tfd=936' violates the following Content Security Policy directive: "connect-src 'self' https://*.clarity.ms https://touchpoints.app.cloud.gov https://www.google-analytics.com https://dap.digitalgov.gov https://metrics.articulate.com". The action has been blocked. |
www.googletagmanager.com/gtag/js?id=G-TTBYENS3X0&cx=c>m=4e64h1 line 236, col 390 | Connecting to 'https://region1.google-analytics.com/g/collect?v=2&tid=G-TTBYENS3X0>m=45je64h1v9123566942za200zb9131934939zd9131934939&_p=1776798125141&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=478019218.1776798125&frm=0&pscdl=noapi&rcb=0&sr=800x600&uaa=x86&uab=64&uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115616985~115938465~115938468~117266401~117884344~118463261&dl=https%3A%2F%2Fed.gov%2F&dt=Home%20%7C%20U.S.%20Department%20of%20Education&dr=&sid=1776798125&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_ss=1&_ee=1&tfd=1064' violates the following Content Security Policy directive: "connect-src 'self' https://*.clarity.ms https://touchpoints.app.cloud.gov https://www.google-analytics.com https://dap.digitalgov.gov https://metrics.articulate.com". The action has been blocked. |
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L line 203, col 390 | Fetch API cannot load https://region1.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L>m=45je64h1v9131934939za200zd9131934939&_p=1776798125141&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=478019218.1776798125&frm=0&pscdl=noapi&rcb=5&sr=800x600&uaa=x86&uab=64&uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938465~115938468~117266401&dl=https%3A%2F%2Fed.gov%2F&dt=Home%20%7C%20U.S.%20Department%20of%20Education&dr=&sid=1776798125&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.agency=ED&ep.subagency=OCO&ep.site_topic=unspecified%3Aed.gov&ep.site_platform=unspecified%3Aed.gov&ep.script_source=https%3A%2F%2Fdap.digitalgov.gov%2Funiversal-federated-analytics-min.js&ep.version=20250702%20v8.7%20-%20ga4&ep.protocol=https%3A&ep.using_parallel_tracker=pga4&ep.hostname_dimension=ed.gov&tfd=936. Refused to connect because it violates the document's Content Security Policy. |
www.googletagmanager.com/gtag/js?id=G-TTBYENS3X0&cx=c>m=4e64h1 line 236, col 390 | Fetch API cannot load https://region1.google-analytics.com/g/collect?v=2&tid=G-TTBYENS3X0>m=45je64h1v9123566942za200zb9131934939zd9131934939&_p=1776798125141&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=478019218.1776798125&frm=0&pscdl=noapi&rcb=0&sr=800x600&uaa=x86&uab=64&uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115616985~115938465~115938468~117266401~117884344~118463261&dl=https%3A%2F%2Fed.gov%2F&dt=Home%20%7C%20U.S.%20Department%20of%20Education&dr=&sid=1776798125&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_ss=1&_ee=1&tfd=1064. Refused to connect because it violates the document's Content Security Policy. |
Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.
Performance issues directly impact user engagement and conversion rates.
| Issue type |
|---|
| Content security policy |
Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.
Performance issues directly impact user engagement and conversion rates.
SEO
These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.
Content Best Practices
Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.
Performance issues directly impact user engagement and conversion rates.
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
Performance issues directly impact user engagement and conversion rates.
| Link destination | Link Text |
|---|---|
| www.ed.gov/about/initiatives/president-trumps-first-year-education-america | Learn more |
| www.ed.gov/about/initiatives/returning-education-states | Learn more |
Format your HTML in a way that enables crawlers to better understand your app’s content.