Lighthouse Mobile
· 0 checks — Mobile 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.
Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.
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.
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_ApV8g-YevBKRd4svErH9rX3LF0Qmr9Fub... | 13.7 KiB | |
| /sites/ed/files/css/css_Nd982RyHoH3he70bbY2WEdD-6AhMd2Tfc... | 102.8 KiB | 971 ms |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| /laws-and-policy/hearings-and-appeals/hearings-and-appeal... | 2.2 s |
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.
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.
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_Nd982RyHoH3he70bbY2WEdD-6AhMd2Tfc... | 102.0 KiB | 98.6 KiB |
| .fba-modal-dialog { font-family: Source Sans Pro Web, Helvetica Neue, Helvetica, Roboto, Arial, sa… } … | 52.1 KiB | 49.9 KiB |
| /sites/ed/files/css/css_ApV8g-YevBKRd4svErH9rX3LF0Qmr9Fub... | 12.9 KiB | 11.4 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /sites/ed/files/js/js_Wj2Sq2NoiwFGbdEFsMziHOlziEFZW7S4g8a... | 1.2 MiB | 708.2 KiB |
| www.googletagmanager.com/gtag/js?id=G-TTBYENS3X0 | 167.4 KiB | 115.7 KiB |
| www.googletagmanager.com/gtag/js?id=G-TTBYENS3X0&cx=c>m=4e6ad1 | 167.4 KiB | 68.6 KiB |
| www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L | 161.5 KiB | 66.3 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Total CPU Time | Script Evaluation | Script Parse |
|---|---|---|---|
| /sites/ed/files/js/js_Wj2Sq2NoiwFGbdEFsMziHOlziEFZW7S4g8a... | 1.5 s | 763 ms | 311 ms |
| Unattributable | 600 ms | 29 ms | 0.0 ms |
| /laws-and-policy/hearings-and-appeals/hearings-and-appeal... | 462 ms | 16 ms | 1.7 ms |
| www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L | 385 ms | 302 ms | 47 ms |
| scripts.clarity.ms/0.8.72-beta/clarity.js | 290 ms | 208 ms | 5.8 ms |
| www.googletagmanager.com/gtag/js?id=G-TTBYENS3X0&cx=c>m=4e6ad1 | 236 ms | 194 ms | 33 ms |
| /sites/ed/files/css/css_Nd982RyHoH3he70bbY2WEdD-6AhMd2Tfc... | 79 ms | 0.0 ms | 0.0 ms |
| www.googletagmanager.com/gtag/js?id=G-TTBYENS3X0 | 55 ms | 21 ms | 34 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
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Script Evaluation | 1.6 s |
| Other | 652 ms |
| Style & Layout | 573 ms |
| Script Parsing & Compilation | 435 ms |
| Parse HTML & CSS | 279 ms |
| Rendering | 116 ms |
| Garbage Collection | 68 ms |
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 | |
|---|---|
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.
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 |
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Displayed size | Actual size | Expected size | |
|---|---|---|---|---|
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... | 80 x 80 | 80 x 80 | 120 x 120 |
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 278, col 390 | Connecting to 'https://region1.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L>m=45je6ad1v9131934939za208zd9131934939xf1&_p=1792036151828&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&cid=2081588347.1792036152&frm=0&ngs=1&pscdl=noapi&rcb=0&sr=412x823&uaa=&uab=64&uafvl=Chromium%3B155.0.8059.39%7CNot(A%253ABrand%3B24.0.0.0&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=115616986~115938465~115938468~118897920~118897930~120213116~120385422~120412528~120469145~120469153~121246026~1212460...cretary-decisions&dt=Hearings%20and%20Appeals%3A%20Secretary%20Decisions%20%7C%20U.S.%20Department%20of%20Education&dr=&sid=1792036152&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.agency=ED&ep.subagency=OFO&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=20260107%20v8.8%20-%20ga4&ep.protocol=https%3A&ep.using_parallel_tracker=pga4&ep.hostname_dimension=ed.gov&tfd=2632' 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=4e6ad1 line 328, col 390 | Connecting to 'https://region1.google-analytics.com/g/collect?v=2&tid=G-TTBYENS3X0>m=45je6ad1v9123566942za208zb9131934939zd9131934939xf1&_p=1792036151828&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&cid=2081588347.1792036152&frm=0&ngs=1&pscdl=noapi&rcb=15&sr=412x823&uaa=&uab=64&uafvl=Chromium%3B155.0.8059.39%7CNot(A%253ABrand%3B24.0.0.0&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=115938465~115938469~118897920~118897930~120213116~120385422~120469145~120469153~121246026~121246034&dl=https%3A%2F%2Fed.gov%2Flaws-and-policy%2Fhearings-and-appeals%2Fhearings-and-appeals-secretary-decisions&dt=Hearings%20and%20Appeals%3A%20Secretary%20Decisions%20%7C%20U.S.%20Department%20of%20Education&dr=&sid=1792036152&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_ss=1&_ee=1&tfd=3442' 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. |
/sites/ed/files/js/js_Wj2Sq2NoiwFGbdEFsMziHOlziEFZW7S4g8a... line 416, col 2817 | Failed to decode advanced_settings: |
/sites/ed/files/js/js_Wj2Sq2NoiwFGbdEFsMziHOlziEFZW7S4g8a... line 416, col 2817 | Failed to decode advanced_settings: |
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L line 278, col 390 | Fetch API cannot load https://region1.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L>m=45je6ad1v9131934939za208zd9131934939xf1&_p=1792036151828&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&cid=2081588347.1792036152&frm=0&ngs=1&pscdl=noapi&rcb=0&sr=412x823&uaa=&uab=64&uafvl=Chromium%3B155.0.8059.39%7CNot(A%253ABrand%3B24.0.0.0&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=115616986~115938465~115938468~118897920~118897930~120213116~120385422~120412528~120469145~120469153~121246026~1212460...cretary-decisions&dt=Hearings%20and%20Appeals%3A%20Secretary%20Decisions%20%7C%20U.S.%20Department%20of%20Education&dr=&sid=1792036152&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.agency=ED&ep.subagency=OFO&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=20260107%20v8.8%20-%20ga4&ep.protocol=https%3A&ep.using_parallel_tracker=pga4&ep.hostname_dimension=ed.gov&tfd=2632. Refused to connect because it violates the document's Content Security Policy. |
www.googletagmanager.com/gtag/js?id=G-TTBYENS3X0&cx=c>m=4e6ad1 line 328, col 390 | Fetch API cannot load https://region1.google-analytics.com/g/collect?v=2&tid=G-TTBYENS3X0>m=45je6ad1v9123566942za208zb9131934939zd9131934939xf1&_p=1792036151828&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&cid=2081588347.1792036152&frm=0&ngs=1&pscdl=noapi&rcb=15&sr=412x823&uaa=&uab=64&uafvl=Chromium%3B155.0.8059.39%7CNot(A%253ABrand%3B24.0.0.0&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=115938465~115938469~118897920~118897930~120213116~120385422~120469145~120469153~121246026~121246034&dl=https%3A%2F%2Fed.gov%2Flaws-and-policy%2Fhearings-and-appeals%2Fhearings-and-appeals-secretary-decisions&dt=Hearings%20and%20Appeals%3A%20Secretary%20Decisions%20%7C%20U.S.%20Department%20of%20Education&dr=&sid=1792036152&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_ss=1&_ee=1&tfd=3442. 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.