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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

13

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
www.uscis.gov/sites/default/files/images/home/Web_MASA_UPDATE_V6_EN_%402x.png2014768.0 s2.2 MiB
connect.facebook.net/en_US/bundle/sdk.js/1200.0 s77.8 KiB
www.uscis.gov/sites/default/files/images/home/Web_JoinUs_banner_1920x401.jpg1926876.0 s481.2 KiB
/sites/default/files/images/home/WEB_banner_trumpcard_192...2097791.0 s315.7 KiB
uscis.my.site.com/ESWOAISEmmaChannel1763090369120/assets/js/bootstrap.min.js23.0 s26.1 KiB
/sites/default/files/images/home/USCIS_Homepage_Research_...2097087.0 s262.8 KiB
/sites/default/files/images/home/USCIS_Homepage_Verify_48...1872584.0 s260.5 KiB
/sites/default/files/images/home/USCIS_Homepage_File-Onli...1887908.0 s240.4 KiB
/sites/default/files/images/home/USCIS_Homepage_Manage-Yo...1814772.0 s225.8 KiB
www.uscis.gov/sites/default/files/images/home/Web_ARR_banner_1920x401.jpg1931255.0 s187.7 KiB
/sites/default/files/images/home/Web Banner Graphic_USCIS...1872498.0 s177.1 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
/sites/default/files/js/js_FHMpXU29BX9aw_UrRAUqOs0RvT8iYQ...1925359.0 s153.4 KiB
www.uscis.gov/libraries/fontawesome/webfonts/fa-solid-900.woff21931250.0 s127.1 KiB
www.uscis.gov/sites/default/files/USCIS_Signature_Preferred_FC.png2086144.0 s107.8 KiB
www.dhs.gov/xlibrary/graphics/ntas_05_noadvisories.svg1572.0 s11.7 KiB
/Universal-Federated-Analytics-Min.js?agency=DHS&subagenc...0.0 ms9.4 KiB
/sites/default/files/css/css_rfeT5zDUAGxZm2aImPThrAPAvr1j...2585755.0 s97.1 KiB
siteimproveanalytics.com/js/siteanalyze_6342107.js86400.0 s18.5 KiB
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/c...1934657.0 s75.3 KiB
d2n4zfio24poj1.cloudfront.net/chatwidget/assets/message.wav604800.0 s72.0 KiB
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/c...1927312.0 s74.5 KiB
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/c...1930312.0 s74.0 KiB
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/c...1931255.0 s71.6 KiB
www.uscis.gov/libraries/fontawesome/js/all.min.js?td31e91755715.0 s68.2 KiB
s.go-mpulse.net/boomerang/A3WTK-PERZP-2W77L-XJ2AR-542NX604800.0 s59.5 KiB
d2n4zfio24poj1.cloudfront.net/chatwidget/assets/emmabutton.png604800.0 s56.9 KiB
dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js0.0 ms4.5 KiB
connect.facebook.net/en_US/sdk.js#xfbml=1&version=v17.01200.0 s5.1 KiB
/SIE/?Q_ZID=ZN_3WrTsyl9WWQdlxb3600.0 s4.8 KiB
service.force.com/embeddedservice/5.0/esw.min.js86400.0 s9.4 KiB
cse.google.com/cse.js?cx=a2ef8e2528658124e0.0 ms3.7 KiB
/dxjsmodule/12.1a2b7192fd54e87d3971.chunk.js?Q_CLIENTVERS...604800.0 s36.5 KiB
/sites/default/files/images/home/USCIS.Gov_KnowBeforeYouG...1938400.0 s36.8 KiB
www.uscis.gov/core/assets/vendor/jquery/jquery.min.js?v=4.0.0-rc.12086144.0 s27.2 KiB
/sites/default/files/js/js_6UJOHhAY2opn7jTwsrv-BbXHs_7OH_...2014767.0 s21.3 KiB
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/u...1886049.0 s20.3 KiB
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/u...1752939.0 s20.1 KiB
/dxjsmodule/37.7ea1ffe71ad8c0799cc1.chunk.js?Q_CLIENTVERS...604800.0 s19.2 KiB
www.uscis.gov/libraries/slick/slick/fonts/slick.woff1078.0 s1.6 KiB
www.uscis.gov/themes/contrib/dhs_uswds/logo.svg2051414.0 s13.8 KiB
www.google.com/cse/static/style/look/v6/default.css3000.0 s1.2 KiB
/sites/default/files/css/css_J4YXLmCIG9odtaYoqr3J_RLsYiSz...2585755.0 s5.0 KiB
www.uscis.gov/libraries/slick/slick/ajax-loader.gif2098173.0 s4.3 KiB
/v/t39.30808-1/474665644_1025093429663784_504250789393576...1209600.0 s2.9 KiB
www.dhs.gov/profiles/dhsd8_gov/modules/custom/dhs_ntas/css/dhs_ntas.ntas.css206228.0 s681 B
/modules/contrib/ckeditor_accordion/js/accordion.frontend...1931249.0 s1.8 KiB
www.uscis.gov/themes/contrib/dhs_uswds/img/social-icons/youtube.svg1931251.0 s1.6 KiB
www.uscis.gov/sites/default/files/images/site/icon-dot-gov@2x.png1755715.0 s1.2 KiB
www.uscis.gov/sites/default/files/images/site/icon-https@2x.png2138792.0 s1.2 KiB
www.uscis.gov/themes/contrib/dhs_uswds/img/social-icons/instagram.svg2077352.0 s1011 B
/sites/default/files/css/css_KbilO5DUhxf-Ggy2kq_Z40HUcAmS...2585755.0 s864 B
www.uscis.gov/themes/contrib/dhs_uswds/img/social-icons/email.svg1752940.0 s812 B
www.uscis.gov/modules/contrib/google_tag/js/gtag.js?td31e91833249.0 s814 B
www.uscis.gov/modules/contrib/google_tag/js/gtm.js?td31e91755715.0 s799 B
/sites/default/files/css/css_0KlzIS5g5fa5x8x_BKXL43CdOKgL...2585755.0 s800 B
/modules/contrib/uswds_ckeditor_integration/js/aftermarke...2062332.0 s764 B
www.uscis.gov/themes/contrib/dhs_uswds/img/social-icons/linkedin.svg1755715.0 s756 B
/themes/contrib/dhs_uswds/assets/uswds/img/usa-icons/clos...2062334.0 s762 B
/sites/default/files/css/css_q57gS3kRPeZVIqV_HfaUe0HYonJT...2585756.0 s770 B
/sites/default/files/asset_injector/js/pm_volume_13_temp-...1755715.0 s556 B
www.uscis.gov/themes/contrib/dhs_uswds/img/social-icons/facebook.svg1931246.0 s546 B
/sites/default/files/asset_injector/css/merriweather_font...2584430.0 s546 B
/sites/default/files/js/js_i_kZRbchSCzPzQw_qMOS-7NRKfFxHu...1755715.0 s508 B
/sites/default/files/js/js_ae2wwEP0sZpR7u41AAWVclgQ6XSmfo...1930312.0 s491 B
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/c...1842719.0 s484 B
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/u...1872478.0 s471 B
/sites/default/files/js/js_6H78LPsshwYMQl-Huh5Modst_9suyP...1755715.0 s460 B
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/u...2101461.0 s433 B
www.uscis.gov/sites/default/files/images/site/USFlag-Icon-2x.png1931249.0 s365 B

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.407075] map[node:map[boundingRect:map[bottom:4347 height:4162 left:0 right:412 top:185 width:412] lhId:page-9-DIV nodeLabel:Making America Safe Again USCIS is proud to support DHS efforts to Make Americ… path:1,HTML,1,BODY,1,DIV,0,DIV,3,DIV selector:body > div.dialog-off-canvas-main-canvas > div#page-wrapper > div#content-wrapper snippet:<div id="content-wrapper" class="one-col one-col--front"> type:node] score:0.407075] map[node:map[boundingRect:map[bottom:107 height:60 left:16 right:216 top:47 width:200] lhId:page-14-IMG nodeLabel:U.S. Department of Homeland Security Seal, U.S. Citizenship and Immigration Ser… path:1,HTML,1,BODY,1,DIV,0,DIV,1,HEADER,2,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,A,0,IMG selector:div#block-uscis-design-branding > div#home-logo > a > img snippet:<img src="/sites/default/files/USCIS_Signature_Preferred_FC.png" alt="U.S. Department of Homeland Security Seal, U.S. Citizenship and Immigratio…"> type:node] score:0 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:107 height:60 left:16 right:216 top:47 width:200] lhId:page-14-IMG nodeLabel:U.S. Department of Homeland Security Seal, U.S. Citizenship and Immigration Ser… path:1,HTML,1,BODY,1,DIV,0,DIV,1,HEADER,2,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,A,0,IMG selector:div#block-uscis-design-branding > div#home-logo > a > img snippet:<img src="/sites/default/files/USCIS_Signature_Preferred_FC.png" alt="U.S. Department of Homeland Security Seal, U.S. Citizenship and Immigratio…"> type:node]]] type:subitems]]]

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
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/u...80 ms
www.uscis.gov/libraries/fontawesome/webfonts/fa-solid-900.woff250 ms
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/u...45 ms
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/c...45 ms
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/c...35 ms
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/c...35 ms
www.uscis.gov/libraries/slick/slick/fonts/slick.woff35 ms
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/c...30 ms
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/u...25 ms
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/u...15 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:3.874 source:map[column:206100 line:5 type:source-location url:https://www.uscis.gov/libraries/fontawesome/js/all.min.js?td31e9 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:31.619 source:map[type:text value:[unattributed]]] map[reflowTime:13.178 source:map[column:45509 line:1 type:source-location url:https://www.uscis.gov/core/assets/vendor/jquery/jquery.min.js?v=4.0.0-rc.1 urlProvider:network]] map[reflowTime:0.49 source:map[column:46313 line:1 type:source-location url:https://www.uscis.gov/core/assets/vendor/jquery/jquery.min.js?v=4.0.0-rc.1 urlProvider:network]] map[reflowTime:1.044 source:map[column:45531 line:1 type:source-location url:https://www.uscis.gov/core/assets/vendor/jquery/jquery.min.js?v=4.0.0-rc.1 urlProvider:network]] map[reflowTime:20.052 source:map[column:15715 line:131 type:source-location url:https://www.uscis.gov/sites/default/files/js/js_FHMpXU29BX9aw_UrRAUqOs0RvT8iYQtGYZCXBHlTtBQ.js?scope=footer&delta=5&language=en&theme=uscis_design&include=eJx1UFuOwzAIvJBra7V7H0QNcUn9yBonTW6_7kOV0nZ_EMwwYhikJBkGZjqiPwOvjTMxuTfEoCo3kDyyb6W6US16XypJyXBiJK5AskArcPqBQdYPginBUuKcGL6-oXGaPu1UXoQvkFgVA8MRq_FnJuk8PC-6Z2eHWvLVovFRODcVYlgwCmG7Wht_Z66b84u9d1YGNv2pKPnsqM4TRvsYTSglRIaGwYVeXmeLI657MJlZvSgQq4Tsbl72UIjliPGgbesnwp5Tjv3vgy9pKplfldcYdEcOTKEs8HCAGePWxKv7l7GectddSOGZofS0Qr2F4-7Ue5Z_e0fS_A urlProvider:network]] map[reflowTime:0.071 source:map[column:4134 line:117 type:source-location url:https://www.uscis.gov/sites/default/files/js/js_FHMpXU29BX9aw_UrRAUqOs0RvT8iYQtGYZCXBHlTtBQ.js?scope=footer&delta=5&language=en&theme=uscis_design&include=eJx1UFuOwzAIvJBra7V7H0QNcUn9yBonTW6_7kOV0nZ_EMwwYhikJBkGZjqiPwOvjTMxuTfEoCo3kDyyb6W6US16XypJyXBiJK5AskArcPqBQdYPginBUuKcGL6-oXGaPu1UXoQvkFgVA8MRq_FnJuk8PC-6Z2eHWvLVovFRODcVYlgwCmG7Wht_Z66b84u9d1YGNv2pKPnsqM4TRvsYTSglRIaGwYVeXmeLI657MJlZvSgQq4Tsbl72UIjliPGgbesnwp5Tjv3vgy9pKplfldcYdEcOTKEs8HCAGePWxKv7l7GectddSOGZofS0Qr2F4-7Ue5Z_e0fS_A urlProvider:network]] map[reflowTime:1.363 source:map[column:2832 line:117 type:source-location url:https://www.uscis.gov/sites/default/files/js/js_FHMpXU29BX9aw_UrRAUqOs0RvT8iYQtGYZCXBHlTtBQ.js?scope=footer&delta=5&language=en&theme=uscis_design&include=eJx1UFuOwzAIvJBra7V7H0QNcUn9yBonTW6_7kOV0nZ_EMwwYhikJBkGZjqiPwOvjTMxuTfEoCo3kDyyb6W6US16XypJyXBiJK5AskArcPqBQdYPginBUuKcGL6-oXGaPu1UXoQvkFgVA8MRq_FnJuk8PC-6Z2eHWvLVovFRODcVYlgwCmG7Wht_Z66b84u9d1YGNv2pKPnsqM4TRvsYTSglRIaGwYVeXmeLI657MJlZvSgQq4Tsbl72UIjliPGgbesnwp5Tjv3vgy9pKplfldcYdEcOTKEs8HCAGePWxKv7l7GectddSOGZofS0Qr2F4-7Ue5Z_e0fS_A urlProvider:network]] map[reflowTime:5.586 source:map[column:186948 line:4 type:source-location url:https://www.uscis.gov/libraries/fontawesome/js/all.min.js?td31e9 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.

URLResource SizeEst Savings
Making America Safe Again USCIS is proud to support DHS efforts to Make Americ… div > div.views-row > div > div.usa-hero
www.uscis.gov/sites/default/files/images/home/Web_MASA_UPDATE_V6_EN_%402x.png2.2 MiB1.7 MiB
People gathered around a table that has documents and reports spread out on it. div.field > article.media > div.field > img.image
/sites/default/files/images/home/USCIS_Homepage_Research_...262.4 KiB237.5 KiB
Workers of various career paths in a line. div.field > article.media > div.field > img.image
/sites/default/files/images/home/USCIS_Homepage_Verify_48...260.1 KiB235.1 KiB
Person sitting at table typing on a laptop keyboard. div.field > article.media > div.field > img.image
/sites/default/files/images/home/USCIS_Homepage_File-Onli...240.0 KiB215.1 KiB
Woman on her mobile device checking her case status through her online account. div.field > article.media > div.field > img.image
/sites/default/files/images/home/USCIS_Homepage_Manage-Yo...225.5 KiB200.5 KiB
The Trump Gold Card is Here! To support the Trump Gold Card initiative, USCIS … div > div.views-row > div > div.usa-hero
/sites/default/files/images/home/WEB_banner_trumpcard_192...315.3 KiB190.0 KiB
U.S. Department of Homeland Security Seal, U.S. Citizenship and Immigration Ser… div.grid-row > div.usa-footer__logo > div.mobile-lg:grid-col-auto > img.usa-footer__logo-img
www.uscis.gov/sites/default/files/USCIS_Signature_Preferred_FC.png107.5 KiB95.5 KiB
Person reaching for keys div.field > article.media > div.field > img.image
/sites/default/files/images/home/USCIS.Gov_KnowBeforeYouG...36.5 KiB20.8 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-8-DIV
nodeLabel: Making America Safe Again USCIS’ end-of-year review demonstrates the impact of…
path: 1,HTML,1,BODY,1,DIV,0,DIV,3,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV
selector: div > div.views-row > div > div.usa-hero
snippet: <div class="usa-hero" style="background-image: url(&quot;/sites/default/files/images/home/Web%20Banner%20Gra…&quot;);">

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.

URLTransfer SizeDuration
/sites/default/files/css/css_rfeT5zDUAGxZm2aImPThrAPAvr1j...97.1 KiB1.1 s
/sites/default/files/js/js_ae2wwEP0sZpR7u41AAWVclgQ6XSmfo...491 B
/sites/default/files/js/js_6H78LPsshwYMQl-Huh5Modst_9suyP...460 B
www.uscis.gov/modules/contrib/google_tag/js/gtm.js?td31e9799 B
www.uscis.gov/modules/contrib/google_tag/js/gtag.js?td31e9814 B
/sites/default/files/css/css_KbilO5DUhxf-Ggy2kq_Z40HUcAmS...864 B
/sites/default/files/asset_injector/css/merriweather_font...546 B
/sites/default/files/css/css_0KlzIS5g5fa5x8x_BKXL43CdOKgL...800 B
/sites/default/files/css/css_J4YXLmCIG9odtaYoqr3J_RLsYiSz...5.0 KiB152 ms

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: 831 ms
URLTime Spent
uscis.gov/831 ms
www.uscis.gov/0.0 ms

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
Making America Safe Again USCIS is proud to support DHS efforts to Make Americ… body > div.dialog-off-canvas-main-canvas > div#page-wrapper > div#content-wrapper
0.407
U.S. Department of Homeland Security Seal, U.S. Citizenship and Immigration Ser… div#block-uscis-design-branding > div#home-logo > a > img
0.000

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: 610 ms 104.3 KiB
URLTransfer SizeEst Savings
/sites/default/files/css/css_rfeT5zDUAGxZm2aImPThrAPAvr1j...96.9 KiB92.9 KiB
www.google.com/cse/static/element/dc329f57de078f5d/default_v6+en.css11.9 KiB11.5 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: 3.5 s 724.7 KiB
URLTransfer SizeEst Savings
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e64h1147.1 KiB106.0 KiB
/sites/default/files/js/js_FHMpXU29BX9aw_UrRAUqOs0RvT8iYQ...152.8 KiB100.3 KiB
d2n4zfio24poj1.cloudfront.net/chatwidget/bundle.js132.3 KiB72.5 KiB
www.googletagmanager.com/gtag/js?id=G-QY7WXHK8CT&cx=c&gtm=4e64h1176.2 KiB70.2 KiB
www.googletagmanager.com/gtag/js?id=G-3LRB05G9HS&cx=c&gtm=4e64h1157.0 KiB66.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-WK8MXNN132.2 KiB62.4 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L147.0 KiB61.4 KiB
/cse/static/element/dc329f57de078f5d/cse_element__en.js?u...102.7 KiB53.7 KiB
connect.facebook.net/en_US/bundle/sdk.js/77.6 KiB50.5 KiB
cse.google.com/adsense/search/async-ads.js43.3 KiB31.5 KiB
/dxjsmodule/12.1a2b7192fd54e87d3971.chunk.js?Q_CLIENTVERS...35.7 KiB25.3 KiB
uscis.my.site.com/ESWOAISEmmaChannel1763090369120/assets/js/bootstrap.min.js25.9 KiB23.9 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.

URLTotal CPU TimeScript EvaluationScript Parse
Unattributable1.0 s16 ms0.0 ms
www.uscis.gov/1.0 s93 ms3.8 ms
/sites/default/files/js/js_FHMpXU29BX9aw_UrRAUqOs0RvT8iYQ...555 ms274 ms132 ms
www.googletagmanager.com/gtm.js?id=GTM-WK8MXNN482 ms391 ms73 ms
www.googletagmanager.com/gtag/js?id=G-QY7WXHK8CT&cx=c&gtm=4e64h1388 ms332 ms53 ms
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L328 ms267 ms60 ms
www.googletagmanager.com/gtag/js?id=G-3LRB05G9HS&cx=c&gtm=4e64h1302 ms253 ms47 ms
dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js263 ms165 ms1.4 ms
connect.facebook.net/en_US/bundle/sdk.js/211 ms174 ms26 ms
d2n4zfio24poj1.cloudfront.net/chatwidget/bundle.js180 ms166 ms4.4 ms
cse.google.com/cse.js?cx=a2ef8e2528658124e176 ms137 ms1.1 ms
/sites/default/files/css/css_rfeT5zDUAGxZm2aImPThrAPAvr1j...163 ms0.0 ms0.0 ms
www.uscis.gov/core/assets/vendor/jquery/jquery.min.js?v=4.0.0-rc.1123 ms93 ms16 ms
www.uscis.gov/libraries/fontawesome/js/all.min.js?td31e9121 ms53 ms20 ms
/dxjsmodule/12.1a2b7192fd54e87d3971.chunk.js?Q_CLIENTVERS...113 ms83 ms20 ms
/sites/default/files/js/js_6UJOHhAY2opn7jTwsrv-BbXHs_7OH_...105 ms80 ms19 ms
ep2.adtrafficquality.google/sodar/sodar2.js100 ms95 ms2.2 ms
/cse/static/element/dc329f57de078f5d/cse_element__en.js?u...80 ms39 ms38 ms
siteimproveanalytics.com/js/siteanalyze_6342107.js70 ms56 ms7.2 ms
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e64h169 ms31 ms37 ms
cse.google.com/adsense/search/async-ads.js54 ms37 ms11 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.

CategoryTime Spent
Script Evaluation3.0 s
Other1.2 s
Style & Layout881 ms
Script Parsing & Compilation623 ms
Parse HTML & CSS230 ms
Rendering159 ms
Garbage Collection94 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 reasonFailure type
The page has an unload handler in a sub 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 3.3 KiB
URLTransfer SizeEst Savings
www.google.com/cse/static/element/dc329f57de078f5d/default_v6+en.css12.0 KiB3.3 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 2.0 KiB
URLTransfer SizeEst Savings
uscis.my.site.com/resource/1776804004375/MIAWChatWrapperJS6.6 KiB2.0 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.

URLTransfer Size
www.uscis.gov/sites/default/files/images/home/Web_MASA_UPDATE_V6_EN_%402x.png2.2 MiB
www.uscis.gov/sites/default/files/images/home/Web_JoinUs_banner_1920x401.jpg481.2 KiB
/sites/default/files/images/home/WEB_banner_trumpcard_192...315.7 KiB
/sites/default/files/images/home/USCIS_Homepage_Research_...262.8 KiB
/sites/default/files/images/home/USCIS_Homepage_Verify_48...260.5 KiB
/sites/default/files/images/home/USCIS_Homepage_File-Onli...240.4 KiB
/sites/default/files/images/home/USCIS_Homepage_Manage-Yo...225.8 KiB
www.uscis.gov/sites/default/files/images/home/Web_ARR_banner_1920x401.jpg187.7 KiB
/sites/default/files/images/home/Web Banner Graphic_USCIS...177.1 KiB
www.googletagmanager.com/gtag/js?id=G-QY7WXHK8CT&cx=c&gtm=4e64h1176.2 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
U.S. Department of Homeland Security Seal, U.S. Citizenship and Immigration Ser… div#block-uscis-design-branding > div#home-logo > a > img
www.uscis.gov/sites/default/files/USCIS_Signature_Preferred_FC.png
U.S. Department of Homeland Security Seal, U.S. Citizenship and Immigration Ser… div.grid-row > div.usa-footer__logo > div.mobile-lg:grid-col-auto > img.usa-footer__logo-img
www.uscis.gov/sites/default/files/USCIS_Signature_Preferred_FC.png
Facebook div.usa-footer__social-links > div.grid-col-auto > a.usa-social-link > img.usa-social-link__icon
www.uscis.gov/themes/contrib/dhs_uswds/img/social-icons/facebook.svg
YouTube div.usa-footer__social-links > div.grid-col-auto > a.usa-social-link > img.usa-social-link__icon
www.uscis.gov/themes/contrib/dhs_uswds/img/social-icons/youtube.svg
U.S. Department of Homeland Security Seal div.usa-identifier__container > div.usa-identifier__logos > a.usa-identifier__logo > img.usa-identifier__logo-img
www.uscis.gov/themes/contrib/dhs_uswds/logo.svg
Email div.usa-footer__social-links > div.grid-col-auto > a.usa-social-link > img.usa-social-link__icon
www.uscis.gov/themes/contrib/dhs_uswds/img/social-icons/email.svg
Instagram div.usa-footer__social-links > div.grid-col-auto > a.usa-social-link > img.usa-social-link__icon
www.uscis.gov/themes/contrib/dhs_uswds/img/social-icons/instagram.svg
LinkedIn div.usa-footer__social-links > div.grid-col-auto > a.usa-social-link > img.usa-social-link__icon
www.uscis.gov/themes/contrib/dhs_uswds/img/social-icons/linkedin.svg
Pause div.view-content > ul.slick-dots > button.pause-slider > img
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/u...
X, formerly known as Twitter div.usa-footer__social-links > div.grid-col-auto > a.usa-social-link > img.usa-social-link__icon
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/c...

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

●Optimize DOM size
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●User Timing marks and measures 19 user timings
●Avoid long main-thread tasks 20 long tasks found
●Network Requests
●Network Round Trip Times 80 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 10 ms
○INP breakdown
○Avoid non-composited animations
96

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

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
1 2 3 4 5 div > div.image-content-queue > div.view-content > ul.slick-dots

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.

○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]`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
●`<frame>` or `<iframe>` elements have a title
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●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.
●`[lang]` attributes have a valid value
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Identical links have the same purpose.
●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
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○`<input type="image">` elements have `[alt]` text
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○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.
○`<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.
○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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/u...
Failed to load resource: the server responded with a status of 404 ()
/profiles/uscisd8_gov/themes/custom/uscis_design/assets/u...
Failed to load resource: the server responded with a status of 404 ()

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLMap URL
/sites/default/files/js/js_FHMpXU29BX9aw_UrRAUqOs0RvT8iYQ...
/Universal-Federated-Analytics-Min.js?agency=DHS&subagenc...dap.digitalgov.gov/Federated.js.map
●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
●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
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
○Redirects HTTP traffic to HTTPS
○Use a strong HSTS policy
○Mitigate clickjacking with XFO or CSP
85

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.

Why this matters

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destinationLink Text
www.dhs.gov/making-america-safe-againLearn More
/newsroom/news-releases/making-america-safe-again-us-citi...Learn More
trumpcard.gov/Learn More
www.uscis.gov/joinLearn More
www.uscis.gov/alienregistrationLearn More
www.dhs.gov/making-america-safe-againLearn More
/newsroom/news-releases/making-america-safe-again-us-citi...Learn More
trumpcard.gov/Learn More
www.uscis.gov/joinLearn More
www.uscis.gov/alienregistrationLearn More
www.dhs.gov/making-america-safe-againLearn More

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Page has successful HTTP status code
●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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