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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.

53

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.

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:0.11628] map[node:map[boundingRect:map[bottom:585 height:322 left:0 right:412 top:263 width:412] lhId:page-1-DIV nodeLabel:A to Z Browse documents by alphabetical order Category Browse documents in s… path:1,HTML,1,BODY,1,DIV,3,SECTION,1,DIV,0,DIV,0,DIV selector:section#banner > div.container > div.row > div.col-xs-12 snippet:<div class="col-xs-12"> type:node] score:0.112557] map[node:map[boundingRect:map[bottom:394 height:60 left:43 right:402 top:333 width:359] lhId:page-5-DIV nodeLabel:Category Browse documents in specific collections path:1,HTML,1,BODY,1,DIV,3,SECTION,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,SECTION,1,A,0,DIV,1,DIV selector:section.item > a > div.media > div.media-body snippet:<div class="media-body"> type:node] score:0.003074] map[node:map[boundingRect:map[bottom:240 height:37 left:346 right:380 top:203 width:34] lhId:page-3-BUTTON nodeLabel:div#searchWidget-tabpane-simple-search > section.search-input-pane > div.input-group > button.btn-search path:1,HTML,1,BODY,1,DIV,3,SECTION,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,4,SECTION,0,ARTICLE,1,DIV,0,DIV,0,SECTION,0,DIV,1,BUTTON selector:div#searchWidget-tabpane-simple-search > section.search-input-pane > div.input-group > button.btn-search snippet:<button type="button" class="btn-search"> type:node] score:0.000649 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:2381 height:115 left:15 right:130 top:2267 width:115] lhId:page-11-IMG nodeLabel:div.features__img > div.field > div.field__item > img path:1,HTML,1,BODY,1,DIV,4,DIV,0,DIV,1,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,SECTION,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,IMG selector:div.features__img > div.field > div.field__item > img snippet:<img loading="lazy" src="/sites/default/files/styles/govinfothumb/public/media/govinfo_eagle_homepa…" width="150" height="150" typeof="foaf:Image"> 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
/themes/contrib/bootstrap_fdsys/font-awesome/fonts/fontaw...285 ms
fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff25.0 ms
fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh6UVSwiPGQ3q5d0.woff25.0 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:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:32.1 source:map[type:text value:[unattributed]]]]

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
www.govinfo.gov/core/assets/vendor/jquery/jquery.min.js?v=3.7.134.7 KiB603 ms
/themes/contrib/bootstrap_fdsys/bootstrap/css/bootstrap.m...24.7 KiB301 ms
www.govinfo.gov/themes/contrib/bootstrap_fdsys/css/style.css%3Ftd2zvj18.6 KiB151 ms
www.govinfo.gov/themes/contrib/bootstrap_fdsys/js/share-content.min.js?v=10.6.31.5 KiB
www.govinfo.gov/themes/contrib/bootstrap_fdsys/js/custom/toggle.js?v=10.6.3263 B
www.govinfo.gov/core/misc/drupal.init.js?v=10.6.3448 B
/themes/contrib/bootstrap_fdsys/css/components/primary-me...1.3 KiB
www.govinfo.gov/themes/contrib/bootstrap_fdsys/js/custom/to-top.js?v=10.6.3245 B
/themes/contrib/bootstrap_fdsys/js/jquery.smoothscroll.js...692 B
www.govinfo.gov/core/misc/drupal.js?v=10.6.32.1 KiB
/themes/contrib/bootstrap_fdsys/css/components/to-top.css...343 B
www.govinfo.gov/core/modules/system/css/components/tablesort.module.css%3Ftd2zvj261 B
www.govinfo.gov/themes/contrib/bootstrap_fdsys/css/system.menus.css%3Ftd2zvj1.0 KiB
www.govinfo.gov/core/misc/drupalSettingsLoader.js?v=10.6.3367 B
www.govinfo.gov/core/modules/system/css/components/resize.module.css%3Ftd2zvj208 B
www.govinfo.gov/themes/contrib/bootstrap_fdsys/css/local.css%3Ftd2zvj1.3 KiB
/core/modules/system/css/components/system-status-report-...358 B
www.govinfo.gov/core/modules/system/css/components/details.module.css%3Ftd2zvj174 B
www.govinfo.gov/core/modules/system/css/components/clearfix.module.css%3Ftd2zvj274 B
/core/modules/system/css/components/reset-appearance.modu...237 B
/core/modules/system/css/components/system-status-report-...226 B
/themes/contrib/bootstrap_fdsys/font-awesome/css/font-awe...6.0 KiB151 ms
www.govinfo.gov/core/modules/system/css/components/item-list.module.css%3Ftd2zvj209 B
/core/modules/system/css/components/system-status-counter...368 B
www.govinfo.gov/core/modules/system/css/components/js.module.css%3Ftd2zvj396 B
/core/modules/system/css/components/position-container.mo...147 B
www.govinfo.gov/core/modules/system/css/components/nowrap.module.css%3Ftd2zvj157 B
/core/modules/system/css/components/container-inline.modu...221 B
www.govinfo.gov/core/modules/system/css/components/hidden.module.css%3Ftd2zvj725 B
/core/modules/system/css/components/fieldgroup.module.css...148 B
www.govinfo.gov/core/modules/system/css/components/align.module.css%3Ftd2zvj299 B151 ms
fonts.googleapis.com/css?family=Lato:700|Roboto:400,7002.1 KiB762 ms

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.govinfo.gov/app/infrastructure.js0.0 ms540.9 KiB
www.govinfo.gov/app/search/assets/search-embedder.js0.0 ms180.2 KiB
www.govinfo.gov/media/USGPO-Certification-Mark-Web.png0.0 ms62.1 KiB
/themes/contrib/bootstrap_fdsys/font-awesome/fonts/fontaw...0.0 ms55.6 KiB
/sites/default/files/styles/govinfothumb/public/media/fla...0.0 ms44.3 KiB
/sites/default/files/styles/govinfothumb/public/media/med...0.0 ms41.7 KiB
www.govinfo.gov/core/assets/vendor/jquery/jquery.min.js?v=3.7.10.0 ms34.7 KiB
/themes/contrib/bootstrap_fdsys/bootstrap/css/bootstrap.m...0.0 ms24.7 KiB
www.govinfo.gov/themes/contrib/bootstrap_fdsys/css/style.css%3Ftd2zvj0.0 ms18.6 KiB
www.govinfo.gov/media/CoreTrustSeal-logo-transparent.png0.0 ms15.9 KiB
www.govinfo.gov/media/gpo-logov1.jpg0.0 ms6.9 KiB
/themes/contrib/bootstrap_fdsys/font-awesome/css/font-awe...0.0 ms6.0 KiB
/sites/default/files/styles/govinfothumb/public/media/whm...0.0 ms5.2 KiB
/sites/default/files/styles/govinfothumb/public/media/gov...0.0 ms4.7 KiB
www.govinfo.gov/media/GovInfo_Logo_Gray.svg0.0 ms2.3 KiB
www.govinfo.gov/core/misc/drupal.js?v=10.6.30.0 ms2.1 KiB
www.govinfo.gov/themes/contrib/bootstrap_fdsys/js/share-content.min.js?v=10.6.30.0 ms1.5 KiB
/themes/contrib/bootstrap_fdsys/css/components/primary-me...0.0 ms1.3 KiB
www.govinfo.gov/themes/contrib/bootstrap_fdsys/css/local.css%3Ftd2zvj0.0 ms1.3 KiB
www.govinfo.gov/themes/contrib/bootstrap_fdsys/css/system.menus.css%3Ftd2zvj0.0 ms1.0 KiB
www.govinfo.gov/sites/default/files/feed.png0.0 ms737 B
www.govinfo.gov/core/modules/system/css/components/hidden.module.css%3Ftd2zvj0.0 ms725 B
/themes/contrib/bootstrap_fdsys/js/jquery.smoothscroll.js...0.0 ms692 B
www.govinfo.gov/core/misc/drupal.init.js?v=10.6.30.0 ms448 B
www.govinfo.gov/core/modules/system/css/components/js.module.css%3Ftd2zvj0.0 ms396 B
/core/modules/system/css/components/system-status-counter...0.0 ms368 B
www.govinfo.gov/core/misc/drupalSettingsLoader.js?v=10.6.30.0 ms367 B
/core/modules/system/css/components/system-status-report-...0.0 ms358 B
/themes/contrib/bootstrap_fdsys/css/components/to-top.css...0.0 ms343 B
www.govinfo.gov/core/modules/system/css/components/align.module.css%3Ftd2zvj0.0 ms299 B
www.govinfo.gov/core/modules/system/css/components/clearfix.module.css%3Ftd2zvj0.0 ms274 B
www.govinfo.gov/themes/contrib/bootstrap_fdsys/js/custom/toggle.js?v=10.6.30.0 ms263 B
www.govinfo.gov/core/modules/system/css/components/tablesort.module.css%3Ftd2zvj0.0 ms261 B
www.govinfo.gov/themes/contrib/bootstrap_fdsys/js/custom/to-top.js?v=10.6.30.0 ms245 B
/core/modules/system/css/components/reset-appearance.modu...0.0 ms237 B
/core/modules/system/css/components/system-status-report-...0.0 ms226 B
/core/modules/system/css/components/container-inline.modu...0.0 ms221 B
www.govinfo.gov/core/modules/system/css/components/item-list.module.css%3Ftd2zvj0.0 ms209 B
www.govinfo.gov/core/modules/system/css/components/resize.module.css%3Ftd2zvj0.0 ms208 B
www.govinfo.gov/core/modules/system/css/components/details.module.css%3Ftd2zvj0.0 ms174 B
www.govinfo.gov/core/modules/system/css/components/nowrap.module.css%3Ftd2zvj0.0 ms157 B
/core/modules/system/css/components/fieldgroup.module.css...0.0 ms148 B
/core/modules/system/css/components/position-container.mo...0.0 ms147 B
www.govinfo.gov/app/search/tracker_config.js0.0 ms137 B

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
PTAB: ISO/IEC 16363:2012 Trustworthy digital repository. Certificate number: PT… div.row > aside.affiliate-badges-group > a.affiliate-badge > img
www.govinfo.gov/media/USGPO-Certification-Mark-Web.png62.0 KiB55.1 KiB
Image: George Caleb Bingham, “The Jolly Flatboatmen,” 1846 (National Gallery of… div.features__img > div.field > div.field__item > img
/sites/default/files/styles/govinfothumb/public/media/fla...44.2 KiB40.5 KiB
Image of the three Medals of Honor, Source: Veterans Affairs div.features__img > div.field > div.field__item > img
/sites/default/files/styles/govinfothumb/public/media/med...41.5 KiB38.2 KiB
Core Trust Seal div.row > aside.affiliate-badges-group > a.affiliate-badge > img
www.govinfo.gov/media/CoreTrustSeal-logo-transparent.png15.8 KiB9.2 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.1 s
URLTime Spent
govinfo.gov/1.1 s
www.govinfo.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
A to Z Browse documents by alphabetical order Category Browse documents in s… section#banner > div.container > div.row > div.col-xs-12
0.113
Category Browse documents in specific collections section.item > a > div.media > div.media-body
0.003
div#searchWidget-tabpane-simple-search > section.search-input-pane > div.input-group > button.btn-search div#searchWidget-tabpane-simple-search > section.search-input-pane > div.input-group > button.btn-search
0.001

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.

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: 150 ms 11.1 KiB
URLTransfer SizeEst Savings
/* stylelint-disable scss/dollar-variable-empty-line-before */ /* stylelint-disable max-line-length…51.8 KiB7.3 KiB
www.govinfo.gov/themes/contrib/bootstrap_fdsys/css/style.css%3Ftd2zvj18.6 KiB3.7 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: 150 ms 88.9 KiB
URLTransfer SizeEst Savings
/* stylelint-disable scss/dollar-variable-empty-line-before */ /* stylelint-disable max-line-length…51.8 KiB49.0 KiB
/themes/contrib/bootstrap_fdsys/bootstrap/css/bootstrap.m...24.7 KiB23.2 KiB
www.govinfo.gov/themes/contrib/bootstrap_fdsys/css/style.css%3Ftd2zvj18.6 KiB16.7 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 150 ms 148.6 KiB
URLTransfer SizeEst Savings
www.govinfo.gov/app/infrastructure.js540.9 KiB64.1 KiB
www.govinfo.gov/app/search/assets/search-embedder.js180.1 KiB60.5 KiB
www.govinfo.gov/core/assets/vendor/jquery/jquery.min.js?v=3.7.134.7 KiB24.0 KiB

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
Other626 ms
Script Evaluation552 ms
Script Parsing & Compilation431 ms
Style & Layout328 ms
Rendering96 ms
Parse HTML & CSS85 ms

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 450.9 KiB
URLTransfer SizeEst Savings
www.govinfo.gov/app/infrastructure.js540.9 KiB450.9 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
Core Trust Seal div.row > aside.affiliate-badges-group > a.affiliate-badge > img
www.govinfo.gov/media/CoreTrustSeal-logo-transparent.png
PTAB: ISO/IEC 16363:2012 Trustworthy digital repository. Certificate number: PT… div.row > aside.affiliate-badges-group > a.affiliate-badge > img
www.govinfo.gov/media/USGPO-Certification-Mark-Web.png
GovInfo logo div.container > div.navbar-header > a#headerLogoId1 > img
www.govinfo.gov/media/GovInfo_Logo_Gray.svg
Government Publishing Office Logo div.row > aside.affiliate-badges-group > a.affiliate-badge > img
www.govinfo.gov/media/gpo-logov1.jpg

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
●Avoids enormous network payloads Total size was 1,133 KiB
●JavaScript execution time 1.0 s
●Avoid long main-thread tasks 7 long tasks found
●Avoid non-composited animations 2 animated elements found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 0 ms
●Server Backend Latencies 390 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 110 ms
○INP breakdown
○LCP request discovery
○User Timing marks and measures
84

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.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#searchWidget-tabpane-simple-search > section.search-input-pane > div.input-group > button.btn-search div#searchWidget-tabpane-simple-search > section.search-input-pane > div.input-group > button.btn-search

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.features__img > div.field > div.field__item > img div.features__img > div.field > div.field__item > img

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.container > div.navbar-header > div.mainMenu-toggle__container > a.mainMenu-toggle div.container > div.navbar-header > div.mainMenu-toggle__container > a.mainMenu-toggle

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

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
A to Z a > div.media > div.media-body > h4.media-heading
March 2026 Release Notes article.featured-links > div.features__text > div.field > h3.artilce-title

These are opportunities to improve keyboard navigation in your application.

Best practices

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html.js html.js

These items highlight common accessibility best practices.

○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
●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
●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
●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.
●Deprecated ARIA roles were not used
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○`[aria-hidden="true"]` elements do not contain focusable descendents
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○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.
○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.
○`[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.
○Elements with visible text labels have matching accessible names.
○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.
100

Best Practices

General

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
www.govinfo.gov/app/search/assets/search-embedder.jswww.govinfo.gov/app/search/assets/search-embedder.js.map
www.govinfo.gov/app/infrastructure.js
●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 browser errors logged to the console
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
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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.

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.features__img > div.field > div.field__item > img div.features__img > div.field > div.field__item > img

Canonical links suggest which URL to show in search results. Learn more about canonical links.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

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

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Get Bookmarkable URL div#searchWidget-tabpane-advanced-search > section.search-input-pane > aside.search-url-bookmark > a
Get Bookmarkable URL div#searchWidget-tabpane-citation-search > section.search-input-pane > aside.search-url-bookmark > a
Presidential Documents div.row > ul > li > a
Congressional Bills div.row > ul > li > a
Congressionally Mandated Reports div.row > ul > li > a
All Documents div.row > ul > li > a

To appear in search results, crawlers need access to your app.

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Page has successful HTTP status code
●Links have descriptive text
●robots.txt is valid
●Document has a valid `hreflang`

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