Lighthouse Desktop

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

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.

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.

Request	Cache TTL	Transfer Size
/content/dam/Census/stock-images/government/feature-local...	14400.0 s	1.9 MiB
/content/dam/Census/stock-images/people/senior-adults-pla...	14400.0 s	802.7 KiB
www.census.gov/content/dam/Census/stock-images/housing/suburban-neighborhood.jpg	14400.0 s	686.7 KiB
/content/census/en/jcr:content/root/responsivegrid/banner...	14400.0 s	607.8 KiB
www.census.gov/content/dam/Census/stock-images/miscellaneous/last-names.jpg	14400.0 s	390.5 KiB
/content/dam/Census/stock-images/occupation/professional_...	14400.0 s	220.1 KiB
assets.adobedtm.com/launch-ENdc1ca6bab15e46a5b880a2c3f9d462ab.min.js	3600.0 s	125.0 KiB
www.census.gov/econ_assets/js/jquery.min.js	0.0 ms	30.0 KiB
www.census.gov/econ_assets/econwidget/css/bundle.css	0.0 ms	26.3 KiB
www.gstatic.com/charts/loader.js	3600.0 s	18.6 KiB
dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOC&subagency=CEN	0.0 ms	9.4 KiB
www.census.gov/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?	14400.0 s	12.2 KiB
dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js	0.0 ms	4.5 KiB
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...	86400.0 s	10.7 KiB
/apps/census/components/common/shared/modules.min.76edced...	14400.0 s	3.2 KiB
www.census.gov/econ_assets/econwidget/css/widget.css	0.0 ms	2.1 KiB
www.census.gov/econ_assets/econwidget/css/census-base.css	0.0 ms	1.9 KiB
www.census.gov/econ_assets/econwidget/css/widget-tooltip.css	0.0 ms	1.1 KiB
www.census.gov/econ_assets/econwidget/icons/up.svg	0.0 ms	832 B
/7d6e749d4118/1f2b049df95b/34dc35cb2362/RC071e17725fad44a...	3600.0 s	933 B
www.census.gov/econ_assets/econwidget/icons/nochange-nostat.svg	0.0 ms	729 B
www.census.gov/econ_assets/econwidget/css/widget-root.css	0.0 ms	687 B
/7d6e749d4118/1f2b049df95b/34dc35cb2362/RC87bbffc6ff9e429...	3600.0 s	562 B
www.census.gov/econ_assets/econwidget/css/widget-symbols.css	0.0 ms	283 B
www.census.gov/econ_assets/econwidget/js/widget.min.js	0.0 ms	250 B
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...	86400.0 s	0 B
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...	86400.0 s	0 B
www.census.gov/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?	14400.0 s	0 B
www.census.gov/cdn-cgi/challenge-platform/scripts/jsd/main.js	14400.0 s	0 B

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
www.census.gov/main/resources/css/fonts/roboto/roboto-v18-latin-regular.woff2	180 ms
www.census.gov/main/resources/css/fonts/roboto/roboto-v18-latin-500.woff2	180 ms
/etc.clientlibs/census/clientlibs/clientlib-site/resource...	175 ms
/etc.clientlibs/census/clientlibs/census-fonts/resources/...	170 ms
/etc.clientlibs/census/clientlibs/clientlib-site/resource...	170 ms
/etc.clientlibs/census/clientlibs/census-fonts/resources/...	165 ms
fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	35 ms

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
div.uscb-five-feature > div.uscb-layout-row > a.uscb-five-feature-item-large > div.uscb-five-feature-item-large-image `div.uscb-five-feature > div.uscb-layout-row > a.uscb-five-feature-item-large > div.uscb-five-feature-item-large-image`	/content/dam/Census/stock-images/government/feature-local...	1.9 MiB	1.5 MiB
Measuring America's People and Economy We Believe in the Power of Quality Data… `div.aem-Grid > div.bannerherocta > div > section.uscb-banner-hero`	/content/census/en/jcr:content/root/responsivegrid/banner...	606.8 KiB	500.8 KiB
div.uscb-five-feature > div.uscb-layout-row > a.uscb-five-feature-item-large > div.uscb-five-feature-item-large-image `div.uscb-five-feature > div.uscb-layout-row > a.uscb-five-feature-item-large > div.uscb-five-feature-item-large-image`	/content/dam/Census/stock-images/people/senior-adults-pla...	801.6 KiB	464.1 KiB
div.cmp-feature__content > div.uscb-headline-feature-single-display > a.uscb-featured-list-link > div.uscb-featured-list-background `div.cmp-feature__content > div.uscb-headline-feature-single-display > a.uscb-featured-list-link > div.uscb-featured-list-background`	www.census.gov/content/dam/Census/stock-images/housing/suburban-neighborhood.jpg	684.9 KiB	347.4 KiB
div.uscb-five-feature > div.uscb-layout-row > a.uscb-five-feature-item-large > div.uscb-five-feature-item-large-image `div.uscb-five-feature > div.uscb-layout-row > a.uscb-five-feature-item-large > div.uscb-five-feature-item-large-image`	www.census.gov/content/dam/Census/stock-images/miscellaneous/last-names.jpg	389.9 KiB	52.4 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-1-SECTION

nodeLabel: Measuring America's People and Economy We Believe in the Power of Quality Data…

path: 2,HTML,1,BODY,5,DIV,0,DIV,0,DIV,5,DIV,0,DIV,0,DIV,0,DIV,1,SECTION

selector: div.aem-Grid > div.bannerherocta > div > section.uscb-banner-hero

snippet: <section style="background-image: url("/content/census/en/jcr:content/root/responsivegrid/b…");" class="uscb-banner-hero uscb-banner-hero-image-container uscb-banner-hero-desktop…">

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.

URL	Transfer Size	Duration
/etc.clientlibs/census/clientlibs/clientlib-site.min.bb2f...	61.0 KiB	168 ms
/etc.clientlibs/clientlibs/granite/jquery-ui.min.000478df...	69.2 KiB	112 ms
/etc.clientlibs/census/clientlibs/census-pattern-library....	31.7 KiB	112 ms
/etc.clientlibs/census/clientlibs/census-css.min.a89ce312...	46.5 KiB	112 ms
/etc.clientlibs/clientlibs/granite/jquery.min.cee8557e877...	34.8 KiB	112 ms
/etc.clientlibs/census/clientlibs/bootstrap.min.3e7d159fa...	20.1 KiB	56 ms
/etc.clientlibs/foundation/clientlibs/jquery-ui.min.3cc46...	3.4 KiB
/etc.clientlibs/foundation/clientlibs/jquery.min.dd9b395c...	95 B
/etc.clientlibs/census/clientlibs/census-disabled.min.425...	385 B
/etc.clientlibs/census/clientlibs/aemgrid.min.be57a8c9b7d...	6.2 KiB
/etc.clientlibs/census/clientlibs/modernizr.min.33837f3af...	5.4 KiB
/etc.clientlibs/clientlibs/granite/jquery/granite.min.543...	1.6 KiB
/etc.clientlibs/clientlibs/granite/utils.min.899004cc02c3...	4.1 KiB
/etc.clientlibs/census/clientlibs/core-overrides.min.95bc...	1.7 KiB
/etc.clientlibs/census/clientlibs/census-fonts-multilang....	3.1 KiB
/etc.clientlibs/census/clientlibs/census-disabled.min.d00...	836 B
/etc.clientlibs/census/clientlibs/uswds-init.min.c213ff96...	5.0 KiB
/etc.clientlibs/census/clientlibs/clientlib-dependencies....	52 B
www.gstatic.com/charts/loader.js	18.6 KiB	230 ms
/etc.clientlibs/clientlibs/granite/jquery-ui.min.48e542f5...	8.5 KiB
/etc.clientlibs/census/clientlibs/census-fonts.min.9ebcbf...	503 B
/etc.clientlibs/census/clientlibs/orionicons.min.2ffd39f8...	3.3 KiB
/etc.clientlibs/census-core/clientlibs.min.9556bf894a0d40...	997 B
/etc.clientlibs/census/clientlibs/common-site.min.8e92f50...	232 B
assets.adobedtm.com/launch-ENdc1ca6bab15e46a5b880a2c3f9d462ab.min.js	125.0 KiB	490 ms

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: 546 ms

URL	Time Spent
census.gov/	546 ms
www.census.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.

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: 0.0 ms 33.0 KiB

URL	Transfer Size	Est Savings
/etc.clientlibs/census/clientlibs/census-css.min.a89ce312...	46.5 KiB	11.6 KiB
/etc.clientlibs/census/clientlibs/census-pattern-library....	31.7 KiB	7.2 KiB
www.census.gov/econ_assets/econwidget/css/bundle.css	26.3 KiB	6.0 KiB
www.census.gov/main/resources/css/census.css	35.4 KiB	4.7 KiB
/etc.clientlibs/census/clientlibs/bootstrap.min.3e7d159fa...	20.1 KiB	3.5 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: 60 ms 101.1 KiB

URL	Transfer Size	Est Savings
www.census.gov/main/resources/js/census.min.js	149.3 KiB	61.6 KiB
/etc.clientlibs/census/clientlibs/census-js.min.7052beb2c...	151.7 KiB	27.5 KiB
/etc.clientlibs/census/clientlibs/search.min.bc8c36a2d487...	10.6 KiB	4.1 KiB
/populationwidget/population_counters/population_counters...	5.3 KiB	3.2 KiB
/etc.clientlibs/census/clientlibs/universalheader.min.5cd...	5.8 KiB	2.4 KiB
census.gov/ratingtool/js/ratingtool.js	3.9 KiB	2.3 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: 280 ms 230.7 KiB

URL	Transfer Size	Est Savings
/etc.clientlibs/census/clientlibs/clientlib-site.min.bb2f...	60.9 KiB	58.0 KiB
/etc.clientlibs/census/clientlibs/census-css.min.a89ce312...	46.4 KiB	44.8 KiB
www.census.gov/main/resources/css/census.css	34.0 KiB	33.6 KiB
/etc.clientlibs/census/clientlibs/census-pattern-library....	31.6 KiB	31.3 KiB
www.census.gov/econ_assets/econwidget/css/bundle.css	26.3 KiB	26.2 KiB
/etc.clientlibs/census/clientlibs/bootstrap.min.3e7d159fa...	20.0 KiB	19.5 KiB
.uscb-tag__census{background-color: #bbddff;border-color: #bbddff;--icon-class:o-news-1;} …	17.3 KiB	17.2 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: 280 ms 541.8 KiB

URL	Transfer Size	Est Savings
/etc.clientlibs/census/clientlibs/census-js.min.7052beb2c...	151.7 KiB	117.5 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e64h1	147.2 KiB	106.1 KiB
www.census.gov/main/resources/js/census.min.js	149.3 KiB	85.6 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L	147.2 KiB	62.6 KiB
www.googletagmanager.com/gtag/js?id=G-VY5XG9XWGG	158.5 KiB	62.5 KiB
/etc.clientlibs/clientlibs/granite/jquery-ui.min.000478df...	69.1 KiB	55.7 KiB
assets.adobedtm.com/launch-ENdc1ca6bab15e46a5b880a2c3f9d462ab.min.js	124.7 KiB	29.8 KiB
www.census.gov/econ_assets/js/jquery.min.js	30.0 KiB	22.0 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reason	Failure type
Pages with cache-control:no-store header cannot enter back/forward cache.	Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.	Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.	Not actionable

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.

URL	Transfer Size
/content/dam/Census/stock-images/government/feature-local...	1.9 MiB
/content/dam/Census/stock-images/people/senior-adults-pla...	802.7 KiB
www.census.gov/content/dam/Census/stock-images/housing/suburban-neighborhood.jpg	686.7 KiB
/content/census/en/jcr:content/root/responsivegrid/banner...	607.8 KiB
www.census.gov/content/dam/Census/stock-images/miscellaneous/last-names.jpg	390.5 KiB
/content/dam/Census/stock-images/occupation/professional_...	220.1 KiB
www.googletagmanager.com/gtag/js?id=G-VY5XG9XWGG	158.8 KiB
/etc.clientlibs/census/clientlibs/census-js.min.7052beb2c...	152.3 KiB
www.census.gov/main/resources/js/census.min.js	150.4 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L	147.3 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
United States Census Bureau `div.uscb-header-content > div.uscb-header-logo > a > img.uscb-nav-image`	/etc.clientlibs/census/clientlibs/census-pattern-library/...
Thumbs Up Image `div#thumbs_div > div.rate-WasThisPageHelpful_div > center > img#thumbsup`	census.gov/ratingtool/images/like-hand-3122.svg
Thumbs Down Image `div#thumbs_div > div.rate-WasThisPageHelpful_div > center > img#thumbsdown`	census.gov/ratingtool/images/unlike-hand-3123.svg
U.S. flag `header.usa-banner__header > div.usa-banner__inner > div.grid-col-auto > img.usa-banner__header-flag`	/etc.clientlibs/census/clientlibs/uswds-init/resources/im...

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

●Layout shift culprits

●Optimize DOM size

●Forced reflow

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Max Potential First Input Delay 50 ms

●User Timing marks and measures 14 user timings

●JavaScript execution time 0.4 s

●Minimizes main-thread work 1.1 s

●Avoid long main-thread tasks 1 long task found

●Network Requests

●Network Round Trip Times 110 ms

●Server Backend Latencies 160 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 180 ms

●Avoid large layout shifts 15 layout shifts found

○INP breakdown

○Avoid non-composited animations

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

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.embedcore > div#embedcore-e1b008a88e > div#censusgov-iframe-EYUA2ADVGMN6FINXXK > iframe `div.embedcore > div#embedcore-e1b008a88e > div#censusgov-iframe-EYUA2ADVGMN6FINXXK > iframe`
div.embedcore > div#embedcore-b645a3e56a > div#censusgov-iframe-8LSPQ9E5P7TLNMTPY1 > iframe `div.embedcore > div#embedcore-b645a3e56a > div#censusgov-iframe-8LSPQ9E5P7TLNMTPY1 > iframe`

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.

Tables and lists

Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Data Profiles `div#llList_800475114 > div.uscb-multi-col-list > span.uscb-link-list > li.uscb-multi-col-list-item`
America Counts `div#llList_800475114 > div.uscb-multi-col-list > span.uscb-link-list > li.uscb-multi-col-list-item`
2026 Census Test `div#llList_800475114 > div.uscb-multi-col-list > span.uscb-link-list > li.uscb-multi-col-list-item`
2030 Census `div#llList_800475114 > div.uscb-multi-col-list > span.uscb-link-list > li.uscb-multi-col-list-item`
Verify a Survey `div#llList_800475114 > div.uscb-multi-col-list > span.uscb-link-list > li.uscb-multi-col-list-item`
Annual Integrated Economic Survey (AIES) `div#llList_800475114 > div.uscb-multi-col-list > span.uscb-link-list > li.uscb-multi-col-list-item`
2020 Census Results `div#llList_800475114 > div.uscb-multi-col-list > span.uscb-link-list > li.uscb-multi-col-list-item`
Economic Indicator Economic Indicator: Advance Monthly Sales for Retail and Fo… `div.pagelist > div.listContent > div#data-calendarview-events-2044064413 > li.uscb-list-item`
Economic Indicator Economic Indicator: Manufacturing and Trade: Inventories an… `div.pagelist > div.listContent > div#data-calendarview-events-2044064413 > li.uscb-list-item`
Webinar CSRM Seminar - Inference about a Binomial Proportion Under Privacy Pro… `div.pagelist > div.listContent > div#data-calendarview-events-2044064413 > li.uscb-list-item`

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Navigation

A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the `tabindex` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Skip Header `div.universalheader > header#data-uscb-main-header > nav > a#uscb-nav-skip-header`
✕ `nav > div#ratingtool > div#thumbs_div > div#CloseThumbs`
Thumbs Up Image `div#thumbs_div > div.rate-WasThisPageHelpful_div > center > img#thumbsup`
Thumbs Down Image `div#thumbs_div > div.rate-WasThisPageHelpful_div > center > img#thumbsdown`

These are opportunities to improve keyboard navigation in your application.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.uscb-footer-main > div.uscb-footer-follow > div.uscb-footer-social-icon-links > a.uscb-share-icon `div.uscb-footer-main > div.uscb-footer-follow > div.uscb-footer-social-icon-links > a.uscb-share-icon`

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.

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Economic Indicator Economic Indicator: Advance Monthly Sales for Retail and Fo… `div.listContent > div#data-calendarview-events-2044064413 > li.uscb-list-item > a.uscb-layout-row`
Economic Indicator Economic Indicator: Manufacturing and Trade: Inventories an… `div.listContent > div#data-calendarview-events-2044064413 > li.uscb-list-item > a.uscb-layout-row`
Webinar CSRM Seminar - Inference about a Binomial Proportion Under Privacy Pro… `div.listContent > div#data-calendarview-events-2044064413 > li.uscb-list-item > a.uscb-layout-row`

○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]` 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

●Form elements have associated labels

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●ARIA attributes are used as specified for the element's role

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links have a discernible name

●Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

●Heading elements appear in a sequentially-descending order

●Deprecated ARIA roles were not used

●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.

○`[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 an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○`[role]`s are contained by their required parent element

○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 buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○Links are distinguishable without relying on color.

○Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`[lang]` attributes have a valid value

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Uses ARIA roles only on compatible elements

○Image elements do not have `[alt]` attributes that are redundant text.

○Identical links have the same purpose.

Best Practices

User Experience

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Aspect Ratio (Displayed)	Aspect Ratio (Actual)
div#popupRatingContainer > div#rate-CharCounter > span.rate-max-reached > img `div#popupRatingContainer > div#rate-CharCounter > span.rate-max-reached > img`	census.gov/ratingtool/images/exclamation-icon.png	20 x 1275 (0.02)	1650 x 1275 (1.29)

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
SharedStorage	www.census.gov/cdn-cgi/challenge-platform/scripts/jsd/main.js
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.	www.census.gov/cdn-cgi/challenge-platform/scripts/jsd/main.js
Fledge	www.census.gov/cdn-cgi/challenge-platform/scripts/jsd/main.js

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.

Source	Description
www.census.gov/econwidget?noheader	`Invalid 'X-Frame-Options' header encountered when loading 'https://www.census.gov/': 'ALLOW-FROM https://www.census.gov' is not a recognized directive. The header will be ignored.`

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.

URL	Map URL
www.census.gov/main/resources/js/census.min.js
/etc.clientlibs/census/clientlibs/census-js.min.7052beb2c...
dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOC&subagency=CEN	dap.digitalgov.gov/Federated.js.map

●Uses HTTPS

●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

●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

●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

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

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 destination	Link Text
www.census.gov/about-us	Learn More
www.census.gov/about-us	Learn More

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
`div#data-uscb-input-wrapper-mobile-header-nav > ul.uscb-filter-list > div.uscb-margin-B-5 > a.uscb-color-primary`
Economic Indicator Economic Indicator: Advance Monthly Sales for Retail and Fo… `div.listContent > div#data-calendarview-events-2044064413 > li.uscb-list-item > a.uscb-layout-row`
Economic Indicator Economic Indicator: Manufacturing and Trade: Inventories an… `div.listContent > div#data-calendarview-events-2044064413 > li.uscb-list-item > a.uscb-layout-row`
Webinar CSRM Seminar - Inference about a Binomial Proportion Under Privacy Pro… `div.listContent > div#data-calendarview-events-2044064413 > li.uscb-list-item > a.uscb-layout-row`

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

●Document has a meta description

●Page has successful HTTP status code

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`