D — https://darpa.mil | BeaverCheck Audit

Site Health

Score: 68 / 100

Based on 8 categories, 0 sections

Room to improve — your 27.7s load time is above Google's 2.5s 'Good' threshold.

Several missing protections leave your users and data exposed.

Major barriers for users with disabilities — up to 15% of your audience.

Well-optimized for search — your content is discoverable.

Infrastructure issues create a speed ceiling frontend fixes can't overcome.

Mostly compliant — a few items need attention.

Rich content metadata — your pages look great everywhere.

Heavier than average — reducing page weight saves energy and bandwidth.

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

How the composite score is calculated

How you compare

Drupal · 341 peers

You 68

Avg 73

At average

0 50 100

See full Drupal benchmark →

Axios · 26 peers

You 68

Avg 72

At average

0 50 100

Better than 3% of Axios sites See full Axios benchmark →

Top Priorities (5)

Content-Security-Policy header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

HSTS header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

No Content-Security-Policy header found

Security gaps expose your site and users to attacks, eroding trust.

Security › Content Security Policy

Page weighs 21.1 MB (12.4 MB transferred)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Budget

15 link(s) with no accessible text

Accessibility issues exclude users with disabilities — up to 15% of your potential audience.

Accessibility › Link & Button Quality

View fix priority matrix

Fix Priority Matrix

5 findings

Impact

Quick Wins

High impact, low effort — start here.

Strategic

High impact, requires investment.

Easy Improvements

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →

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Markdown

[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fdarpa.mil)](https://beavercheck.com/results/836bca8d-3e8c-4a80-b507-a28bb535879e)

HTML

<a href="https://beavercheck.com/results/836bca8d-3e8c-4a80-b507-a28bb535879e"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fdarpa.mil" alt="BeaverCheck Score"></a>

Image URL

https://beavercheck.com/badge?url=https%3A%2F%2Fdarpa.mil

This badge auto-updates with your latest scan result.

What fixing these means

Your site has several issues that may be affecting user experience and business outcomes. Your LCP of 27.7s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. Accessibility issues exclude users who rely on assistive technology — an estimated 15% of your potential audience. Addressing the critical issues below would have the most immediate impact on your user trust.

3 security gaps detected — browsers may warn visitors about your site.

Your LCP is 27.7s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.

1 accessibility issue excludes users who rely on assistive technology.

Could reach Estimate based on resolving critical issues

Conversion Barriers

2 critical 7 warning

9 barrier(s) likely increasing bounce by ~32%.

Speed (2)

Page takes 27.7s to load

+12% bounce

Users abandon at ~3s — you're 25.2s over the 2.5s threshold

Fix: Optimize render-blocking resources, preload the hero image, and compress images

Page feels frozen for 3.0s

+5% bounce

Clicks on the primary CTA are ignored while JavaScript runs

Fix: Break up long tasks; defer non-critical JavaScript to post-hydration

Trust (2)

No HSTS header

+1% bounce

Returning visitors are briefly exposed to downgrade attacks on first request

Fix: Set Strict-Transport-Security: max-age=31536000; includeSubDomains

No Content-Security-Policy header

+1% bounce

Higher XSS blast radius — one compromised script can exfiltrate the checkout form

Fix: Ship a reporting-only CSP first, then enforce once violations are clean

Usability (2)

Layout shifts during page load

+3% bounce

Content movement causes mis-clicks on CTAs and form fields

Fix: Add width/height to images; reserve space for late-loading embeds

2 form field(s) without a label

+4% bounce

Screen readers skip unlabeled fields; autofill can't identify them; checkout abandonment spikes

Fix: Associate every input with a visible <label for="…">; add autocomplete attributes

Content (2)

No structured data

+2% bounce

No rich-result eligibility in Google — lower SERP CTR vs competitors with stars and prices

Fix: Add JSON-LD for your page type (Product, Article, FAQPage, LocalBusiness, …)

Content is hard to read

+2% bounce

Graduate-level reading difficulty — limits the addressable audience for product or blog pages

Fix: Shorten sentences; replace jargon with plain language; target Flesch ease ≥60

Navigation (1)

15 link(s) with generic text ("click here", "read more")

+1% bounce

Screen-reader users navigating by link list see no context — and search engines can't infer relevance

Fix: Rewrite with descriptive phrases that identify the destination

Preliminary CRO audit — each barrier links to the tab with detailed analysis.

Return on Investment

$500 investment → $3.12/month returns + USD 157,500 risk avoided

Payback period: > 2 years First-year ROI: -93%

Investment

$500

5h · 5 findings

Monthly returns

$3.12 /mo

~$37 / year

Bandwidth savings $3.12

Regulatory risk avoided

USD 157,500

if kept compliant

ADA Title III USD 150,000
CCPA/CPRA USD 7,500

$150 — in quick wins — start here for the fastest payback

Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.

Full methodology & sources

Estimated Remediation Cost

$500

5.0 developer hours at $100/hr

Based on United States rates ($100/hr)

Quick wins

$150 3 fixes in ~90 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions

Custom rate

$ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

$13,128 / month at risk

~$157,537 / year if left unfixed

Compliance Risk

$157,500

ADA Title IIICCPA/CPRA

No privacy policy link detected
CCPA/CPRA: USD 2,500 – USD 7,500
Trackers detected but no cookie policy found
CCPA/CPRA: USD 2,500 – USD 7,500
Trackers detected but no privacy policy found
CCPA/CPRA: USD 2,500 – USD 7,500

+8 more

Bandwidth Waste

$3.12 /mo

38988.9 MB/mo × 0.080 USD/GB

Optimize transfer: save ~3.9 MB per page load
Saves $3.12/mo

Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.

Compliance methodology · SEO assumptions · Bandwidth model

Your performance is already good — improvements may show diminishing returns

Monthly visitors

Unique monthly visitors from your analytics

Conversion rate (%)

Purchases, signups, or key actions

Avg. order value

Optional — for revenue estimation

additional conversions/month

more engaged visitors from reduced bounce

potential monthly revenue

Current bounce (est.)

After fixes (est.)

Estimated bounce reduction

Fix 5 critical issues to capture this value

How this is calculated

Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.

Your site's LCP: → estimated after fixes.

These are estimates based on industry research — actual results vary

Bounce-rate model & assumptions

Your data stays in your browser — nothing is sent to our servers

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

Performance

Accessibility

Best Practices

100

SEO

Core Web Vitals

Key metrics that affect user experience.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

7.59 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

27.67 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

3.01 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.214

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

7.59 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

38.76 s

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

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

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
www.darpa.mil/sites/default/files/gallery/2025-10/arpanet-napkin-4.png	0.0 ms	1.7 MiB
www.darpa.mil/sites/default/files/gallery/2024-12/luke-arm-2024.jpg	0.0 ms	1.6 MiB
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/navbar.bundle.js?tdvso6	0.0 ms	857.4 KiB
/sites/default/files/css/css_5LiDfqPo9pjLoZYsLdmDjEvoQX8D...	0.0 ms	681.0 KiB
/themes/custom/darpa_uswds/assets/dist/js/contact_form_v2...	0.0 ms	376.7 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	364.8 KiB
/sites/default/files/styles/top_tabs_content_panel/public...	0.0 ms	342.8 KiB
www.darpa.mil/sites/default/files/gallery/2024-11/javelin-tank-breaker.jpg	0.0 ms	332.0 KiB
/sites/default/files/gallery/2025-11/nomars-home-page-her...	0.0 ms	330.3 KiB
/sites/default/files/gallery/2025-11/darpa-spotlight-live...	0.0 ms	308.8 KiB
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/carousel.bundle.js?tdvso6	0.0 ms	193.5 KiB
/themes/custom/darpa_uswds/assets/dist/js/recent_news.bun...	0.0 ms	171.3 KiB
www.darpa.mil/themes/custom/darpa_uswds/logo.svg	0.0 ms	158.6 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/col...	0.0 ms	153.2 KiB
/themes/custom/darpa_uswds/assets/js/react/18_3_1/react-d...	0.0 ms	130.1 KiB
/sites/default/files/styles/top_tabs_content_panel/public...	0.0 ms	92.3 KiB
www.darpa.mil/core/assets/vendor/jquery/jquery.min.js?v=3.7.1	0.0 ms	86.8 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	68.8 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	67.1 KiB
www.darpa.mil/core/misc/ajax.js?v=10.6.3	0.0 ms	66.2 KiB
/sites/default/files/styles/upcoming_events_slide/public/...	0.0 ms	63.2 KiB
/themes/custom/darpa_uswds/assets/dist/js/podcast_player....	0.0 ms	61.9 KiB
/themes/custom/darpa_uswds/assets/dist/js/upcoming_events...	0.0 ms	56.5 KiB
i.ytimg.com/vi/3tBE8qQl49g/sddefault.jpg	7200.0 s	44.2 KiB
/themes/custom/darpa_uswds/assets/js/assets/DARPA_Draft_L...	0.0 ms	29.1 KiB
/sites/default/files/styles/recent_news/public/gallery/20...	0.0 ms	28.9 KiB
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/top_tabs.bundle.js?tdvso6	0.0 ms	28.2 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	23.4 KiB
www.darpa.mil/core/misc/drupal.js?v=10.6.3	0.0 ms	21.8 KiB
/themes/custom/darpa_uswds/assets/dist/fonts/source-sans-...	0.0 ms	21.3 KiB
/themes/custom/darpa_uswds/assets/dist/fonts/source-sans-...	0.0 ms	21.1 KiB
/themes/custom/darpa_uswds/assets/dist/js/site_modal.bund...	0.0 ms	19.4 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	14.1 KiB
/sites/default/files/styles/medium_office_card_426x160/pu...	0.0 ms	13.7 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	13.2 KiB
/themes/custom/darpa_uswds/assets/js/react/18_3_1/react.p...	0.0 ms	11.7 KiB
/sites/default/files/styles/recent_news/public/gallery/20...	0.0 ms	11.1 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	9.5 KiB
www.darpa.mil/core/misc/message.js?v=10.6.3	0.0 ms	9.5 KiB
/Universal-Federated-Analytics-Min.js?agency=DOD&subagenc...	0.0 ms	9.4 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	7.4 KiB
www.darpa.mil/core/assets/vendor/tabbable/index.umd.min.js?v=6.3.0	0.0 ms	7.2 KiB
/sites/default/files/styles/recent_news/public/gallery/20...	0.0 ms	6.5 KiB
www.darpa.mil/core/misc/progress.js?v=10.6.3	0.0 ms	6.3 KiB
/sites/default/files/css/css_dHTSnv6R-NO3oLg2P0KNnvo0vksx...	0.0 ms	6.3 KiB
/sites/default/files/styles/medium_office_card_426x160/pu...	0.0 ms	6.3 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	6.2 KiB
www.darpa.mil/core/misc/announce.js?v=10.6.3	0.0 ms	5.4 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	4.9 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	4.8 KiB
dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js	0.0 ms	4.5 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	4.1 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	3.8 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	3.6 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	3.3 KiB
/themes/custom/darpa_uswds/assets/js/packages/usa_banner/...	0.0 ms	3.1 KiB
www.darpa.mil/core/assets/vendor/loadjs/loadjs.min.js?v=4.3.0	0.0 ms	3.0 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	3.0 KiB
www.darpa.mil/sites/default/files/2024-08/Group%2028418.svg	0.0 ms	2.8 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	2.7 KiB
www.darpa.mil/core/misc/debounce.js?v=10.6.3	0.0 ms	2.6 KiB
www.darpa.mil/core/assets/vendor/once/once.min.js?v=1.0.1	0.0 ms	2.5 KiB
www.darpa.mil/modules/contrib/google_tag/js/gtag.js?tdvso6	0.0 ms	2.5 KiB
www.darpa.mil/sites/default/files/2024-08/Small%20Business_icon.svg	0.0 ms	2.5 KiB
www.darpa.mil/modules/contrib/google_tag/js/gtm.js?tdvso6	0.0 ms	2.4 KiB
www.darpa.mil/sites/default/files/2024-08/Media%20and%20Reporters%20Icon.svg	0.0 ms	2.4 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	2.3 KiB
www.darpa.mil/sites/default/files/2024-08/universities_icon.svg	0.0 ms	2.3 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/ima...	0.0 ms	2.1 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/ima...	0.0 ms	2.1 KiB
www.darpa.mil/core/misc/drupal.init.js?v=10.6.3	0.0 ms	2.1 KiB
/sites/default/files/2024-08/Commercialization Partners i...	0.0 ms	2.1 KiB
www.darpa.mil/sites/default/files/2024-08/Defense%20and%20Government%20icon.svg	0.0 ms	2.1 KiB
/themes/custom/darpa_uswds/assets/js/packages/usa_banner/...	0.0 ms	1.9 KiB
www.darpa.mil/core/misc/drupalSettingsLoader.js?v=10.6.3	0.0 ms	1.9 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	1.8 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	1.8 KiB
/themes/custom/darpa_uswds/assets/js/packages/usa_banner/...	0.0 ms	1.8 KiB
www.darpa.mil/modules/contrib/google_tag/js/gtag.ajax.js?tdvso6	0.0 ms	1.7 KiB
/themes/custom/darpa_uswds/assets/dist/img/usa-icons-bg/s...	0.0 ms	1.5 KiB
www.darpa.mil/themes/contrib/stable/js/ajax.js?v=10.6.3	0.0 ms	1.5 KiB
/themes/custom/darpa_uswds/assets/js/packages/usa_banner/...	0.0 ms	1.4 KiB
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/img/usa-icons/close.svg	0.0 ms	1.4 KiB
/themes/custom/darpa_uswds/assets/dist/img/usa-icons/expa...	0.0 ms	1.3 KiB
static.doubleclick.net/instream/ad_status.js	900.0 s	495 B
www.gstatic.com/recaptcha/api2/logo_48.png	604800.0 s	2.3 KiB
static.doubleclick.net/instream/ad_status.js	900.0 s	0 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:0.21357] map[node:map[boundingRect:map[bottom:9029 height:8247 left:0 right:412 top:782 width:412] lhId:page-2-SECTION nodeLabel:Events All Events DARPAConnect Mission Connect: Michigan This one-day event, … path:1,HTML,1,BODY,2,DIV,0,DIV,3,MAIN,2,SECTION selector:div.dialog-off-canvas-main-canvas > div.layout-container > main > section.usa-section snippet:<section class="usa-section padding-top-0"> type:node] score:0.212254] map[score:0.001308] map[node:map[boundingRect:map[bottom:41 height:16 left:153 right:169 top:25 width:16] lhId:page-1-::after nodeLabel:div.usa-banner__inner > div.grid-col-fill > p.usa-banner__header-action > ::after path:1,HTML,1,BODY,2,DIV,0,DIV,1,SECTION,0,DIV,0,HEADER,0,DIV,1,DIV,1,P,0,::after selector:div.usa-banner__inner > div.grid-col-fill > p.usa-banner__header-action > ::after snippet:<::after> type:node] score:8e-06]]

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
/themes/custom/darpa_uswds/assets/dist/fonts/source-sans-...	135 ms
/themes/custom/darpa_uswds/assets/dist/fonts/source-sans-...	130 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	10 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBA.woff2	10 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	10 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:40.176 source:map[type:text value:[unattributed]]] map[reflowTime:1.491 source:map[column:380 line:580 type:source-location url:https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js urlProvider:network]] map[reflowTime:3.325 source:map[column:47 line:303 type:source-location url:https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js urlProvider:network]]]

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-0-DIV

nodeLabel: OUR MISSIONCreate Technological Surprise for National Security R&D Opportunities

path: 1,HTML,1,BODY,2,DIV,0,DIV,3,MAIN,1,SECTION,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV

selector: div#react-carousel > div#carousel-front-page > div.carousel-inner > div.carousel-item

snippet: <div class=" carousel-item" style="background: url("https://www.darpa.mil/sites/default/files/gallery/2024-11…");">

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

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
www.darpa.mil/core/misc/drupalSettingsLoader.js?v=10.6.3	1.9 KiB
www.darpa.mil/modules/contrib/google_tag/js/gtag.js?tdvso6	2.5 KiB
www.darpa.mil/modules/contrib/google_tag/js/gtm.js?tdvso6	2.4 KiB
/sites/default/files/css/css_5LiDfqPo9pjLoZYsLdmDjEvoQX8D...	681.0 KiB	3.5 s
/sites/default/files/css/css_dHTSnv6R-NO3oLg2P0KNnvo0vksx...	6.3 KiB
/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14....	1.1 KiB	761 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
	www.darpa.mil/sites/default/files/gallery/2025-10/arpanet-napkin-4.png	1.7 MiB	1.6 MiB
	www.darpa.mil/sites/default/files/gallery/2024-12/luke-arm-2024.jpg	1.6 MiB	1.6 MiB
	/sites/default/files/styles/top_tabs_content_panel/public...	341.2 KiB	296.1 KiB
	/sites/default/files/gallery/2025-11/nomars-home-page-her...	328.8 KiB	282.4 KiB
	/sites/default/files/gallery/2025-11/darpa-spotlight-live...	307.3 KiB	267.4 KiB
	/sites/default/files/styles/top_tabs_content_panel/public...	91.0 KiB	46.5 KiB
darpa-connect-2024 `div.upcoming-events-slide > div.row > div.padding-bottom-2 > img.image-style-upcoming-events-slide`	/sites/default/files/styles/upcoming_events_slide/public/...	61.9 KiB	31.5 KiB
DARPA logo `ul.flex > li > a.text-3xl > img.min-w-[100px]`	/themes/custom/darpa_uswds/assets/js/assets/DARPA_Draft_L...	27.9 KiB	24.6 KiB
Redefining Possible DARPA has pushed, and will continue to push, the boundarie… `div.usa-footer__primary-section > div.usa-footer__primary-container > div.grid-row > aside.tablet:grid-col`	/themes/custom/darpa_uswds/assets/dist/img/components/foo...	65.8 KiB	12.6 KiB

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: 1.0 s

URL	Time Spent
darpa.mil/	1.0 s
www.darpa.mil/	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.

Element	Layout shift score
Events All Events DARPAConnect Mission Connect: Michigan This one-day event, … `div.dialog-off-canvas-main-canvas > div.layout-container > main > section.usa-section`	0.212
	0.001
div.usa-banner__inner > div.grid-col-fill > p.usa-banner__header-action > ::after `div.usa-banner__inner > div.grid-col-fill > p.usa-banner__header-action > ::after`	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

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: 8.2 s 1.6 MiB

URL	Transfer Size	Est Savings
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/navbar.bundle.js?tdvso6	855.3 KiB	818.4 KiB
/themes/custom/darpa_uswds/assets/dist/js/contact_form_v2...	375.1 KiB	310.5 KiB
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/carousel.bundle.js?tdvso6	192.0 KiB	157.8 KiB
/themes/custom/darpa_uswds/assets/dist/js/recent_news.bun...	169.9 KiB	127.0 KiB
www.darpa.mil/core/misc/ajax.js?v=10.6.3	65.0 KiB	45.6 KiB
/themes/custom/darpa_uswds/assets/dist/js/podcast_player....	60.6 KiB	41.6 KiB
/themes/custom/darpa_uswds/assets/dist/js/upcoming_events...	55.2 KiB	39.1 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	67.5 KiB	31.0 KiB
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/top_tabs.bundle.js?tdvso6	27.0 KiB	18.4 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	22.2 KiB	16.4 KiB
www.darpa.mil/core/misc/drupal.js?v=10.6.3	20.6 KiB	16.2 KiB
/themes/custom/darpa_uswds/assets/dist/js/site_modal.bund...	18.2 KiB	13.9 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	12.9 KiB	6.1 KiB
www.darpa.mil/core/misc/message.js?v=10.6.3	8.2 KiB	5.5 KiB
www.darpa.mil/core/misc/progress.js?v=10.6.3	5.1 KiB	3.3 KiB
www.darpa.mil/core/misc/announce.js?v=10.6.3	4.2 KiB	3.2 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	5.0 KiB	3.1 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	8.3 KiB	2.8 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	3.6 KiB	2.6 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	6.2 KiB	2.4 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	3.7 KiB	2.1 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: 3.5 s 639.4 KiB

URL	Transfer Size	Est Savings
/sites/default/files/css/css_5LiDfqPo9pjLoZYsLdmDjEvoQX8D...	679.1 KiB	639.4 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.

Source: Google web.dev / Lighthouse

Estimated savings: 1.2 s 708.2 KiB

URL	Transfer Size	Est Savings
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	361.8 KiB	156.6 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e64k0	147.0 KiB	105.8 KiB
www.googletagmanager.com/gtag/js?id=G-4603P06FHC	173.3 KiB	64.9 KiB
www.darpa.mil/core/assets/vendor/jquery/jquery.min.js?v=3.7.1	85.5 KiB	64.8 KiB
www.googletagmanager.com/gtm.js?id=GTM-MPT8LFHZ	133.9 KiB	64.6 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L	147.0 KiB	62.2 KiB
/themes/custom/darpa_uswds/assets/js/react/18_3_1/react-d...	128.7 KiB	42.5 KiB
www.darpa.mil/core/misc/ajax.js?v=10.6.3	65.0 KiB	41.4 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	67.5 KiB	40.5 KiB
/themes/custom/darpa_uswds/assets/dist/js/recent_news.bun...	169.9 KiB	34.0 KiB
/themes/custom/darpa_uswds/assets/dist/js/contact_form_v2...	375.1 KiB	30.9 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.

URL	Total CPU Time	Script Evaluation	Script Parse
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	2.6 s	2.2 s	208 ms
www.darpa.mil/	2.0 s	40 ms	1.1 ms
Unattributable	1.5 s	28 ms	0.0 ms
/themes/custom/darpa_uswds/assets/js/react/18_3_1/react.p...	639 ms	507 ms	66 ms
www.googletagmanager.com/gtag/js?id=G-4603P06FHC	600 ms	475 ms	119 ms
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L	561 ms	434 ms	121 ms
www.googletagmanager.com/gtm.js?id=GTM-MPT8LFHZ	423 ms	358 ms	59 ms
/themes/custom/darpa_uswds/assets/js/react/18_3_1/react-d...	416 ms	80 ms	25 ms
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/navbar.bundle.js?tdvso6	229 ms	42 ms	170 ms
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/carousel.bundle.js?tdvso6	214 ms	158 ms	40 ms
dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js	114 ms	106 ms	4.2 ms
www.youtube.com/s/player/1bb6ee63/www-widgetapi.vflset/www-widgetapi.js	112 ms	103 ms	5.5 ms
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e64k0	103 ms	38 ms	64 ms
www.darpa.mil/core/assets/vendor/jquery/jquery.min.js?v=3.7.1	101 ms	71 ms	18 ms
/themes/custom/darpa_uswds/assets/dist/js/contact_form_v2...	87 ms	11 ms	70 ms
/sites/default/files/css/css_5LiDfqPo9pjLoZYsLdmDjEvoQX8D...	84 ms	0.0 ms	0.0 ms
/themes/custom/darpa_uswds/assets/dist/js/podcast_player....	70 ms	49 ms	17 ms
/Universal-Federated-Analytics-Min.js?agency=DOD&subagenc...	52 ms	42 ms	7.6 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.

Category	Time Spent
Script Evaluation	5.0 s
Other	2.2 s
Style & Layout	1.3 s
Script Parsing & Compilation	1.1 s
Rendering	338 ms
Parse HTML & CSS	228 ms
Garbage Collection	213 ms

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
www.darpa.mil/sites/default/files/gallery/2025-10/arpanet-napkin-4.png	1.7 MiB
www.darpa.mil/sites/default/files/gallery/2024-12/luke-arm-2024.jpg	1.6 MiB
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/navbar.bundle.js?tdvso6	857.4 KiB
/sites/default/files/css/css_5LiDfqPo9pjLoZYsLdmDjEvoQX8D...	681.0 KiB
www.youtube.com/s/player/1bb6ee63/player_embed.vflset/en_US/base.js	471.9 KiB
www.youtube.com/s/player/1bb6ee63/player_embed_es6.vflset/en_US/base.js	436.0 KiB
/themes/custom/darpa_uswds/assets/dist/js/contact_form_v2...	376.7 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	364.8 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	362.4 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	361.9 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
DARPA logo `ul.flex > li > a.text-3xl > img.min-w-[100px]`	/themes/custom/darpa_uswds/assets/js/assets/DARPA_Draft_L...
DARPA Logo `div.grid-row > div.grid-col-auto > a > img.mobile-lg:margin-x-auto`	/themes/custom/darpa_uswds/assets/dist/img/components/foo...
div#gov-banner-dot-mil > div.grid-row > div.usa-banner__guidance > img.usa-banner__icon `div#gov-banner-dot-mil > div.grid-row > div.usa-banner__guidance > img.usa-banner__icon`	/themes/custom/darpa_uswds/assets/js/packages/usa_banner/...
div#gov-banner-dot-mil > div.grid-row > div.usa-banner__guidance > img.usa-banner__icon `div#gov-banner-dot-mil > div.grid-row > div.usa-banner__guidance > img.usa-banner__icon`	/themes/custom/darpa_uswds/assets/js/packages/usa_banner/...
header.usa-banner__header > div.usa-banner__inner > div.grid-col-auto > img.usa-banner__header-flag `header.usa-banner__header > div.usa-banner__inner > div.grid-col-auto > img.usa-banner__header-flag`	/themes/custom/darpa_uswds/assets/js/packages/usa_banner/...
x social network `ul.social-media-list > li > a > img`	/themes/custom/darpa_uswds/assets/dist/img/components/foo...
Facebook icon `ul.social-media-list > li > a > img`	/themes/custom/darpa_uswds/assets/dist/img/components/foo...
YouTube icon `ul.social-media-list > li > a > img`	/themes/custom/darpa_uswds/assets/dist/img/components/foo...
Instagram Icon `ul.social-media-list > li > a > img`	/themes/custom/darpa_uswds/assets/dist/img/components/foo...
LinkedIn icon `ul.social-media-list > li > a > img`	/themes/custom/darpa_uswds/assets/dist/img/components/foo...
RSS icon `ul.social-media-list > li > a > img`	/themes/custom/darpa_uswds/assets/dist/img/components/foo...

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

●Minify CSS

●User Timing marks and measures 18 user timings

●Avoid long main-thread tasks 20 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 90 ms

●Server Backend Latencies 50 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 0 ms

○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.

ARIA

Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn more about valid values for ARIA attributes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
RACER \| 360° video `div#react-top-tabs > ul.usa-button-group > li.usa-button-group__item > button.usa-button`
Live Chain `div#react-top-tabs > ul.usa-button-group > li.usa-button-group__item > button.usa-button`
Podcast \| Ep 92 `div#react-top-tabs > ul.usa-button-group > li.usa-button-group__item > button.usa-button`

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.

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.grid-row > div.podcast-player-control > div.display-flex > button.play-pause-btn `div.grid-row > div.podcast-player-control > div.display-flex > button.play-pause-btn`

Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.podcast-player-control > div.display-flex > div.tracker-container > input#usa-range `div.podcast-player-control > div.display-flex > div.tracker-container > input#usa-range`

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.flex > div.flex > div.flex > a.items-center `div.flex > div.flex > div.flex > a.items-center`
div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button `div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button`
div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button `div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button`
div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button `div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button`
div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button `div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button`
div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button `div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button`
div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button `div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button`
div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button `div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button`
div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button `div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button`
div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button `div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button`
div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button `div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button`
div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button `div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button`
div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button `div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button`

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
For quantum computing, different qubits are better togeth… `a.news-container-link > div.mb-3 > div.news-content > h6`
DARPA newcomers `div.paragraph > div.usa-card__container > div.usa-card__header > h4`
Biological Technologies Office `div.grid-row > div.desktop:grid-col > div.technical-offices-card > h5.text-center`

These are opportunities to improve keyboard navigation in your application.

Contrast

Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Privacy Policy `form.width-full > div.grid-col-12 > p.reCAPTCHA-text > a`
Terms of Service `form.width-full > div.grid-col-12 > p.reCAPTCHA-text > a`

These are opportunities to improve the legibility of your content.

○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 are valid and not misspelled

●Image elements have `[alt]` attributes

●Input buttons have discernible text.

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

●Select elements have associated label elements.

●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

●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.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●All heading elements contain content.

●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 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

○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>`.

○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.

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.

Source	Description
www.googletagmanager.com/gtag/js?id=G-4603P06FHC line 263, col 390	Connecting to 'https://region1.google-analytics.com/g/collect?v=2&tid=G-4603P06FHC&gtm=45je64k0v884410340z89199778149za200zd884410340&_p=1776892530783&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&gdid=dMDhkMT&_eu=AAACAAQ&_prs=gs&are=1&cid=914039680.1776892532&frm=0&pscdl=noapi&rcb=10&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=2&tag_exp=0~115938465~115938468~117266400~117512542&sid=1776892532&sct=1&seg=1&dl=https%3A%2F%2Fwww.darpa.mil%2F&dt=Home%20%7C%20DARPA&_tu=QA&en=page_view&_c=1&_et=91&tfd=2364' violates the following Content Security Policy directive: "connect-src 'self' https://www.google.com https://www.google-analytics.com". The action has been blocked.
www.googletagmanager.com/gtag/js?id=G-4603P06FHC line 263, col 390	Connecting to 'https://region1.google-analytics.com/g/collect?v=2&tid=G-4603P06FHC&gtm=45je64k0v884410340za200zd884410340&_p=1776892530783&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&gdid=dMDhkMT&_prs=gs&are=1&cid=914039680.1776892532&frm=0&pscdl=noapi&rcb=10&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115938465~115938468~117266400~117512542&sid=1776892532&sct=1&seg=0&dl=https%3A%2F%2Fwww.darpa.mil%2F&dt=Home%20%7C%20DARPA&en=page_view&_fv=2&_nsi=1&_ss=2&_c=1&_ee=1&tfd=2265' violates the following Content Security Policy directive: "connect-src 'self' https://www.google.com https://www.google-analytics.com". The action has been blocked.
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L line 203, col 390	Connecting to 'https://region1.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L&gtm=45je64k0v9131934939za200zb884410340zd884410340&_p=1776892530783&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&gdid=dMDhkMT&_eu=AAAAAAQ&are=1&cid=914039680.1776892532&frm=0&pscdl=noapi&rcb=12&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&tag_exp=0~115616986~115938465~115938469~117266400~117384405~117512542&dl=https%3A%2F%2Fdarpa.mil%2F&dt=Home%20%7C%20DARPA&dr=&sid=1776892532&sct=1&seg=0&_tu=wA&_s=2&tfd=7538' violates the following Content Security Policy directive: "connect-src 'self' https://www.google.com https://www.google-analytics.com". The action has been blocked.
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L line 203, col 390	Connecting to 'https://region1.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L&gtm=45je64k0v9131934939za200zb884410340zd884410340&_p=1776892530783&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&gdid=dMDhkMT&are=1&cid=914039680.1776892532&frm=0&pscdl=noapi&rcb=12&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115616986~115938465~115938469~117266400~117384405~117512542&dl=https%3A%2F%2Fdarpa.mil%2F&dt=Home%20%7C%20DARPA&dr=&sid=1776892532&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_ss=1&_ee=1&ep.agency=DOD&ep.subagency=DARPA&ep.site_topic=unspecified%3Adarpa.mil&ep.site_platform=unspecified%3Adarpa.mil&ep.script_source=https%3A%2F%2Fdap.digitalgov.gov%2Funiversal-federated-analytics-min.js&ep.version=20250702%20v8.7%20-%20ga4&ep.protocol=https%3A&ep.using_parallel_tracker=no&ep.hostname_dimension=darpa.mil&tfd=2522' violates the following Content Security Policy directive: "connect-src 'self' https://www.google.com https://www.google-analytics.com". The action has been blocked.
www.googletagmanager.com/gtag/js?id=G-4603P06FHC line 263, col 390	Fetch API cannot load https://region1.google-analytics.com/g/collect?v=2&tid=G-4603P06FHC&gtm=45je64k0v884410340z89199778149za200zd884410340&_p=1776892530783&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&gdid=dMDhkMT&_eu=AAACAAQ&_prs=gs&are=1&cid=914039680.1776892532&frm=0&pscdl=noapi&rcb=10&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=2&tag_exp=0~115938465~115938468~117266400~117512542&sid=1776892532&sct=1&seg=1&dl=https%3A%2F%2Fwww.darpa.mil%2F&dt=Home%20%7C%20DARPA&_tu=QA&en=page_view&_c=1&_et=91&tfd=2364. Refused to connect because it violates the document's Content Security Policy.
www.googletagmanager.com/gtag/js?id=G-4603P06FHC line 263, col 390	Fetch API cannot load https://region1.google-analytics.com/g/collect?v=2&tid=G-4603P06FHC&gtm=45je64k0v884410340za200zd884410340&_p=1776892530783&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&gdid=dMDhkMT&_prs=gs&are=1&cid=914039680.1776892532&frm=0&pscdl=noapi&rcb=10&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115938465~115938468~117266400~117512542&sid=1776892532&sct=1&seg=0&dl=https%3A%2F%2Fwww.darpa.mil%2F&dt=Home%20%7C%20DARPA&en=page_view&_fv=2&_nsi=1&_ss=2&_c=1&_ee=1&tfd=2265. Refused to connect because it violates the document's Content Security Policy.
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L line 203, col 390	Fetch API cannot load https://region1.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L&gtm=45je64k0v9131934939za200zb884410340zd884410340&_p=1776892530783&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&gdid=dMDhkMT&_eu=AAAAAAQ&are=1&cid=914039680.1776892532&frm=0&pscdl=noapi&rcb=12&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&tag_exp=0~115616986~115938465~115938469~117266400~117384405~117512542&dl=https%3A%2F%2Fdarpa.mil%2F&dt=Home%20%7C%20DARPA&dr=&sid=1776892532&sct=1&seg=0&_tu=wA&_s=2&tfd=7538. Refused to connect because it violates the document's Content Security Policy.
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L line 203, col 390	Fetch API cannot load https://region1.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L&gtm=45je64k0v9131934939za200zb884410340zd884410340&_p=1776892530783&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&gdid=dMDhkMT&are=1&cid=914039680.1776892532&frm=0&pscdl=noapi&rcb=12&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115616986~115938465~115938469~117266400~117384405~117512542&dl=https%3A%2F%2Fdarpa.mil%2F&dt=Home%20%7C%20DARPA&dr=&sid=1776892532&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_ss=1&_ee=1&ep.agency=DOD&ep.subagency=DARPA&ep.site_topic=unspecified%3Adarpa.mil&ep.site_platform=unspecified%3Adarpa.mil&ep.script_source=https%3A%2F%2Fdap.digitalgov.gov%2Funiversal-federated-analytics-min.js&ep.version=20250702%20v8.7%20-%20ga4&ep.protocol=https%3A&ep.using_parallel_tracker=no&ep.hostname_dimension=darpa.mil&tfd=2522. Refused to connect because it violates the document's Content Security Policy.
	`Framing 'https://www.google.com/' violates the following report-only Content Security Policy directive: "frame-ancestors 'self'". The violation has been logged, but no further action has been taken.`

Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Issue type
Content security policy

●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

●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

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

100

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.

○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

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

Performance

Accessibility

Best Practices

100

SEO

Core Web Vitals

Key metrics that affect user experience. — Desktop

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.85 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

6.05 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

188 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

1.123

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

2.50 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

6.90 s

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.

Why this matters

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Source: Google web.dev / Lighthouse

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
www.darpa.mil/sites/default/files/gallery/2025-10/arpanet-napkin-4.png	0.0 ms	1.7 MiB
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/navbar.bundle.js?tdvso6	0.0 ms	857.4 KiB
/sites/default/files/css/css_5LiDfqPo9pjLoZYsLdmDjEvoQX8D...	0.0 ms	681.0 KiB
/themes/custom/darpa_uswds/assets/dist/js/contact_form_v2...	0.0 ms	376.7 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	364.9 KiB
/sites/default/files/styles/top_tabs_content_panel/public...	0.0 ms	342.8 KiB
www.darpa.mil/sites/default/files/gallery/2024-11/javelin-tank-breaker.jpg	0.0 ms	332.0 KiB
/sites/default/files/gallery/2025-11/nomars-home-page-her...	0.0 ms	330.3 KiB
/sites/default/files/gallery/2025-11/darpa-spotlight-live...	0.0 ms	308.9 KiB
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/carousel.bundle.js?tdvso6	0.0 ms	193.4 KiB
/themes/custom/darpa_uswds/assets/dist/js/recent_news.bun...	0.0 ms	171.3 KiB
www.darpa.mil/themes/custom/darpa_uswds/logo.svg	0.0 ms	158.6 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/col...	0.0 ms	153.2 KiB
/themes/custom/darpa_uswds/assets/js/react/18_3_1/react-d...	0.0 ms	130.1 KiB
i.ytimg.com/vi/3tBE8qQl49g/maxresdefault.jpg	7200.0 s	127.2 KiB
/sites/default/files/styles/top_tabs_content_panel/public...	0.0 ms	92.3 KiB
www.darpa.mil/core/assets/vendor/jquery/jquery.min.js?v=3.7.1	0.0 ms	86.8 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	68.8 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	67.1 KiB
www.darpa.mil/core/misc/ajax.js?v=10.6.3	0.0 ms	66.2 KiB
/sites/default/files/styles/upcoming_events_slide/public/...	0.0 ms	63.2 KiB
/themes/custom/darpa_uswds/assets/dist/js/podcast_player....	0.0 ms	61.9 KiB
/themes/custom/darpa_uswds/assets/dist/js/upcoming_events...	0.0 ms	56.5 KiB
/themes/custom/darpa_uswds/assets/js/assets/DARPA_Draft_L...	0.0 ms	29.1 KiB
/sites/default/files/styles/recent_news/public/gallery/20...	0.0 ms	28.9 KiB
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/top_tabs.bundle.js?tdvso6	0.0 ms	28.2 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	23.4 KiB
www.darpa.mil/core/misc/drupal.js?v=10.6.3	0.0 ms	21.8 KiB
/themes/custom/darpa_uswds/assets/dist/fonts/source-sans-...	0.0 ms	21.3 KiB
/themes/custom/darpa_uswds/assets/dist/fonts/source-sans-...	0.0 ms	21.1 KiB
/themes/custom/darpa_uswds/assets/dist/js/site_modal.bund...	0.0 ms	19.4 KiB
/sites/default/files/styles/medium_office_card_426x160/pu...	0.0 ms	16.7 KiB
/sites/default/files/styles/medium_office_card_426x160/pu...	0.0 ms	14.8 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	14.1 KiB
/sites/default/files/styles/medium_office_card_426x160/pu...	0.0 ms	13.7 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	13.2 KiB
/sites/default/files/styles/medium_office_card_426x160/pu...	0.0 ms	13.1 KiB
/themes/custom/darpa_uswds/assets/js/react/18_3_1/react.p...	0.0 ms	11.7 KiB
/sites/default/files/styles/recent_news/public/gallery/20...	0.0 ms	11.1 KiB
/sites/default/files/styles/medium_office_card_426x160/pu...	0.0 ms	9.9 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	9.5 KiB
www.darpa.mil/core/misc/message.js?v=10.6.3	0.0 ms	9.5 KiB
/Universal-Federated-Analytics-Min.js?agency=DOD&subagenc...	0.0 ms	9.4 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	7.4 KiB
www.darpa.mil/core/assets/vendor/tabbable/index.umd.min.js?v=6.3.0	0.0 ms	7.2 KiB
/sites/default/files/styles/recent_news/public/gallery/20...	0.0 ms	6.4 KiB
www.darpa.mil/core/misc/progress.js?v=10.6.3	0.0 ms	6.3 KiB
/sites/default/files/css/css_dHTSnv6R-NO3oLg2P0KNnvo0vksx...	0.0 ms	6.3 KiB
/sites/default/files/styles/medium_office_card_426x160/pu...	0.0 ms	6.3 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	6.2 KiB
www.darpa.mil/core/misc/announce.js?v=10.6.3	0.0 ms	5.4 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	4.9 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	4.8 KiB
dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js	0.0 ms	4.5 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	4.1 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	3.8 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	0.0 ms	3.6 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	3.3 KiB
/themes/custom/darpa_uswds/assets/js/packages/usa_banner/...	0.0 ms	3.1 KiB
www.darpa.mil/core/assets/vendor/loadjs/loadjs.min.js?v=4.3.0	0.0 ms	3.0 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	3.0 KiB
www.darpa.mil/sites/default/files/2024-08/Group%2028418.svg	0.0 ms	2.8 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	2.7 KiB
www.darpa.mil/core/misc/debounce.js?v=10.6.3	0.0 ms	2.6 KiB
www.darpa.mil/core/assets/vendor/once/once.min.js?v=1.0.1	0.0 ms	2.5 KiB
www.darpa.mil/modules/contrib/google_tag/js/gtag.js?tdvso6	0.0 ms	2.5 KiB
www.darpa.mil/sites/default/files/2024-08/Small%20Business_icon.svg	0.0 ms	2.5 KiB
www.darpa.mil/modules/contrib/google_tag/js/gtm.js?tdvso6	0.0 ms	2.4 KiB
www.darpa.mil/sites/default/files/2024-08/Media%20and%20Reporters%20Icon.svg	0.0 ms	2.4 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	2.3 KiB
www.darpa.mil/sites/default/files/2024-08/universities_icon.svg	0.0 ms	2.3 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/ima...	0.0 ms	2.1 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/ima...	0.0 ms	2.1 KiB
www.darpa.mil/core/misc/drupal.init.js?v=10.6.3	0.0 ms	2.1 KiB
/sites/default/files/2024-08/Commercialization Partners i...	0.0 ms	2.1 KiB
www.darpa.mil/sites/default/files/2024-08/Defense%20and%20Government%20icon.svg	0.0 ms	2.1 KiB
/themes/custom/darpa_uswds/assets/js/packages/usa_banner/...	0.0 ms	1.9 KiB
www.darpa.mil/core/misc/drupalSettingsLoader.js?v=10.6.3	0.0 ms	1.9 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	1.8 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	0.0 ms	1.8 KiB
/themes/custom/darpa_uswds/assets/js/packages/usa_banner/...	0.0 ms	1.8 KiB
www.darpa.mil/modules/contrib/google_tag/js/gtag.ajax.js?tdvso6	0.0 ms	1.7 KiB
/themes/custom/darpa_uswds/assets/dist/img/usa-icons-bg/s...	0.0 ms	1.5 KiB
www.darpa.mil/themes/contrib/stable/js/ajax.js?v=10.6.3	0.0 ms	1.5 KiB
/themes/custom/darpa_uswds/assets/js/packages/usa_banner/...	0.0 ms	1.4 KiB
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/img/usa-icons/close.svg	0.0 ms	1.4 KiB
/themes/custom/darpa_uswds/assets/dist/img/usa-icons/expa...	0.0 ms	1.3 KiB
static.doubleclick.net/instream/ad_status.js	900.0 s	495 B
www.gstatic.com/recaptcha/api2/logo_48.png	604800.0 s	2.3 KiB
static.doubleclick.net/instream/ad_status.js	900.0 s	0 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.

items: [map[node:map[type:text value:Total] score:1.12299] map[node:map[boundingRect:map[bottom:6358 height:6328 left:0 right:1350 top:30 width:1350] lhId:page-2-MAIN nodeLabel:TRANSFORM NAPKIN SKETCHES INTO World-Changing Technologies Work with DARPA … path:1,HTML,1,BODY,2,DIV,0,DIV,3,MAIN selector:body.page-front > div.dialog-off-canvas-main-canvas > div.layout-container > main snippet:<main role="main"> type:node] score:0.968085] map[node:map[boundingRect:map[bottom:6358 height:5501 left:0 right:1350 top:857 width:1350] lhId:page-3-SECTION nodeLabel:Events All Events DARPAConnect Mission Connect: Michigan This one-day event, o… path:1,HTML,1,BODY,2,DIV,0,DIV,3,MAIN,2,SECTION selector:div.dialog-off-canvas-main-canvas > div.layout-container > main > section.usa-section snippet:<section class="usa-section padding-top-0"> type:node] score:0.078382] map[node:map[boundingRect:map[bottom:2380 height:674 left:0 right:1350 top:1706 width:1350] lhId:page-4-DIV nodeLabel:Latest from DARPA RACER | 360° video Live Chain Podcast | Ep 92 Ride along with… path:1,HTML,1,BODY,2,DIV,0,DIV,3,MAIN,2,SECTION,1,DIV,0,DIV,0,DIV,0,ARTICLE,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV selector:div.field > div.field__item > div.content-width-x-large > div.grid-col-fill snippet:<div class="grid-col-fill"> type:node] score:0.074393] map[score:0.00213]]

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
/themes/custom/darpa_uswds/assets/dist/fonts/source-sans-...	65 ms
/themes/custom/darpa_uswds/assets/dist/fonts/source-sans-...	60 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBA.woff2	15 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	10 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	10 ms

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:180.073 source:map[type:text value:[unattributed]]] map[reflowTime:1.515 source:map[column:380 line:580 type:source-location url:https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js urlProvider:network]] map[reflowTime:2.435 source:map[column:47 line:303 type:source-location url:https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js urlProvider:network]]]

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-0-DIV

nodeLabel: OUR MISSIONCreate Technological Surprise for National Security R&D Opportunities

path: 1,HTML,1,BODY,2,DIV,0,DIV,3,MAIN,1,SECTION,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV

selector: div#react-carousel > div#carousel-front-page > div.carousel-inner > div.carousel-item

snippet: <div class=" carousel-item" style="background: url("https://www.darpa.mil/sites/default/files/gallery/2024-11…");">

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.

title: Preconnected origins

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
/sites/default/files/css/css_5LiDfqPo9pjLoZYsLdmDjEvoQX8D...	681.0 KiB	575 ms
/sites/default/files/css/css_dHTSnv6R-NO3oLg2P0KNnvo0vksx...	6.3 KiB
www.darpa.mil/modules/contrib/google_tag/js/gtm.js?tdvso6	2.4 KiB
/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14....	1.1 KiB	215 ms
www.darpa.mil/modules/contrib/google_tag/js/gtag.js?tdvso6	2.5 KiB
www.darpa.mil/core/misc/drupalSettingsLoader.js?v=10.6.3	1.9 KiB

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
	www.darpa.mil/sites/default/files/gallery/2025-10/arpanet-napkin-4.png	1.7 MiB	1.5 MiB
	/sites/default/files/styles/top_tabs_content_panel/public...	341.2 KiB	299.1 KiB
	/sites/default/files/gallery/2025-11/darpa-spotlight-live...	307.3 KiB	167.3 KiB
	/sites/default/files/gallery/2025-11/nomars-home-page-her...	328.8 KiB	166.2 KiB
	/sites/default/files/styles/top_tabs_content_panel/public...	91.0 KiB	49.4 KiB
darpa-connect-2024 `div.upcoming-events-slide > div.row > div.padding-bottom-2 > img.image-style-upcoming-events-slide`	/sites/default/files/styles/upcoming_events_slide/public/...	61.9 KiB	31.5 KiB
DARPA logo `ul.flex > li > a.text-3xl > img.min-w-[100px]`	/themes/custom/darpa_uswds/assets/js/assets/DARPA_Draft_L...	27.9 KiB	25.8 KiB
bio-attribution-challenge `a.news-container-link > div.mb-3 > div.news-media > img.image-style-recent-news`	/sites/default/files/styles/recent_news/public/gallery/20...	27.7 KiB	21.0 KiB
div.grid-row > div.desktop:grid-col > div.technical-offices-card > img.img-round-corner `div.grid-row > div.desktop:grid-col > div.technical-offices-card > img.img-round-corner`	/sites/default/files/styles/medium_office_card_426x160/pu...	15.5 KiB	5.7 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: 465 ms

URL	Time Spent
darpa.mil/	465 ms
www.darpa.mil/	0.0 ms

Why this matters

Performance issues directly impact user engagement and conversion rates.

Element	Layout shift score
TRANSFORM NAPKIN SKETCHES INTO World-Changing Technologies Work with DARPA … `body.page-front > div.dialog-off-canvas-main-canvas > div.layout-container > main`	0.968
Events All Events DARPAConnect Mission Connect: Michigan This one-day event, o… `div.dialog-off-canvas-main-canvas > div.layout-container > main > section.usa-section`	0.078
Latest from DARPA RACER \| 360° video Live Chain Podcast \| Ep 92 Ride along with… `div.field > div.field__item > div.content-width-x-large > div.grid-col-fill`	0.074
	0.002

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 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: 1.3 s 1.6 MiB

URL	Transfer Size	Est Savings
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/navbar.bundle.js?tdvso6	855.3 KiB	818.4 KiB
/themes/custom/darpa_uswds/assets/dist/js/contact_form_v2...	375.1 KiB	310.5 KiB
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/carousel.bundle.js?tdvso6	192.0 KiB	157.8 KiB
/themes/custom/darpa_uswds/assets/dist/js/recent_news.bun...	169.9 KiB	127.0 KiB
www.darpa.mil/core/misc/ajax.js?v=10.6.3	65.0 KiB	45.6 KiB
/themes/custom/darpa_uswds/assets/dist/js/podcast_player....	60.6 KiB	41.6 KiB
/themes/custom/darpa_uswds/assets/dist/js/upcoming_events...	55.2 KiB	39.1 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	67.5 KiB	31.0 KiB
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/top_tabs.bundle.js?tdvso6	27.0 KiB	18.4 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	22.2 KiB	16.4 KiB
www.darpa.mil/core/misc/drupal.js?v=10.6.3	20.6 KiB	16.2 KiB
/themes/custom/darpa_uswds/assets/dist/js/site_modal.bund...	18.2 KiB	13.9 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	12.9 KiB	6.1 KiB
www.darpa.mil/core/misc/message.js?v=10.6.3	8.2 KiB	5.5 KiB
www.darpa.mil/core/misc/progress.js?v=10.6.3	5.1 KiB	3.3 KiB
www.darpa.mil/core/misc/announce.js?v=10.6.3	4.2 KiB	3.2 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	5.0 KiB	3.1 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	8.3 KiB	2.8 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	3.6 KiB	2.6 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	6.2 KiB	2.4 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	3.7 KiB	2.1 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: 570 ms 636.3 KiB

URL	Transfer Size	Est Savings
/sites/default/files/css/css_5LiDfqPo9pjLoZYsLdmDjEvoQX8D...	679.1 KiB	636.3 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

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

Source: Google web.dev / Lighthouse

Estimated savings: 210 ms 708.2 KiB

URL	Transfer Size	Est Savings
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	361.8 KiB	156.6 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e64k0h1	147.0 KiB	105.8 KiB
www.googletagmanager.com/gtag/js?id=G-4603P06FHC	173.2 KiB	64.9 KiB
www.darpa.mil/core/assets/vendor/jquery/jquery.min.js?v=3.7.1	85.5 KiB	64.8 KiB
www.googletagmanager.com/gtm.js?id=GTM-MPT8LFHZ	133.9 KiB	64.6 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L	147.0 KiB	62.2 KiB
/themes/custom/darpa_uswds/assets/js/react/18_3_1/react-d...	128.7 KiB	42.5 KiB
www.darpa.mil/core/misc/ajax.js?v=10.6.3	65.0 KiB	41.4 KiB
/themes/custom/darpa_uswds/assets/js/sdk/aws_v2/apiGatewa...	67.5 KiB	40.5 KiB
/themes/custom/darpa_uswds/assets/dist/js/recent_news.bun...	169.9 KiB	34.0 KiB
/themes/custom/darpa_uswds/assets/dist/js/contact_form_v2...	375.1 KiB	30.9 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.

URL	Total CPU Time	Script Evaluation	Script Parse
www.darpa.mil/	630 ms	6.1 ms	0.2 ms
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	591 ms	480 ms	60 ms
Unattributable	390 ms	7.9 ms	0.0 ms
www.googletagmanager.com/gtag/js?id=G-4603P06FHC	196 ms	169 ms	25 ms
/themes/custom/darpa_uswds/assets/js/react/18_3_1/react.p...	180 ms	158 ms	0.6 ms
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L	153 ms	110 ms	23 ms
www.googletagmanager.com/gtm.js?id=GTM-MPT8LFHZ	142 ms	118 ms	22 ms
/themes/custom/darpa_uswds/assets/js/react/18_3_1/react-d...	131 ms	29 ms	6.1 ms
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/navbar.bundle.js?tdvso6	59 ms	9.8 ms	45 ms
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/carousel.bundle.js?tdvso6	52 ms	37 ms	11 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.

Category	Time Spent
Script Evaluation	1.3 s
Other	681 ms
Style & Layout	364 ms
Script Parsing & Compilation	282 ms
Garbage Collection	79 ms
Rendering	67 ms
Parse HTML & CSS	62 ms

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
www.darpa.mil/sites/default/files/gallery/2025-10/arpanet-napkin-4.png	1.7 MiB
www.darpa.mil/themes/custom/darpa_uswds/assets/dist/js/navbar.bundle.js?tdvso6	857.4 KiB
/sites/default/files/css/css_5LiDfqPo9pjLoZYsLdmDjEvoQX8D...	681.0 KiB
www.youtube.com/s/player/1bb6ee63/player_embed.vflset/en_US/base.js	471.9 KiB
www.youtube.com/s/player/1bb6ee63/player_embed_es6.vflset/en_US/base.js	436.0 KiB
/themes/custom/darpa_uswds/assets/dist/js/contact_form_v2...	376.7 KiB
/themes/custom/darpa_uswds/assets/dist/img/components/foo...	364.9 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	362.4 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	361.9 KiB
/sites/default/files/styles/top_tabs_content_panel/public...	342.8 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
DARPA logo `ul.flex > li > a.text-3xl > img.min-w-[100px]`	/themes/custom/darpa_uswds/assets/js/assets/DARPA_Draft_L...
DARPA Logo `div.grid-row > div.grid-col-auto > a > img.mobile-lg:margin-x-auto`	/themes/custom/darpa_uswds/assets/dist/img/components/foo...
div#gov-banner-dot-mil > div.grid-row > div.usa-banner__guidance > img.usa-banner__icon `div#gov-banner-dot-mil > div.grid-row > div.usa-banner__guidance > img.usa-banner__icon`	/themes/custom/darpa_uswds/assets/js/packages/usa_banner/...
div#gov-banner-dot-mil > div.grid-row > div.usa-banner__guidance > img.usa-banner__icon `div#gov-banner-dot-mil > div.grid-row > div.usa-banner__guidance > img.usa-banner__icon`	/themes/custom/darpa_uswds/assets/js/packages/usa_banner/...
header.usa-banner__header > div.usa-banner__inner > div.grid-col-auto > img.usa-banner__header-flag `header.usa-banner__header > div.usa-banner__inner > div.grid-col-auto > img.usa-banner__header-flag`	/themes/custom/darpa_uswds/assets/js/packages/usa_banner/...
x social network `ul.social-media-list > li > a > img`	/themes/custom/darpa_uswds/assets/dist/img/components/foo...
Facebook icon `ul.social-media-list > li > a > img`	/themes/custom/darpa_uswds/assets/dist/img/components/foo...
YouTube icon `ul.social-media-list > li > a > img`	/themes/custom/darpa_uswds/assets/dist/img/components/foo...
Instagram Icon `ul.social-media-list > li > a > img`	/themes/custom/darpa_uswds/assets/dist/img/components/foo...
LinkedIn icon `ul.social-media-list > li > a > img`	/themes/custom/darpa_uswds/assets/dist/img/components/foo...
RSS icon `ul.social-media-list > li > a > img`	/themes/custom/darpa_uswds/assets/dist/img/components/foo...

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

●Max Potential First Input Delay 100 ms

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●User Timing marks and measures 18 user timings

●Avoid long main-thread tasks 11 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 90 ms

●Server Backend Latencies 20 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

Accessibility

ARIA

Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn more about valid values for ARIA attributes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
RACER \| 360° video `div#react-top-tabs > ul.usa-button-group > li.usa-button-group__item > button.usa-button`
Live Chain `div#react-top-tabs > ul.usa-button-group > li.usa-button-group__item > button.usa-button`
Podcast \| Ep 92 `div#react-top-tabs > ul.usa-button-group > li.usa-button-group__item > button.usa-button`

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.

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.grid-row > div.podcast-player-control > div.display-flex > button.rewind `div.grid-row > div.podcast-player-control > div.display-flex > button.rewind`
div.grid-row > div.podcast-player-control > div.display-flex > button.play-pause-btn `div.grid-row > div.podcast-player-control > div.display-flex > button.play-pause-btn`
div.grid-row > div.podcast-player-control > div.display-flex > button.forward `div.grid-row > div.podcast-player-control > div.display-flex > button.forward`
div.grid-row > div.podcast-player-control > div.display-flex > button.vol-control `div.grid-row > div.podcast-player-control > div.display-flex > button.vol-control`

Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.podcast-player-control > div.display-flex > div.tracker-container > input#usa-range `div.podcast-player-control > div.display-flex > div.tracker-container > input#usa-range`

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
ul.xl:flex > li.flex > div.flex > a.items-center `ul.xl:flex > li.flex > div.flex > a.items-center`
div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button `div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button`
div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button `div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button`
div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button `div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button`
div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button `div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button`
div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button `div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button`
div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button `div.paragraph > div.usa-card__container > div.usa-card__footer > a.usa-button`
div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button `div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button`
div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button `div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button`
div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button `div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button`
div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button `div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button`
div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button `div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button`
div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button `div.grid-row > div.desktop:grid-col > div.technical-offices-card > a.usa-button`

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
For quantum computing, different qubits are better togeth… `a.news-container-link > div.mb-3 > div.news-content > h6`
`div.podcast-player-content > div.display-flex > div.episode-status > h6.playback-status`
DARPA newcomers `div.paragraph > div.usa-card__container > div.usa-card__header > h4`
Biological Technologies Office `div.grid-row > div.desktop:grid-col > div.technical-offices-card > h5.text-center`

These are opportunities to improve keyboard navigation in your application.

Contrast

Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Privacy Policy `form.width-full > div.grid-col-12 > p.reCAPTCHA-text > a`
Terms of Service `form.width-full > div.grid-col-12 > p.reCAPTCHA-text > a`

These are opportunities to improve the legibility of your content.

○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 are valid and not misspelled

●Image elements have `[alt]` attributes

●Input buttons have discernible text.

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

●Select elements have associated label elements.

●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

●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.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●All heading elements contain content.

●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 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

○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>`.

○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.

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.

Source	Description
www.googletagmanager.com/gtag/js?id=G-4603P06FHC line 263, col 390	Connecting to 'https://region1.google-analytics.com/g/collect?v=2&tid=G-4603P06FHC&gtm=45je64k0h1v884410340z89199778149za200zd884410340&_p=1776892559781&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&gdid=dMDhkMT&_eu=AAACAAQ&_prs=gs&are=1&cid=632977761.1776892561&frm=0&pscdl=noapi&rcb=9&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=2&tag_exp=0~115938466~115938469~117266401~117512542&sid=1776892561&sct=1&seg=1&dl=https%3A%2F%2Fwww.darpa.mil%2F&dt=Home%20%7C%20DARPA&_tu=QA&en=page_view&_c=1&_et=146&tfd=2907' violates the following Content Security Policy directive: "connect-src 'self' https://www.google.com https://www.google-analytics.com". The action has been blocked.
www.googletagmanager.com/gtag/js?id=G-4603P06FHC line 263, col 390	Connecting to 'https://region1.google-analytics.com/g/collect?v=2&tid=G-4603P06FHC&gtm=45je64k0h1v884410340za200zd884410340&_p=1776892559781&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&gdid=dMDhkMT&_prs=gs&are=1&cid=632977761.1776892561&frm=0&pscdl=noapi&rcb=9&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938469~117266401~117512542&sid=1776892561&sct=1&seg=0&dl=https%3A%2F%2Fwww.darpa.mil%2F&dt=Home%20%7C%20DARPA&en=page_view&_fv=2&_nsi=1&_ss=2&_c=1&_ee=1&tfd=2749' violates the following Content Security Policy directive: "connect-src 'self' https://www.google.com https://www.google-analytics.com". The action has been blocked.
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L line 203, col 390	Connecting to 'https://region1.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L&gtm=45je64k0h1v9131934939za200zb884410340zd884410340&_p=1776892559781&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&gdid=dMDhkMT&_eu=AAAAAAQ&are=1&cid=632977761.1776892561&frm=0&pscdl=noapi&rcb=5&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&tag_exp=0~115938466~115938468~117266400~117512542~118167059&dl=https%3A%2F%2Fdarpa.mil%2F&dt=Home%20%7C%20DARPA&dr=&sid=1776892561&sct=1&seg=0&_tu=wA&_s=2&tfd=8103' violates the following Content Security Policy directive: "connect-src 'self' https://www.google.com https://www.google-analytics.com". The action has been blocked.
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L line 203, col 390	Connecting to 'https://region1.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L&gtm=45je64k0h1v9131934939za200zb884410340zd884410340&_p=1776892559781&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&gdid=dMDhkMT&are=1&cid=632977761.1776892561&frm=0&pscdl=noapi&rcb=5&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938468~117266400~117512542~118167059&dl=https%3A%2F%2Fdarpa.mil%2F&dt=Home%20%7C%20DARPA&dr=&sid=1776892561&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_ss=1&_ee=1&ep.agency=DOD&ep.subagency=DARPA&ep.site_topic=unspecified%3Adarpa.mil&ep.site_platform=unspecified%3Adarpa.mil&ep.script_source=https%3A%2F%2Fdap.digitalgov.gov%2Funiversal-federated-analytics-min.js&ep.version=20250702%20v8.7%20-%20ga4&ep.protocol=https%3A&ep.using_parallel_tracker=no&ep.hostname_dimension=darpa.mil&tfd=3088' violates the following Content Security Policy directive: "connect-src 'self' https://www.google.com https://www.google-analytics.com". The action has been blocked.
www.googletagmanager.com/gtag/js?id=G-4603P06FHC line 263, col 390	Fetch API cannot load https://region1.google-analytics.com/g/collect?v=2&tid=G-4603P06FHC&gtm=45je64k0h1v884410340z89199778149za200zd884410340&_p=1776892559781&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&gdid=dMDhkMT&_eu=AAACAAQ&_prs=gs&are=1&cid=632977761.1776892561&frm=0&pscdl=noapi&rcb=9&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=2&tag_exp=0~115938466~115938469~117266401~117512542&sid=1776892561&sct=1&seg=1&dl=https%3A%2F%2Fwww.darpa.mil%2F&dt=Home%20%7C%20DARPA&_tu=QA&en=page_view&_c=1&_et=146&tfd=2907. Refused to connect because it violates the document's Content Security Policy.
www.googletagmanager.com/gtag/js?id=G-4603P06FHC line 263, col 390	Fetch API cannot load https://region1.google-analytics.com/g/collect?v=2&tid=G-4603P06FHC&gtm=45je64k0h1v884410340za200zd884410340&_p=1776892559781&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&gdid=dMDhkMT&_prs=gs&are=1&cid=632977761.1776892561&frm=0&pscdl=noapi&rcb=9&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938469~117266401~117512542&sid=1776892561&sct=1&seg=0&dl=https%3A%2F%2Fwww.darpa.mil%2F&dt=Home%20%7C%20DARPA&en=page_view&_fv=2&_nsi=1&_ss=2&_c=1&_ee=1&tfd=2749. Refused to connect because it violates the document's Content Security Policy.
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L line 203, col 390	Fetch API cannot load https://region1.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L&gtm=45je64k0h1v9131934939za200zb884410340zd884410340&_p=1776892559781&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&gdid=dMDhkMT&_eu=AAAAAAQ&are=1&cid=632977761.1776892561&frm=0&pscdl=noapi&rcb=5&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&tag_exp=0~115938466~115938468~117266400~117512542~118167059&dl=https%3A%2F%2Fdarpa.mil%2F&dt=Home%20%7C%20DARPA&dr=&sid=1776892561&sct=1&seg=0&_tu=wA&_s=2&tfd=8103. Refused to connect because it violates the document's Content Security Policy.
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L line 203, col 390	Fetch API cannot load https://region1.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L&gtm=45je64k0h1v9131934939za200zb884410340zd884410340&_p=1776892559781&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&gdid=dMDhkMT&are=1&cid=632977761.1776892561&frm=0&pscdl=noapi&rcb=5&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938468~117266400~117512542~118167059&dl=https%3A%2F%2Fdarpa.mil%2F&dt=Home%20%7C%20DARPA&dr=&sid=1776892561&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_ss=1&_ee=1&ep.agency=DOD&ep.subagency=DARPA&ep.site_topic=unspecified%3Adarpa.mil&ep.site_platform=unspecified%3Adarpa.mil&ep.script_source=https%3A%2F%2Fdap.digitalgov.gov%2Funiversal-federated-analytics-min.js&ep.version=20250702%20v8.7%20-%20ga4&ep.protocol=https%3A&ep.using_parallel_tracker=no&ep.hostname_dimension=darpa.mil&tfd=3088. Refused to connect because it violates the document's Content Security Policy.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Issue type
Content security policy

●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

●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

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

100

SEO

○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

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

Results for https://darpa.mil

Site Health

How you compare

Top Priorities (5)

Fix Priority Matrix

Quick Wins

Strategic

Easy Improvements

Deprioritize

What fixing these means

Conversion Barriers

Speed (2)

Trust (2)

Usability (2)

Content (2)

Navigation (1)

Return on Investment

Investment

Monthly returns

Regulatory risk avoided

Estimated Remediation Cost

Cost by category

Cost by effort level

What Inaction Is Costing You

Compliance Risk

Bandwidth Waste

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

ARIA

Names and labels

Navigation

Contrast

Best Practices

General

SEO

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

ARIA

Names and labels

Navigation

Contrast

Best Practices

General

SEO

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