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https://commerce.gov

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
3
REVIEW
0
PASS
10
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
72
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
90
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
40
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

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

406 ms

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

1.06 s

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

728 ms

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

0.001

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

818 ms

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

5.16 s

Page Load Progression

605 ms
1.2 s
1.8 s
2.4 s
3.0 s
3.6 s
4.2 s
4.8 s
Checks
15
10 PASS 3 FIX
D
Third-Party Impact
Action
81% third-party, 0 ms blocking
FIX
81% third-party, 0 ms blocking
Warning::
Third-party code accounts for 81% of page weight (418.7 KiB of 515.4 KiB)
Info::
Third-party blocking time is low (0 ms)
19%
81%
First-party Third-party
F
JS Execution Cost
Action
4716ms total JS execution
FIX
4716ms total JS execution
Warning::
https://commerce.gov/cdn-cgi/challenge-platform/h/...: 4502ms CPU time
Info::
Unattributable: 214ms CPU time
Info::
Third-party scripts: 214ms (5% of total)

Main Thread Breakdown

Script Evaluation 94% Other 4%
ScriptTotalScriptingParse/CompileParty
https://commerce.gov/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9f07b96cce4a42254502ms4440ms8ms1st
Unattributable214ms46ms0ms3rd
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

A+
Page Weight Budget
515 KB transferred, 21 requests
PASS
515 KB transferred, 21 requests
Info::
Page weighs 929 KB (515 KB transferred)
Info::
21 HTTP requests
Info::
Estimated 0.11 g CO2 per page load
515 KB / 2.4 MB budget
515 KB transferred
21 requests
0.11 g CO2 per page load
Other 308.2 KiB 60%
JavaScript 98.4 KiB 19%
HTML 97.2 KiB 19%
Images 6.5 KiB 1%
Other 3.5 KiB 1%
Other 1.7 KiB 0%
0 2.4 MB 4.9 MB
Under budget
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A
Image Optimization
3 images, 0 KB saveable
PASS
3 images, 0 KB saveable
Info::
All images are well-optimized
3 images 7 KB
0 oversized -0 KB
3 legacy format
0 missing dimensions CLS risk
A+
Font Loading
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
A+
JS Bundles
9 scripts, 0 KB unused
PASS
9 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312451611 KB—✓3rd
https://commerce.gov/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9f07b96cce4a422570 KB—✓1st
blob:https://commerce.gov/1fdcea61-7876-43b2-a8a3-f7efd1dd61830 KB—✓3rd
https://challenges.cloudflare.com/turnstile/v0/b/0b8fb825cb67/api.js?onload=cFRiY3&render=explicit17 KB—✓3rd
blob:https://commerce.gov/ce505145-d6c4-420e-8c60-15f485a1cbc9-0 KB—✓3rd
blob:https://challenges.cloudflare.com/ee7c292e-1bef-459d-b6d0-cdeaa7977ce90 KB—✓3rd
blob:https://challenges.cloudflare.com/d5e579bd-4770-438a-9229-da527034cb33-0 KB—✓3rd
blob:https://challenges.cloudflare.com/d5e579bd-4770-438a-9229-da527034cb33-0 KB—✓3rd
blob:https://challenges.cloudflare.com/3bee92e2-968a-4919-adba-fa7c51030ca6-0 KB—✓3rd
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A
Page Weight Inventory
21 resources · 515 KB · 0 KB savings available
PASS
21 resources · 515 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 515 KB
Warning::
14 third-party resources (81% of weight)
Info::
1 resources over 200KB
21 resources · 515.4 KiB · 14 third-party Within 1MB page-weight target
Other 60% · 309.9 KiB
Document 20% · 100.6 KiB
JavaScript 19% · 98.4 KiB
Image 1% · 6.5 KiB
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
21 requests over 4356ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 406 ms LCP 1.1 shttps://commerce.gov// https://commerce.gov/ — 307 — 62 B — 332 ms — http/1.1https://commerce.gov// https://commerce.gov/ — 403 — 3.7 KiB — 85 ms — h2https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 — 200 — 10.7 KiB — 46 ms — h2https://commerce.gov/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9f07b96cce4a4225/cdn-cgi/challenge-platform/h/b/orc... https://commerce.gov/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9f07b96cce4a4225 — 200 — 70.3 KiB — 124 ms — h2blob:https://commerce.gov/1fdcea61-7876-43b2-a8a3-f7efd1dd6183commerce.gov/1fdcea61-7876-43b2-a8a... blob:https://commerce.gov/1fdcea61-7876-43b2-a8a3-f7efd1dd6183 — -1 — 0 B — 0 ms — https://challenges.cloudflare.com/turnstile/v0/b/0b8fb825cb67/api.js?onload=cFRiY3&render=explicitchallenges.cloudflare.com/turnstile... https://challenges.cloudflare.com/turnstile/v0/b/0b8fb825cb67/api.js?onload=cFRiY3&render=explicit — 200 — 17.4 KiB — 20 ms — h3https://commerce.gov/favicon.ico/favicon.ico https://commerce.gov/favicon.ico — 403 — 5.2 KiB — 84 ms — h2https://commerce.gov/cdn-cgi/rum?/cdn-cgi/rum? https://commerce.gov/cdn-cgi/rum? — 204 — 147 B — 82 ms — h2https://commerce.gov/favicon.ico/favicon.ico https://commerce.gov/favicon.ico — 403 — 3.4 KiB — 83 ms — h2https://commerce.gov/cdn-cgi/challenge-platform/h/b/flow/ov1/927531819:1776892371:vVewUlFmas0srb30l10YFlK8gjcJmXL29Dq7B946IKw/9f07b96cce4a4225/G1bjwRRiR35yOIsbG8dzmUnJMlWqgh_qEmadpVZvpro-1776893370-1.2.1.1-j7NWqnhIweATL1tB_6l_HRDyHB._88VH4wlO3KM_6Nh.u_bD_rzc_2Ro7P6YzKQT/cdn-cgi/challenge-platform/h/b/flo... https://commerce.gov/cdn-cgi/challenge-platform/h/b/flow/ov1/927531819:1776892371:vVewUlFmas0srb30l10YFlK8gjcJmXL29Dq7B946IKw/9f07b96cce4a4225/G1bjwRRiR35yOIsbG8dzmUnJMlWqgh_qEmadpVZvpro-1776893370-1.2.1.1-j7NWqnhIweATL1tB_6l_HRDyHB._88VH4wlO3KM_6Nh.u_bD_rzc_2Ro7P6YzKQT — 200 — 13.8 KiB — 101 ms — h2blob:https://commerce.gov/ce505145-d6c4-420e-8c60-15f485a1cbc9commerce.gov/ce505145-d6c4-420e-8c6... blob:https://commerce.gov/ce505145-d6c4-420e-8c60-15f485a1cbc9 — 200 — -1 B — 91 ms — blobhttps://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/turnstile/f/ov2/av0/rch/4obvu/0x4AAAAAAADnPIDROrmt1Wwj/light/fbE/new/normal?lang=autochallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/turnstile/f/ov2/av0/rch/4obvu/0x4AAAAAAADnPIDROrmt1Wwj/light/fbE/new/normal?lang=auto — 200 — 93.5 KiB — 22 ms — h3https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/cmg/1challenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/cmg/1 — 200 — 208 B — 7 ms — h3blob:https://challenges.cloudflare.com/ee7c292e-1bef-459d-b6d0-cdeaa7977ce9challenges.cloudflare.com/ee7c292e-... blob:https://challenges.cloudflare.com/ee7c292e-1bef-459d-b6d0-cdeaa7977ce9 — -1 — 0 B — 0 ms — https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/flow/ov1/4100900095:1776892373:L0nL67ly3l9VisnM33R_sKjYxQhSpF0B3njDgeQGRpI/9f07b970ed21aba7/PE8LbQNTzxgu1wG7IUU7MSLVMLn9GfE5wBSWNKonH8A-1776893371-1.2.1.1-blvRNR4PQTjASCodFzgrXEGzF703U5wpWLSnqtB0HpmWASN7nvHR5Kba4yIexuutchallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/flow/ov1/4100900095:1776892373:L0nL67ly3l9VisnM33R_sKjYxQhSpF0B3njDgeQGRpI/9f07b970ed21aba7/PE8LbQNTzxgu1wG7IUU7MSLVMLn9GfE5wBSWNKonH8A-1776893371-1.2.1.1-blvRNR4PQTjASCodFzgrXEGzF703U5wpWLSnqtB0HpmWASN7nvHR5Kba4yIexuut — 200 — 271.4 KiB — 89 ms — h3blob:https://challenges.cloudflare.com/d5e579bd-4770-438a-9229-da527034cb33challenges.cloudflare.com/d5e579bd-... blob:https://challenges.cloudflare.com/d5e579bd-4770-438a-9229-da527034cb33 — 200 — -1 B — 131 ms — blobhttps://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/pat/9f07b970ed21aba7/1776893371407/46593ce3f702a2ee1f8b294d60f848e29832d3287770f29fcd7b5cf144124a7e/JNjUFfBrjqSVRd-challenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/pat/9f07b970ed21aba7/1776893371407/46593ce3f702a2ee1f8b294d60f848e29832d3287770f29fcd7b5cf144124a7e/JNjUFfBrjqSVRd- — 401 — 1.7 KiB — 10 ms — h3blob:https://challenges.cloudflare.com/d5e579bd-4770-438a-9229-da527034cb33challenges.cloudflare.com/d5e579bd-... blob:https://challenges.cloudflare.com/d5e579bd-4770-438a-9229-da527034cb33 — 200 — -1 B — 21 ms — blobhttps://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/d/9f07b970ed21aba7/1776893371407/yJkhew5i7s9ADg1challenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/d/9f07b970ed21aba7/1776893371407/yJkhew5i7s9ADg1 — 200 — 1.1 KiB — 7 ms — h3https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/flow/ov1/4100900095:1776892373:L0nL67ly3l9VisnM33R_sKjYxQhSpF0B3njDgeQGRpI/9f07b970ed21aba7/PE8LbQNTzxgu1wG7IUU7MSLVMLn9GfE5wBSWNKonH8A-1776893371-1.2.1.1-blvRNR4PQTjASCodFzgrXEGzF703U5wpWLSnqtB0HpmWASN7nvHR5Kba4yIexuutchallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/flow/ov1/4100900095:1776892373:L0nL67ly3l9VisnM33R_sKjYxQhSpF0B3njDgeQGRpI/9f07b970ed21aba7/PE8LbQNTzxgu1wG7IUU7MSLVMLn9GfE5wBSWNKonH8A-1776893371-1.2.1.1-blvRNR4PQTjASCodFzgrXEGzF703U5wpWLSnqtB0HpmWASN7nvHR5Kba4yIexuut — 200 — 22.8 KiB — 29 ms — h3blob:https://challenges.cloudflare.com/3bee92e2-968a-4919-adba-fa7c51030ca6challenges.cloudflare.com/3bee92e2-... blob:https://challenges.cloudflare.com/3bee92e2-968a-4919-adba-fa7c51030ca6 — 200 — -1 B — 32 ms — blob
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
5% of JavaScript execution is third-party
First-party Third-party 214ms · 0KB · $3/mo
Unattributable
Other
Costly
Execution 214ms
Transfer 0 KB
Monthly Cost $3/mo

These scripts may cost more than they're worth

  • Unattributable adds 214ms and costs ~$3/month

Unattributable takes 214ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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