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Performance

· 21 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
88
GRADE
B
FIX
2
REVIEW
4
PASS
12
INFO
3

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

Mobile Desktop
99
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
91
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.
50
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.

276 ms

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

772 ms

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

83 ms

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

0.000

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

404 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.

949 ms

Page Load Progression

671 ms
1.3 s
2.0 s
2.7 s
3.4 s
4.0 s
4.7 s
5.4 s
Checks
21
12 PASS 4 REVIEW 2 FIX
D
Third-Party Impact
Action
85% third-party, 0 ms blocking
FIX
85% third-party, 0 ms blocking
Warning::
Third-party code accounts for 85% of page weight (492.5 KiB of 578.5 KiB)
Info::
Third-party blocking time is low (0 ms)
85%
First-party Third-party
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.

B
JS Execution Cost
623ms total JS execution
REVIEW
623ms total JS execution
Warning::
https://gitlab.com/cdn-cgi/challenge-platform/h/g/...: 623ms CPU time

Main Thread Breakdown

Script Evaluation 90% Other 7%
ScriptTotalScriptingParse/CompileParty
https://gitlab.com/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9f8fb7d0ffca6e28623ms611ms6ms1st
B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
C
Compression Algorithm
Action
Main response served uncompressed
REVIEW
Main response served uncompressed
Info::
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
B
Main HTML Cache-Control
No Cache-Control header on main HTML response
REVIEW
No Cache-Control header on main HTML response
Info::
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
A+
Page Weight Budget
579 KB transferred, 21 requests
PASS
579 KB transferred, 21 requests
Info::
Page weighs 999 KB (579 KB transferred)
Info::
21 HTTP requests
Info::
Estimated 0.12 g CO2 per page load
579 KB / 2.4 MB budget
579 KB transferred
21 requests
0.12 g CO2 per page load
Other 395.8 KiB 68%
HTML 89.3 KiB 15%
JavaScript 81.5 KiB 14%
Images 6.8 KiB 1%
Other 3.4 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
8 scripts, 0 KB unused
PASS
8 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://gitlab.com/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9f8fb7d0ffca6e2862 KB—✓1st
blob:https://gitlab.com/daf1a0db-c298-4ce2-b151-cf0c324343660 KB—✓3rd
https://challenges.cloudflare.com/turnstile/v0/g/fe6331af5207/api.js?onload=kwkA1&render=explicit20 KB—✓3rd
blob:https://gitlab.com/d8bfc68b-43e0-4f55-844f-1d8ad6563b84-0 KB—✓3rd
blob:https://challenges.cloudflare.com/5051e4d7-48dd-4fb0-bb25-bb1411d1b4ba0 KB—✓3rd
blob:https://challenges.cloudflare.com/68c42c51-2c90-4907-9fc3-4b372805c596-0 KB—✓3rd
blob:https://challenges.cloudflare.com/68c42c51-2c90-4907-9fc3-4b372805c596-0 KB—✓3rd
blob:https://challenges.cloudflare.com/92c55011-85e7-4807-ae62-32e2be109ae2-0 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+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Server-Timing Observability
1 Server-Timing entries advertised
PASS
1 Server-Timing entries advertised
Info::
Server-Timing header advertises 1 timing entries
A
Page Weight Inventory
21 resources · 579 KB · 0 KB savings available
PASS
21 resources · 579 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 579 KB
Warning::
13 third-party resources (85% of weight)
Info::
1 resources over 200KB
21 resources · 578.5 KiB · 13 third-party Within 1MB page-weight target
Other 69% · 397.5 KiB
Document 16% · 92.7 KiB
JavaScript 14% · 81.5 KiB
Image 1% · 6.8 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 4947ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s FCP 276 ms LCP 772 mshttps://gitlab.com/users/sign_in/users/sign_in https://gitlab.com/users/sign_in — 307 — 73 B — 17 ms — http/1.1https://gitlab.com/users/sign_in/users/sign_in https://gitlab.com/users/sign_in — 403 — 4.0 KiB — 7 ms — h2https://gitlab.com/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9f8fb7d0ffca6e28/cdn-cgi/challenge-platform/h/g/orc... https://gitlab.com/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9f8fb7d0ffca6e28 — 200 — 61.5 KiB — 13 ms — h2blob:https://gitlab.com/daf1a0db-c298-4ce2-b151-cf0c32434366gitlab.com/daf1a0db-c298-4ce2-b151-... blob:https://gitlab.com/daf1a0db-c298-4ce2-b151-cf0c32434366 — -1 — 0 B — 0 ms — https://challenges.cloudflare.com/turnstile/v0/g/fe6331af5207/api.js?onload=kwkA1&render=explicitchallenges.cloudflare.com/turnstile... https://challenges.cloudflare.com/turnstile/v0/g/fe6331af5207/api.js?onload=kwkA1&render=explicit — 200 — 20.0 KiB — 18 ms — h3https://gitlab.com/favicon.ico/favicon.ico https://gitlab.com/favicon.ico — 301 — 1.8 KiB — 77 ms — h2https://gitlab.com/assets/favicon-72a2cad5025aa931d6ea56c3201d1f18e68a8cd39788c7c80d5b2b82aa5143ef.png/assets/favicon-72a2cad5025aa931d6e... https://gitlab.com/assets/favicon-72a2cad5025aa931d6ea56c3201d1f18e68a8cd39788c7c80d5b2b82aa5143ef.png — 200 — 1.3 KiB — 19 ms — h2https://gitlab.com/cdn-cgi/challenge-platform/h/g/flow/ov1/1018565600:1778318523:zpbmyHblv9uT1sqcsaiQfmp8YeHdHl5_PXHuA_TuLGQ/9f8fb7d0ffca6e28/xZMHWPbUOU1iAkzmP1C6c0sidOe8_4mCxDrzXhhYkfg-1778319367-1.2.1.1-Hu.MPHAkggBCPN7qpTciRSyQuOfV5CMv1fWr0gN0O1W.RHgYqxdX1uSwWbWvEhTM/cdn-cgi/challenge-platform/h/g/flo... https://gitlab.com/cdn-cgi/challenge-platform/h/g/flow/ov1/1018565600:1778318523:zpbmyHblv9uT1sqcsaiQfmp8YeHdHl5_PXHuA_TuLGQ/9f8fb7d0ffca6e28/xZMHWPbUOU1iAkzmP1C6c0sidOe8_4mCxDrzXhhYkfg-1778319367-1.2.1.1-Hu.MPHAkggBCPN7qpTciRSyQuOfV5CMv1fWr0gN0O1W.RHgYqxdX1uSwWbWvEhTM — 200 — 15.7 KiB — 18 ms — h2https://gitlab.com/favicon.ico/favicon.ico https://gitlab.com/favicon.ico — 301 — 1.6 KiB — 70 ms — h2blob:https://gitlab.com/d8bfc68b-43e0-4f55-844f-1d8ad6563b84gitlab.com/d8bfc68b-43e0-4f55-844f-... blob:https://gitlab.com/d8bfc68b-43e0-4f55-844f-1d8ad6563b84 — 200 — -1 B — 39 ms — blobhttps://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/turnstile/f/ov2/av0/rch/nntmb/0x4AAAAAAADnPIDROrmt1Wwj/light/fbE/new/normal?lang=autochallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/turnstile/f/ov2/av0/rch/nntmb/0x4AAAAAAADnPIDROrmt1Wwj/light/fbE/new/normal?lang=auto — 200 — 85.3 KiB — 26 ms — h3https://gitlab.com/assets/favicon-72a2cad5025aa931d6ea56c3201d1f18e68a8cd39788c7c80d5b2b82aa5143ef.png/assets/favicon-72a2cad5025aa931d6e... https://gitlab.com/assets/favicon-72a2cad5025aa931d6ea56c3201d1f18e68a8cd39788c7c80d5b2b82aa5143ef.png — 200 — 0 B — 5 ms — h2https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/cmg/1challenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/cmg/1 — 200 — 209 B — 7 ms — h3blob:https://challenges.cloudflare.com/5051e4d7-48dd-4fb0-bb25-bb1411d1b4bachallenges.cloudflare.com/5051e4d7-... blob:https://challenges.cloudflare.com/5051e4d7-48dd-4fb0-bb25-bb1411d1b4ba — -1 — 0 B — 0 ms — https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/flow/ov1/1422299800:1778318524:zwZoUiFtTJwV90CYRenzUlgNaNdFcIMuDkiizXsi69c/9f8fb7d30c9193b6/nt8aKCkQPIA6baqnVDGR8duTYQLfypvjSYc.IHXVCD0-1778319368-1.2.1.1-iJuIq58nH_fqF0HWm28HPSweR_IpwMtkbZgz0P7f9dtY.u4zTcS1IaL4DIZBfTS6challenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/flow/ov1/1422299800:1778318524:zwZoUiFtTJwV90CYRenzUlgNaNdFcIMuDkiizXsi69c/9f8fb7d30c9193b6/nt8aKCkQPIA6baqnVDGR8duTYQLfypvjSYc.IHXVCD0-1778319368-1.2.1.1-iJuIq58nH_fqF0HWm28HPSweR_IpwMtkbZgz0P7f9dtY.u4zTcS1IaL4DIZBfTS6 — 200 — 355.2 KiB — 105 ms — h3blob:https://challenges.cloudflare.com/68c42c51-2c90-4907-9fc3-4b372805c596challenges.cloudflare.com/68c42c51-... blob:https://challenges.cloudflare.com/68c42c51-2c90-4907-9fc3-4b372805c596 — 200 — -1 B — 121 ms — blobhttps://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/d/9f8fb7d30c9193b6/1778319368506/6KrXJgH0On6a1ggchallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/d/9f8fb7d30c9193b6/1778319368506/6KrXJgH0On6a1gg — 200 — 5.3 KiB — 6 ms — h3https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/pat/9f8fb7d30c9193b6/1778319368506/3f6ead488f5be089b593d49f8e2602157ee482dcade3c02cb6a8ca911dfc3c4d/bEdQz_QomGJPoTDchallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/pat/9f8fb7d30c9193b6/1778319368506/3f6ead488f5be089b593d49f8e2602157ee482dcade3c02cb6a8ca911dfc3c4d/bEdQz_QomGJPoTD — 401 — 1.7 KiB — 7 ms — h3blob:https://challenges.cloudflare.com/68c42c51-2c90-4907-9fc3-4b372805c596challenges.cloudflare.com/68c42c51-... blob:https://challenges.cloudflare.com/68c42c51-2c90-4907-9fc3-4b372805c596 — 200 — -1 B — 29 ms — blobhttps://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/flow/ov1/1422299800:1778318524:zwZoUiFtTJwV90CYRenzUlgNaNdFcIMuDkiizXsi69c/9f8fb7d30c9193b6/nt8aKCkQPIA6baqnVDGR8duTYQLfypvjSYc.IHXVCD0-1778319368-1.2.1.1-iJuIq58nH_fqF0HWm28HPSweR_IpwMtkbZgz0P7f9dtY.u4zTcS1IaL4DIZBfTS6challenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/flow/ov1/1422299800:1778318524:zwZoUiFtTJwV90CYRenzUlgNaNdFcIMuDkiizXsi69c/9f8fb7d30c9193b6/nt8aKCkQPIA6baqnVDGR8duTYQLfypvjSYc.IHXVCD0-1778319368-1.2.1.1-iJuIq58nH_fqF0HWm28HPSweR_IpwMtkbZgz0P7f9dtY.u4zTcS1IaL4DIZBfTS6 — 200 — 24.9 KiB — 31 ms — h3blob:https://challenges.cloudflare.com/92c55011-85e7-4807-ae62-32e2be109ae2challenges.cloudflare.com/92c55011-... blob:https://challenges.cloudflare.com/92c55011-85e7-4807-ae62-32e2be109ae2 — 200 — -1 B — 32 ms — blob
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
INFO

Chrome User Experience (CrUX)

Real-user metrics from the Chrome UX Report (2026-04-10 — 2026-05-07)

LCP (p75)

2092 ms

86% good

INP (p75)

54 ms

97% good

CLS (p75)

0.060

87% good

FCP (p75)

1984 ms

TTFB (p75)

1720 ms

This origin passes Core Web Vitals assessment
Image Optimization
1 images, 1 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

1

Total Size

1 KB

1 missing dimensions
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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