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https://blackedraw.com

Performance

· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
90
GRADE
A
FIX
2
REVIEW
3
PASS
14
INFO
3

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

Mobile Desktop
97
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.

591 ms

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

1.19 s

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

36 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.

648 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.

1.19 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
22
14 PASS 3 REVIEW 2 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (599.1 KiB of 599.2 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
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.

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.
B
Server-Timing Observability
No Server-Timing header found
REVIEW
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
A+
Page Weight Budget
599 KB transferred, 22 requests
PASS
599 KB transferred, 22 requests
Info::
Page weighs 1.2 MB (599 KB transferred)
Info::
22 HTTP requests
Info::
Estimated 0.12 g CO2 per page load
599 KB / 2.4 MB budget
599 KB transferred
22 requests
0.12 g CO2 per page load
Other 381.4 KiB 64%
HTML 103.6 KiB 17%
JavaScript 99.6 KiB 17%
Images 7.4 KiB 1%
Other 5.0 KiB 1%
Other 2.2 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
2 images, 0 KB saveable
PASS
2 images, 0 KB saveable
Info::
All images are well-optimized
2 images 7 KB
0 oversized -0 KB
2 legacy format
0 missing dimensions CLS risk
A+
JS Execution Cost
322ms total JS execution
PASS
322ms total JS execution
Warning::
https://www.blackedraw.com/cdn-cgi/challenge-platf...: 322ms CPU time
Warning::
Third-party scripts: 322ms (100% of total)

Main Thread Breakdown

Script Evaluation 79% Other 14%
ScriptTotalScriptingParse/CompileParty
https://www.blackedraw.com/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=a1f183d798c3bb75322ms303ms5ms3rd
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://www.blackedraw.com/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=a1f183d798c3bb7576 KB—✓3rd
blob:https://www.blackedraw.com/ae796030-e339-4263-9aa7-1472fac190530 KB—✓3rd
https://challenges.cloudflare.com/turnstile/v0/b/3104729c556c/api.js?onload=WBul8&render=explicit24 KB—✓3rd
blob:https://www.blackedraw.com/049e728f-a944-4cae-8340-f1bbc55fc93d-0 KB—✓3rd
blob:https://challenges.cloudflare.com/b970ba86-f213-4e7a-9fa6-ea98a1729f160 KB—✓3rd
blob:https://challenges.cloudflare.com/02b986cd-5cb6-49ee-94cd-1e9c7a4e282e-0 KB—✓3rd
blob:https://challenges.cloudflare.com/02b986cd-5cb6-49ee-94cd-1e9c7a4e282e-0 KB—✓3rd
blob:https://challenges.cloudflare.com/02b986cd-5cb6-49ee-94cd-1e9c7a4e282e-0 KB—✓3rd
blob:https://challenges.cloudflare.com/bc009b97-cdf5-4577-9472-0e04169ef4d8-0 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+
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
PASS
HTTP/3 advertised via Alt-Svc
Info::
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
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 Response Intelligence
1 server-response signal(s) detected
PASS
1 server-response signal(s) detected
Info::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
A
Page Weight Inventory
22 resources · 599 KB · 0 KB savings available
PASS
22 resources · 599 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 599 KB
Warning::
20 third-party resources (100% of weight)
Info::
1 resources over 200KB
22 resources · 599.2 KiB · 20 third-party Within 1MB page-weight target
Other 64% · 383.6 KiB
Document 18% · 108.5 KiB
JavaScript 17% · 99.6 KiB
Image 1% · 7.4 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
22 requests over 2496ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 591 ms LCP 1.2 shttps://blackedraw.com// https://blackedraw.com/ — 301 — 172 B — 58 ms — h3https://www.blackedraw.com/www.blackedraw.com/ https://www.blackedraw.com/ — 307 — 64 B — 39 ms — http/1.1https://blackedraw.com// https://blackedraw.com/ — 301 — 0 B — 1 ms — h3https://www.blackedraw.com/www.blackedraw.com/ https://www.blackedraw.com/ — 403 — 4.8 KiB — 41 ms — h3https://www.blackedraw.com/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=a1f183d798c3bb75www.blackedraw.com/cdn-cgi/challeng... https://www.blackedraw.com/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=a1f183d798c3bb75 — 200 — 75.7 KiB — 127 ms — h3blob:https://www.blackedraw.com/ae796030-e339-4263-9aa7-1472fac19053www.blackedraw.com/ae796030-e339-42... blob:https://www.blackedraw.com/ae796030-e339-4263-9aa7-1472fac19053 — -1 — 0 B — 0 ms — https://challenges.cloudflare.com/turnstile/v0/b/3104729c556c/api.js?onload=WBul8&render=explicitchallenges.cloudflare.com/turnstile... https://challenges.cloudflare.com/turnstile/v0/b/3104729c556c/api.js?onload=WBul8&render=explicit — 200 — 23.9 KiB — 91 ms — h3https://www.blackedraw.com/favicon.icowww.blackedraw.com/favicon.ico https://www.blackedraw.com/favicon.ico — 403 — 6.0 KiB — 32 ms — h3https://www.blackedraw.com/favicon.icowww.blackedraw.com/favicon.ico https://www.blackedraw.com/favicon.ico — 403 — 4.8 KiB — 32 ms — h3https://www.blackedraw.com/cdn-cgi/challenge-platform/h/b/fo/2302437506:1784711424:szfa0DdcYL3Qv5t2nFum9LJFCx0dvx5aJBOrf7LRr_4/a1f183d798c3bb75/zSBP_HHke2wj9YILOy1225u.AJ.TWMrR1FOIZQpf.DU-1784713552-1.2.1.1-oSZTNVyJ_OSeufgpXLjUAg5GZ82H_u3n99MQYd3tvY9kYMLgAQkM1.dHcJMoW4KNwww.blackedraw.com/cdn-cgi/challeng... https://www.blackedraw.com/cdn-cgi/challenge-platform/h/b/fo/2302437506:1784711424:szfa0DdcYL3Qv5t2nFum9LJFCx0dvx5aJBOrf7LRr_4/a1f183d798c3bb75/zSBP_HHke2wj9YILOy1225u.AJ.TWMrR1FOIZQpf.DU-1784713552-1.2.1.1-oSZTNVyJ_OSeufgpXLjUAg5GZ82H_u3n99MQYd3tvY9kYMLgAQkM1.dHcJMoW4KN — 200 — 28.5 KiB — 50 ms — h3blob:https://www.blackedraw.com/049e728f-a944-4cae-8340-f1bbc55fc93dwww.blackedraw.com/049e728f-a944-4c... blob:https://www.blackedraw.com/049e728f-a944-4cae-8340-f1bbc55fc93d — 200 — -1 B — 41 ms — blobhttps://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/turnstile/f/av0/rch/68mjp/0x4AAAAAAADnPIDROrmt1Wwj/light/fbE/new/normal?lang=autochallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/turnstile/f/av0/rch/68mjp/0x4AAAAAAADnPIDROrmt1Wwj/light/fbE/new/normal?lang=auto — 200 — 98.8 KiB — 140 ms — h3blob:https://challenges.cloudflare.com/b970ba86-f213-4e7a-9fa6-ea98a1729f16challenges.cloudflare.com/b970ba86-... blob:https://challenges.cloudflare.com/b970ba86-f213-4e7a-9fa6-ea98a1729f16 — -1 — 0 B — 0 ms — https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/fo/2854049465:1784711426:RbyiD5AdSDtnEIO3e3Rv7noZC59vcnGCGCfe9ekB-PU/a1f183dafb956cb2/0pr9V8EIuIokCTAsg6eDxOyp9VE4l7lIy9TW.x7hZFA-1784713553-1.2.1.1-ChXZeFmt.fRgNc.UF6QHozS8imAekw8PuXmsKW0EtCjNK1mSVhmxzBNMewJ7HREhchallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/fo/2854049465:1784711426:RbyiD5AdSDtnEIO3e3Rv7noZC59vcnGCGCfe9ekB-PU/a1f183dafb956cb2/0pr9V8EIuIokCTAsg6eDxOyp9VE4l7lIy9TW.x7hZFA-1784713553-1.2.1.1-ChXZeFmt.fRgNc.UF6QHozS8imAekw8PuXmsKW0EtCjNK1mSVhmxzBNMewJ7HREh — 200 — 317.0 KiB — 203 ms — h3blob:https://challenges.cloudflare.com/02b986cd-5cb6-49ee-94cd-1e9c7a4e282echallenges.cloudflare.com/02b986cd-... blob:https://challenges.cloudflare.com/02b986cd-5cb6-49ee-94cd-1e9c7a4e282e — 200 — -1 B — 79 ms — blobhttps://hagen.challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/i/a1f183dafb956cb2/0pr9V8EIuIokCTAsg6eDxOyp9VE4l7lIy9TW.x7hZFA-1784713553-1.2.1.1-ChXZeFmt.fRgNc.UF6QHozS8imAekw8PuXmsKW0EtCjNK1mSVhmxzBNMewJ7HREhhagen.challenges.cloudflare.com/cdn... https://hagen.challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/i/a1f183dafb956cb2/0pr9V8EIuIokCTAsg6eDxOyp9VE4l7lIy9TW.x7hZFA-1784713553-1.2.1.1-ChXZeFmt.fRgNc.UF6QHozS8imAekw8PuXmsKW0EtCjNK1mSVhmxzBNMewJ7HREh — 204 — 557 B — 90 ms — h2https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/pat/a1f183dafb956cb2/1784713553483/b94afd08bc44cf253afecc32d96c02ca0460d3f2539a5a7cf5b6fa13fe39fcc2/YXj5ZoHvG88QDQzchallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/pat/a1f183dafb956cb2/1784713553483/b94afd08bc44cf253afecc32d96c02ca0460d3f2539a5a7cf5b6fa13fe39fcc2/YXj5ZoHvG88QDQz — 401 — 1.7 KiB — 32 ms — h3blob:https://challenges.cloudflare.com/02b986cd-5cb6-49ee-94cd-1e9c7a4e282echallenges.cloudflare.com/02b986cd-... blob:https://challenges.cloudflare.com/02b986cd-5cb6-49ee-94cd-1e9c7a4e282e — 200 — -1 B — 28 ms — blobblob:https://challenges.cloudflare.com/02b986cd-5cb6-49ee-94cd-1e9c7a4e282echallenges.cloudflare.com/02b986cd-... blob:https://challenges.cloudflare.com/02b986cd-5cb6-49ee-94cd-1e9c7a4e282e — 200 — -1 B — 15 ms — blobhttps://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/ci/a1f183dafb956cb2/1784713553484/9swo_g1ka9_yHh_challenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/ci/a1f183dafb956cb2/1784713553484/9swo_g1ka9_yHh_ — 200 — 1.4 KiB — 29 ms — h3https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/fo/2854049465:1784711426:RbyiD5AdSDtnEIO3e3Rv7noZC59vcnGCGCfe9ekB-PU/a1f183dafb956cb2/0pr9V8EIuIokCTAsg6eDxOyp9VE4l7lIy9TW.x7hZFA-1784713553-1.2.1.1-ChXZeFmt.fRgNc.UF6QHozS8imAekw8PuXmsKW0EtCjNK1mSVhmxzBNMewJ7HREhchallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/fo/2854049465:1784711426:RbyiD5AdSDtnEIO3e3Rv7noZC59vcnGCGCfe9ekB-PU/a1f183dafb956cb2/0pr9V8EIuIokCTAsg6eDxOyp9VE4l7lIy9TW.x7hZFA-1784713553-1.2.1.1-ChXZeFmt.fRgNc.UF6QHozS8imAekw8PuXmsKW0EtCjNK1mSVhmxzBNMewJ7HREh — 200 — 35.9 KiB — 84 ms — h3blob:https://challenges.cloudflare.com/bc009b97-cdf5-4577-9472-0e04169ef4d8challenges.cloudflare.com/bc009b97-... blob:https://challenges.cloudflare.com/bc009b97-cdf5-4577-9472-0e04169ef4d8 — 200 — -1 B — 22 ms — blob
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 322ms · 76KB · $4/mo
www.blackedraw.com
Other
Costly
Execution 322ms
Transfer 76 KB
Monthly Cost $4/mo

These scripts may cost more than they're worth

  • www.blackedraw.com adds 322ms and costs ~$4/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more ▾

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

www.blackedraw.com takes 322ms 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

Image Optimization
1 images, 6 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

1

Total Size

6 KB

1 missing dimensions 1 missing lazy loading
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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