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Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
91
GRADE
A
FIX
1
REVIEW
4
PASS
18
INFO
3

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

Mobile Desktop
53
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
96
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
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.

3.85 s

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

5.20 s

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

665 ms

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

0.071

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

4.71 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.

5.98 s

Page Load Progression

377 ms
754 ms
1.1 s
1.5 s
1.9 s
2.3 s
2.6 s
3.0 s
Checks
26
18 PASS 4 REVIEW 1 FIX
F
JS Execution Cost
Action
7126ms total JS execution
FIX
7126ms total JS execution
Warning::
https://clucktheweb.com/: 2970ms CPU time
Warning::
https://clucktheweb.com/assets/index-DR21hIGx.js: 2699ms CPU time
Warning::
Unattributable: 1223ms CPU time
Info::
https://clucktheweb.com/__l5e/events.b21a279f52bb8...: 115ms CPU time
Info::
https://clucktheweb.com/assets/routes-Bw_uXM1a.js: 62ms CPU time

Main Thread Breakdown

Script Evaluation 37% Style & Layout 30% Other 19% Rendering 6% Parse HTML & CSS 4% Garbage Collection 3%
ScriptTotalScriptingParse/CompileParty
https://clucktheweb.com/2970ms21ms16ms1st
https://clucktheweb.com/assets/index-DR21hIGx.js2699ms2537ms10ms1st
Unattributable1223ms14ms0ms1st
https://clucktheweb.com/__l5e/events.b21a279f52bb8621.js115ms33ms4ms1st
https://clucktheweb.com/assets/routes-Bw_uXM1a.js62ms2ms1ms1st
https://clucktheweb.com/~flock.js57ms45ms4ms1st
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.
B
Document Compression
Document response uses gzip; brotli would be ~20% smaller
REVIEW
Document response uses gzip; brotli would be ~20% smaller
Info::
Main HTML response uses gzip (brotli would be ~20% smaller)
All current browsers support brotli. Most CDNs (Cloudflare, Fastly, AWS CloudFront, Vercel, Netlify) can switch from gzip to brotli with a single config flag. Origin servers (nginx, Apache) need a brotli module compiled in -- nginx-brotli or Apache mod_brotli.
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.
B
HTTP Caching
no-cache, must-revalidate, max-age=0
REVIEW
no-cache, must-revalidate, max-age=0
Info::
Cache-Control header is set
Got: no-cache, must-revalidate, max-age=0
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-cache, must-revalidate, max-age=0

DirectiveValueMeaning
no-cache—Cache but always revalidate first
must-revalidate—Must recheck with server after expiry
max-age0Cache for 0 seconds
A
Page Weight Budget
976 KB transferred, 28 requests
PASS
976 KB transferred, 28 requests
Info::
Page weighs 4.8 MB (976 KB transferred)
Warning::
JavaScript is 523 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 523 KB
Info::
28 HTTP requests
Info::
Estimated 0.20 g CO2 per page load
976 KB / 2.4 MB budget
976 KB transferred
28 requests
0.20 g CO2 per page load
JavaScript 522.6 KiB 54%
Images 258.9 KiB 27%
Fonts 132.2 KiB 14%
HTML 35.5 KiB 4%
CSS 20.8 KiB 2%
Other 5.7 KiB 1%
Other 86 B 0%
Other 85 B 0%
0 2.4 MB 4.9 MB
Under budget

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

A+
Third-Party Impact
No third-party resources
PASS
No third-party resources
Info::
No third-party resources detected
No third-party resources detected — all resources are first-party.
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
1 images, 0 KB saveable
PASS
1 images, 0 KB saveable
Info::
All images are well-optimized
1 images 259 KB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+
Font Loading
6 fonts (132 KB)
PASS
6 fonts (132 KB)
Info::
6 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

6

132 KB total

Render-blocking

0

of 6

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s FCP 3.9 s LCP 5.2 shttps://clucktheweb.com/assets/inter-latin-500-normal-Cerq10X2.woff2inter-latin-500-normal-... https://clucktheweb.com/assets/inter-latin-500-normal-Cerq10X2.woff2 — 23.8 KiB — 204 ms — font-display: swaphttps://clucktheweb.com/assets/inter-latin-400-normal-C38fXH4l.woff2inter-latin-400-normal-... https://clucktheweb.com/assets/inter-latin-400-normal-C38fXH4l.woff2 — 23.2 KiB — 159 ms — font-display: swaphttps://clucktheweb.com/assets/inter-latin-600-normal-LgqL8muc.woff2inter-latin-600-normal-... https://clucktheweb.com/assets/inter-latin-600-normal-LgqL8muc.woff2 — 24.0 KiB — 144 ms — font-display: swaphttps://clucktheweb.com/assets/baloo-2-latin-700-normal-CqTg7A15.woff2baloo-2-latin-700-norma... https://clucktheweb.com/assets/baloo-2-latin-700-normal-CqTg7A15.woff2 — 19.1 KiB — 171 ms — font-display: swaphttps://clucktheweb.com/assets/inter-latin-700-normal-Yt3aPRUw.woff2inter-latin-700-normal-... https://clucktheweb.com/assets/inter-latin-700-normal-Yt3aPRUw.woff2 — 24.0 KiB — 138 ms — font-display: swaphttps://clucktheweb.com/assets/baloo-2-latin-800-normal-BbF3Etk1.woff2baloo-2-latin-800-norma... https://clucktheweb.com/assets/baloo-2-latin-800-normal-BbF3Etk1.woff2 — 18.3 KiB — 144 ms — font-display: swap
inter-latin-500-normal-... woff2 swap
Size 24 KB
Load time 204 ms
Start 2.0 s
Risk FOUT — text flashes from fallback to web font
inter-latin-400-normal-... woff2 swap
Size 23 KB
Load time 159 ms
Start 2.0 s
Risk FOUT — text flashes from fallback to web font
inter-latin-600-normal-... woff2 swap
Size 24 KB
Load time 144 ms
Start 2.0 s
Risk FOUT — text flashes from fallback to web font
baloo-2-latin-700-norma... woff2 swap
Size 19 KB
Load time 171 ms
Start 2.0 s
Risk FOUT — text flashes from fallback to web font
inter-latin-700-normal-... woff2 swap
Size 24 KB
Load time 138 ms
Start 2.0 s
Risk FOUT — text flashes from fallback to web font
baloo-2-latin-800-norma... woff2 swap
Size 18 KB
Load time 144 ms
Start 2.0 s
Risk FOUT — text flashes from fallback to web font
Optimization checklist
  • Preload critical fonts (priority=high)
  • Use woff2 format for all fonts
  • Set font-display to swap, optional, or fallback
  • Subset large fonts (≤100 KB each)
A+
JS Bundles
16 scripts, 26 KB unused
PASS
16 scripts, 26 KB unused
Warning::
https://clucktheweb.com/assets/index-DR21hIGx.js: 26 KB unused (6%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 26 KB
26 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://clucktheweb.com/assets/index-DR21hIGx.js423 KB26 KB (6%)✓1st
https://clucktheweb.com/assets/jsx-runtime-BkSabwWG.js1 KB—✓1st
https://clucktheweb.com/assets/link-BmhWk799.js7 KB—✓1st
https://clucktheweb.com/assets/not-found-i5RsCZif.js0 KB—✓1st
https://clucktheweb.com/assets/underground-jdOqcWR_.js26 KB—✓1st
https://clucktheweb.com/assets/routes-Bw_uXM1a.js19 KB—✓1st
https://clucktheweb.com/assets/createLucideIcon-DYcpJ51u.js1 KB—✓1st
https://clucktheweb.com/assets/ProfileView-_RJ4srLL.js4 KB—✓1st
https://clucktheweb.com/assets/external-link-CHMhO-DW.js0 KB—✓1st
https://clucktheweb.com/assets/landmark-CUOdxtIs.js0 KB—✓1st

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

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+
Main HTML Cache-Control
Main HTML uses no-cache -- safe revalidate-on-request policy
PASS
Main HTML uses no-cache -- safe revalidate-on-request policy
Info::
Main HTML uses no-cache -- safe revalidate-on-request policy
Got: no-cache, must-revalidate, max-age=0
A
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Warning::
Compressed response missing `Vary` header
The page is served with `Content-Encoding: gzip` but has no `Vary` header. Without `Vary: Accept-Encoding`, intermediary caches (corporate proxies, ISP caches) may serve the compressed variant to clients that didn't send the matching `Accept-Encoding` -- the client sees garbled bytes. Add `Vary: Accept-Encoding` whenever the response is conditionally compressed.
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
28 resources · 976 KB · 26 KB savings available
PASS
28 resources · 976 KB · 26 KB savings available
Info::
Within 1MB page-weight target
Got: 976 KB
Info::
2 resources over 200KB
28 resources · 975.8 KiB · 0 third-party Within 1MB page-weight target
JavaScript 54% · 522.6 KiB
Image 27% · 264.6 KiB
Font 14% · 132.2 KiB
Document 4% · 35.5 KiB
CSS 2% · 20.8 KiB
Other 0% · 171 B

~25.6 KiB of savings available

Remove unused JavaScript: 25.6 KiB
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A
JavaScript Blocking
1 JS blocking issue(s) detected
PASS
1 JS blocking issue(s) detected
Warning::
Total JS execution time is 7.1 s -- over the 3.5s budget
Total JavaScript execution (parse + compile + run) across all scripts exceeds 3.5 seconds. On low-end devices that becomes 7-15+ seconds and shows up directly in TBT and INP. Reduce by: tree-shaking unused dependencies, code-splitting (dynamic `import()`), removing or deferring third-party tracking, and replacing heavy frameworks where they're not needed.
A+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
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

Asset Compression
No text asset hosts to measure
INFO
No text asset hosts to measure
Info::
No third-party or subdomain host served enough text assets to measure
Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.
Network Waterfall
28 requests over 2722ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s FCP 3.9 s LCP 5.2 shttps://clucktheweb.com// https://clucktheweb.com/ — 200 — 35.5 KiB — 1.4 s — h2https://clucktheweb.com/brand/logo-800.webp/brand/logo-800.webp https://clucktheweb.com/brand/logo-800.webp — 200 — 258.9 KiB — 447 ms — h2https://clucktheweb.com/assets/styles-MGG1KdWk.css/assets/styles-MGG1KdWk.css https://clucktheweb.com/assets/styles-MGG1KdWk.css — 200 — 20.8 KiB — 307 ms — h2https://clucktheweb.com/assets/index-DR21hIGx.js/assets/index-DR21hIGx.js https://clucktheweb.com/assets/index-DR21hIGx.js — 200 — 423.2 KiB — 602 ms — h2https://clucktheweb.com/assets/jsx-runtime-BkSabwWG.js/assets/jsx-runtime-BkSabwWG.js https://clucktheweb.com/assets/jsx-runtime-BkSabwWG.js — 200 — 610 B — 256 ms — h2https://clucktheweb.com/assets/link-BmhWk799.js/assets/link-BmhWk799.js https://clucktheweb.com/assets/link-BmhWk799.js — 200 — 7.4 KiB — 150 ms — h2https://clucktheweb.com/assets/not-found-i5RsCZif.js/assets/not-found-i5RsCZif.js https://clucktheweb.com/assets/not-found-i5RsCZif.js — 200 — 165 B — 428 ms — h2https://clucktheweb.com/assets/underground-jdOqcWR_.js/assets/underground-jdOqcWR_.js https://clucktheweb.com/assets/underground-jdOqcWR_.js — 200 — 26.1 KiB — 290 ms — h2https://clucktheweb.com/assets/routes-Bw_uXM1a.js/assets/routes-Bw_uXM1a.js https://clucktheweb.com/assets/routes-Bw_uXM1a.js — 200 — 19.0 KiB — 417 ms — h2https://clucktheweb.com/assets/createLucideIcon-DYcpJ51u.js/assets/createLucideIcon-DYcpJ51u.j... https://clucktheweb.com/assets/createLucideIcon-DYcpJ51u.js — 200 — 841 B — 145 ms — h2https://clucktheweb.com/assets/ProfileView-_RJ4srLL.js/assets/ProfileView-_RJ4srLL.js https://clucktheweb.com/assets/ProfileView-_RJ4srLL.js — 200 — 4.2 KiB — 300 ms — h2https://clucktheweb.com/assets/external-link-CHMhO-DW.js/assets/external-link-CHMhO-DW.js https://clucktheweb.com/assets/external-link-CHMhO-DW.js — 200 — 253 B — 306 ms — h2https://clucktheweb.com/assets/landmark-CUOdxtIs.js/assets/landmark-CUOdxtIs.js https://clucktheweb.com/assets/landmark-CUOdxtIs.js — 200 — 315 B — 445 ms — h2https://clucktheweb.com/assets/search-Chv5fHZI.js/assets/search-Chv5fHZI.js https://clucktheweb.com/assets/search-Chv5fHZI.js — 200 — 221 B — 276 ms — h2https://clucktheweb.com/assets/x-Bdjqu3Is.js/assets/x-Bdjqu3Is.js https://clucktheweb.com/assets/x-Bdjqu3Is.js — 200 — 203 B — 307 ms — h2https://clucktheweb.com/assets/dist-D2qJmPlA.js/assets/dist-D2qJmPlA.js https://clucktheweb.com/assets/dist-D2qJmPlA.js — 200 — 11.6 KiB — 350 ms — h2https://clucktheweb.com/~flock.js/~flock.js https://clucktheweb.com/~flock.js — 200 — 8.2 KiB — 55 ms — h2https://clucktheweb.com/__l5e/events.b21a279f52bb8621.js/__l5e/events.b21a279f52bb8621.js https://clucktheweb.com/__l5e/events.b21a279f52bb8621.js — 200 — 10.3 KiB — 56 ms — h2https://clucktheweb.com/assets/inter-latin-500-normal-Cerq10X2.woff2/assets/inter-latin-500-normal-Cerq... https://clucktheweb.com/assets/inter-latin-500-normal-Cerq10X2.woff2 — 200 — 23.8 KiB — 204 ms — h2https://clucktheweb.com/assets/inter-latin-400-normal-C38fXH4l.woff2/assets/inter-latin-400-normal-C38f... https://clucktheweb.com/assets/inter-latin-400-normal-C38fXH4l.woff2 — 200 — 23.2 KiB — 159 ms — h2https://clucktheweb.com/assets/inter-latin-600-normal-LgqL8muc.woff2/assets/inter-latin-600-normal-LgqL... https://clucktheweb.com/assets/inter-latin-600-normal-LgqL8muc.woff2 — 200 — 24.0 KiB — 144 ms — h2https://clucktheweb.com/assets/baloo-2-latin-700-normal-CqTg7A15.woff2/assets/baloo-2-latin-700-normal-Cq... https://clucktheweb.com/assets/baloo-2-latin-700-normal-CqTg7A15.woff2 — 200 — 19.1 KiB — 171 ms — h2https://clucktheweb.com/assets/inter-latin-700-normal-Yt3aPRUw.woff2/assets/inter-latin-700-normal-Yt3a... https://clucktheweb.com/assets/inter-latin-700-normal-Yt3aPRUw.woff2 — 200 — 24.0 KiB — 138 ms — h2https://clucktheweb.com/assets/baloo-2-latin-800-normal-BbF3Etk1.woff2/assets/baloo-2-latin-800-normal-Bb... https://clucktheweb.com/assets/baloo-2-latin-800-normal-BbF3Etk1.woff2 — 200 — 18.3 KiB — 144 ms — h2https://clucktheweb.com/__l5e/trackevents/__l5e/trackevents https://clucktheweb.com/__l5e/trackevents — 202 — 85 B — 96 ms — h2https://clucktheweb.com/assets/OwnerThumbnail-BQsvauy8.js/assets/OwnerThumbnail-BQsvauy8.js https://clucktheweb.com/assets/OwnerThumbnail-BQsvauy8.js — 200 — 10.0 KiB — 265 ms — h2https://clucktheweb.com/~api/analytics/~api/analytics https://clucktheweb.com/~api/analytics — 202 — 86 B — 35 ms — h2https://clucktheweb.com/favicon.png/favicon.png https://clucktheweb.com/favicon.png — 200 — 5.7 KiB — 114 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Image Optimization
2 images, 517 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

2

Total Size

517 KB

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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