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Performance

· 23 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
89
GRADE
B
FIX
1
REVIEW
7
PASS
12
INFO
3

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

Mobile Desktop
88
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.
92
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.

2.17 s

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

3.11 s

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

210 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.

2.17 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.

5.61 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
23
12 PASS 7 REVIEW 1 FIX
D
JS Execution Cost
Action
3052ms total JS execution
FIX
3052ms total JS execution
Warning::
https://nextjs.org/_next/static/immutable/chunks/0...: 1007ms CPU time
Warning::
https://nextjs.org/: 816ms CPU time
Warning::
https://nextjs.org/_next/static/immutable/chunks/2...: 525ms CPU time
Warning::
Unattributable: 289ms CPU time
Info::
https://nextjs.org/_next/static/immutable/chunks/1...: 226ms CPU time
Info::
Third-party scripts: 289ms (9% of total)

Main Thread Breakdown

Script Evaluation 42% Other 28% Style & Layout 15% Rendering 6% Script Parsing & Compilation 6%
ScriptTotalScriptingParse/CompileParty
https://nextjs.org/_next/static/immutable/chunks/0a1x1u7w7w_b6.js1007ms834ms17ms1st
https://nextjs.org/816ms27ms17ms1st
https://nextjs.org/_next/static/immutable/chunks/23n3nv5rywuse.js525ms114ms3ms1st
Unattributable289ms8ms0ms3rd
https://nextjs.org/_next/static/immutable/chunks/18l-m0dw_cn8-.js226ms190ms13ms1st
https://nextjs.org/_stream/external/vercel.fides-cdn.ethyca.com/fides.js?geolocation=EEA126ms110ms14ms1st
https://nextjs.org/_next/static/immutable/chunks/14k92bxdc7_ks.js63ms32ms12ms1st
B
Image Optimization
10 images, 0 KB saveable
REVIEW
10 images, 0 KB saveable
Info::
All images are well-optimized
10 images 39 KB
0 oversized -0 KB
8 legacy format
0 missing dimensions CLS risk
B
JS Bundles
33 scripts, 86 KB unused
REVIEW
33 scripts, 86 KB unused
Warning::
https://nextjs.org/_next/static/immutable/chunks/3...: 35 KB unused (99%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://nextjs.org/_next/static/immutable/chunks/1...: 28 KB unused (57%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://nextjs.org/_next/static/immutable/chunks/0...: 23 KB unused (32%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 86 KB
86 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://nextjs.org/_next/static/immutable/chunks/3u6nxjif50jic.js36 KB35 KB (99%)✓1st
https://nextjs.org/_next/static/immutable/chunks/18l-m0dw_cn8-.js48 KB28 KB (57%)✓1st
https://nextjs.org/_next/static/immutable/chunks/0a1x1u7w7w_b6.js71 KB23 KB (32%)✓1st
https://nextjs.org/_next/static/immutable/chunks/2f9ws3k8s-iup.js16 KB—✓1st
https://nextjs.org/_next/static/immutable/chunks/2ov2zyeo7s_eu.js1 KB—✓1st
https://nextjs.org/_next/static/immutable/chunks/2gm4ueh9ymxi2.js2 KB—✓1st
https://nextjs.org/_next/static/immutable/chunks/0l6hffixgjbf5.js9 KB—✓1st
https://nextjs.org/_next/static/immutable/chunks/1ymujukeeebhf.js9 KB—✓1st
https://nextjs.org/_next/static/immutable/chunks/2f8hbnkha9h8w.js12 KB—✓1st
https://nextjs.org/_next/static/immutable/chunks/2ql-xhk5ftchx.js14 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

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

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

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
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.
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

B
HTTP Caching
public, max-age=0, must-revalidate
REVIEW
public, max-age=0, must-revalidate
Info::
Cache-Control header is set
Got: public, max-age=0, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

public, max-age=0, must-revalidate

DirectiveValueMeaning
public—Any cache may store this response
max-age0Cache for 0 seconds
must-revalidate—Must recheck with server after expiry
A
Page Weight Budget
894 KB transferred, 68 requests
PASS
894 KB transferred, 68 requests
Info::
Page weighs 3.1 MB (894 KB transferred)
Warning::
JavaScript is 568 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 568 KB
Info::
68 HTTP requests
Info::
Estimated 0.18 g CO2 per page load
894 KB / 2.4 MB budget
894 KB transferred
68 requests
0.18 g CO2 per page load
JavaScript 568.4 KiB 64%
Other 97.5 KiB 11%
CSS 82.9 KiB 9%
Fonts 60.4 KiB 7%
Images 39.3 KiB 4%
HTML 36.9 KiB 4%
Other 6.5 KiB 1%
Other 1.8 KiB 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+
Font Loading
3 fonts (60 KB)
PASS
3 fonts (60 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

60 KB total

Render-blocking

0

of 3

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 FCP 2.2 s LCP 3.1 shttps://nextjs.org/_next/static/immutable/media/797e433ab948586e.p.3f30ggp2vw8zj.woff2797e433ab948586e.p.3f30... https://nextjs.org/_next/static/immutable/media/797e433ab948586e.p.3f30ggp2vw8zj.woff2 — 32.3 KiB — 32 ms — font-display: swaphttps://nextjs.org/_next/static/immutable/media/caa3a2e1cccd8315.p.400zotvijr2rn.woff2caa3a2e1cccd8315.p.400z... https://nextjs.org/_next/static/immutable/media/caa3a2e1cccd8315.p.400zotvijr2rn.woff2 — 28.1 KiB — 61 ms — font-display: swaphttps://k2mkucxia43oc7fa.public.blob.vercel-storage.com/front/fonts/space-mono/space-mono-v11-latin-regular.woff2space-mono-v11-latin-re... https://k2mkucxia43oc7fa.public.blob.vercel-storage.com/front/fonts/space-mono/space-mono-v11-latin-regular.woff2 — 0 B — 0 ms — font-display: swap
797e433ab948586e.p.3f30... woff2 swap
Size 32 KB
Load time 32 ms
Start 97 ms
Risk FOUT — text flashes from fallback to web font
caa3a2e1cccd8315.p.400z... woff2 swap
Size 28 KB
Load time 61 ms
Start 97 ms
Risk FOUT — text flashes from fallback to web font
space-mono-v11-latin-re... woff2 swap
Size 0 KB
Load time 0 ms
Start 174 ms
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+
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
3 hints, 0 missing preconnects
PASS
3 hints, 0 missing preconnects
Info::
Page uses 3 resource hint(s)

Current Resource Hints

preconnect
—
preload
3
dns-prefetch
—
prefetch
—

3 resource hints configured

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 max-age=0 (≤ 5min) is appropriate
PASS
Main HTML max-age=0 (≤ 5min) is appropriate
Info::
Main HTML max-age=0 (≤ 5min) is appropriate
Got: public, max-age=0, must-revalidate
A+
Page Weight Inventory
68 resources · 894 KB · 86 KB savings available
PASS
68 resources · 894 KB · 86 KB savings available
Info::
Within 1MB page-weight target
Got: 894 KB
Info::
~86 KB of savings available
Info::
1 third-party resources (0% of weight)
68 resources · 893.6 KiB · 1 third-party Within 1MB page-weight target
JavaScript 64% · 568.4 KiB
Other 11% · 101.3 KiB
CSS 9% · 82.9 KiB
Font 7% · 60.4 KiB
Image 5% · 43.8 KiB
Document 4% · 36.9 KiB

~85.8 KiB of savings available

Remove unused JavaScript: 85.8 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
Network Waterfall
68 requests over 930ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 2.2 s LCP 3.1 shttps://nextjs.org// https://nextjs.org/ — 200 — 36.9 KiB — 89 ms — h2https://nextjs.org/_next/static/immutable/media/797e433ab948586e.p.3f30ggp2vw8zj.woff2/_next/static/immutable/media/797e4... https://nextjs.org/_next/static/immutable/media/797e433ab948586e.p.3f30ggp2vw8zj.woff2 — 200 — 32.3 KiB — 32 ms — h2https://nextjs.org/_next/static/immutable/media/caa3a2e1cccd8315.p.400zotvijr2rn.woff2/_next/static/immutable/media/caa3a... https://nextjs.org/_next/static/immutable/media/caa3a2e1cccd8315.p.400zotvijr2rn.woff2 — 200 — 28.1 KiB — 61 ms — h2https://nextjs.org/_next/static/immutable/chunks/1-vhr6_0s4o77.css/_next/static/immutable/chunks/1-vh... https://nextjs.org/_next/static/immutable/chunks/1-vhr6_0s4o77.css — 200 — 2.9 KiB — 39 ms — h2https://nextjs.org/_next/static/immutable/chunks/3-sarejflg6w8.css/_next/static/immutable/chunks/3-sa... https://nextjs.org/_next/static/immutable/chunks/3-sarejflg6w8.css — 200 — 20.0 KiB — 39 ms — h2https://nextjs.org/_next/static/immutable/chunks/18bbf4kadgtmt.css/_next/static/immutable/chunks/18bb... https://nextjs.org/_next/static/immutable/chunks/18bbf4kadgtmt.css — 200 — 59.4 KiB — 40 ms — h2https://nextjs.org/_next/static/immutable/chunks/1ulxm8je42reo.css/_next/static/immutable/chunks/1ulx... https://nextjs.org/_next/static/immutable/chunks/1ulxm8je42reo.css — 200 — 548 B — 32 ms — h2https://nextjs.org/_next/static/immutable/media/logo-github-light.0j2vz9_zw2uex.svg/_next/static/immutable/media/logo-... https://nextjs.org/_next/static/immutable/media/logo-github-light.0j2vz9_zw2uex.svg — 200 — 2.5 KiB — 35 ms — h2https://nextjs.org/_next/static/immutable/media/logo-github-dark.3cps0n_-l5sia.svg/_next/static/immutable/media/logo-... https://nextjs.org/_next/static/immutable/media/logo-github-dark.3cps0n_-l5sia.svg — 200 — 1023 B — 45 ms — h2https://nextjs.org/_next/static/immutable/media/logo-twitter-x-light.3lfl0ys_vh_gz.svg/_next/static/immutable/media/logo-... https://nextjs.org/_next/static/immutable/media/logo-twitter-x-light.3lfl0ys_vh_gz.svg — 200 — 835 B — 39 ms — h2https://nextjs.org/_next/static/immutable/media/logo-twitter-x-dark.2ms8a02663zmn.svg/_next/static/immutable/media/logo-... https://nextjs.org/_next/static/immutable/media/logo-twitter-x-dark.2ms8a02663zmn.svg — 200 — 2.1 KiB — 42 ms — h2https://nextjs.org/_next/static/immutable/media/logo-bluesky-light.0oj6yf53-gzbh.svg/_next/static/immutable/media/logo-... https://nextjs.org/_next/static/immutable/media/logo-bluesky-light.0oj6yf53-gzbh.svg — 200 — 743 B — 55 ms — h2https://nextjs.org/_next/static/immutable/media/logo-bluesky-dark.1vnxp7olsp0zg.svg/_next/static/immutable/media/logo-... https://nextjs.org/_next/static/immutable/media/logo-bluesky-dark.1vnxp7olsp0zg.svg — 200 — 698 B — 36 ms — h2https://nextjs.org/_next/static/immutable/chunks/1ea-cq_4-qut5.js/_next/static/immutable/chunks/1ea-... https://nextjs.org/_next/static/immutable/chunks/1ea-cq_4-qut5.js — 200 — 9.9 KiB — 62 ms — h2https://nextjs.org/_next/static/immutable/chunks/1j1qk2rvimvph.js/_next/static/immutable/chunks/1j1q... https://nextjs.org/_next/static/immutable/chunks/1j1qk2rvimvph.js — 200 — 10.2 KiB — 83 ms — h2https://nextjs.org/_next/static/immutable/chunks/18l-m0dw_cn8-.js/_next/static/immutable/chunks/18l-... https://nextjs.org/_next/static/immutable/chunks/18l-m0dw_cn8-.js — 200 — 48.1 KiB — 130 ms — h2https://nextjs.org/_next/static/immutable/chunks/0a1x1u7w7w_b6.js/_next/static/immutable/chunks/0a1x... https://nextjs.org/_next/static/immutable/chunks/0a1x1u7w7w_b6.js — 200 — 71.2 KiB — 119 ms — h2https://nextjs.org/_next/static/immutable/chunks/turbopack-3xnne7yv25ns-.js/_next/static/immutable/chunks/turb... https://nextjs.org/_next/static/immutable/chunks/turbopack-3xnne7yv25ns-.js — 200 — 4.9 KiB — 46 ms — h2https://nextjs.org/_next/static/immutable/chunks/2gm4ueh9ymxi2.js/_next/static/immutable/chunks/2gm4... https://nextjs.org/_next/static/immutable/chunks/2gm4ueh9ymxi2.js — 200 — 2.3 KiB — 50 ms — h2https://nextjs.org/_next/static/immutable/chunks/0l6hffixgjbf5.js/_next/static/immutable/chunks/0l6h... https://nextjs.org/_next/static/immutable/chunks/0l6hffixgjbf5.js — 200 — 8.9 KiB — 66 ms — h2https://nextjs.org/_next/static/immutable/chunks/1ymujukeeebhf.js/_next/static/immutable/chunks/1ymu... https://nextjs.org/_next/static/immutable/chunks/1ymujukeeebhf.js — 200 — 9.0 KiB — 64 ms — h2https://nextjs.org/_next/static/immutable/chunks/2f8hbnkha9h8w.js/_next/static/immutable/chunks/2f8h... https://nextjs.org/_next/static/immutable/chunks/2f8hbnkha9h8w.js — 200 — 11.7 KiB — 63 ms — h2https://nextjs.org/_next/static/immutable/chunks/2ql-xhk5ftchx.js/_next/static/immutable/chunks/2ql-... https://nextjs.org/_next/static/immutable/chunks/2ql-xhk5ftchx.js — 200 — 14.0 KiB — 81 ms — h2https://nextjs.org/_next/static/immutable/chunks/2bmqgnjb4h_-1.js/_next/static/immutable/chunks/2bmq... https://nextjs.org/_next/static/immutable/chunks/2bmqgnjb4h_-1.js — 200 — 14.0 KiB — 75 ms — h2https://nextjs.org/_next/static/immutable/chunks/04ynwy-7_yy7s.js/_next/static/immutable/chunks/04yn... https://nextjs.org/_next/static/immutable/chunks/04ynwy-7_yy7s.js — 200 — 13.3 KiB — 72 ms — h2https://nextjs.org/_next/static/immutable/chunks/156kn9626uddc.js/_next/static/immutable/chunks/156k... https://nextjs.org/_next/static/immutable/chunks/156kn9626uddc.js — 200 — 14.5 KiB — 88 ms — h2https://nextjs.org/_next/static/immutable/chunks/31t2ncrigfcxh.js/_next/static/immutable/chunks/31t2... https://nextjs.org/_next/static/immutable/chunks/31t2ncrigfcxh.js — 200 — 9.6 KiB — 109 ms — h2https://nextjs.org/_next/static/immutable/chunks/3zcnn8k5462em.js/_next/static/immutable/chunks/3zcn... https://nextjs.org/_next/static/immutable/chunks/3zcnn8k5462em.js — 200 — 17.3 KiB — 88 ms — h2https://nextjs.org/_next/static/immutable/chunks/14k92bxdc7_ks.js/_next/static/immutable/chunks/14k9... https://nextjs.org/_next/static/immutable/chunks/14k92bxdc7_ks.js — 200 — 54.1 KiB — 123 ms — h2https://nextjs.org/_next/static/immutable/chunks/2f9ws3k8s-iup.js/_next/static/immutable/chunks/2f9w... https://nextjs.org/_next/static/immutable/chunks/2f9ws3k8s-iup.js — 200 — 16.2 KiB — 97 ms — h2
0 ms 1.0 s 2.0 s 3.0 s FCP 2.2 s LCP 3.1 shttps://nextjs.org// https://nextjs.org/ — 200 — 36.9 KiB — 89 ms — h2https://nextjs.org/_next/static/immutable/media/797e433ab948586e.p.3f30ggp2vw8zj.woff2/_next/static/immutable/media/797e4... https://nextjs.org/_next/static/immutable/media/797e433ab948586e.p.3f30ggp2vw8zj.woff2 — 200 — 32.3 KiB — 32 ms — h2https://nextjs.org/_next/static/immutable/media/caa3a2e1cccd8315.p.400zotvijr2rn.woff2/_next/static/immutable/media/caa3a... https://nextjs.org/_next/static/immutable/media/caa3a2e1cccd8315.p.400zotvijr2rn.woff2 — 200 — 28.1 KiB — 61 ms — h2https://nextjs.org/_next/static/immutable/chunks/1-vhr6_0s4o77.css/_next/static/immutable/chunks/1-vh... https://nextjs.org/_next/static/immutable/chunks/1-vhr6_0s4o77.css — 200 — 2.9 KiB — 39 ms — h2https://nextjs.org/_next/static/immutable/chunks/3-sarejflg6w8.css/_next/static/immutable/chunks/3-sa... https://nextjs.org/_next/static/immutable/chunks/3-sarejflg6w8.css — 200 — 20.0 KiB — 39 ms — 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h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
9% of JavaScript execution is third-party
First-party Third-party 289ms · 0KB · €3/mo
Unattributable
Other
Costly
Execution 289ms
Transfer 0 KB
Monthly Cost €3/mo

These scripts may cost more than they're worth

  • Unattributable adds 289ms and costs ~€3/month

Unattributable takes 289ms 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

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 (2026-04-09 — 2026-05-06)

LCP (p75)

1143 ms

93% good

INP (p75)

70 ms

94% good

CLS (p75)

0.000

99% good

FCP (p75)

1132 ms

TTFB (p75)

477 ms

This origin passes Core Web Vitals assessment
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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