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https://skippa.cc

Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
92
GRADE
A
FIX
1
REVIEW
7
PASS
15
INFO
3

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

Mobile Desktop
85
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
80
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.

2.97 s

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

3.50 s

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

0 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.

3.49 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.

3.50 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
26
15 PASS 7 REVIEW 1 FIX
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.
Info::
ETag present — enables conditional (304) responses

No Cache-Control header

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

B
Third-Party Impact
57% third-party, 0 ms blocking
REVIEW
57% third-party, 0 ms blocking
Warning::
Third-party code accounts for 57% of page weight (230.9 KiB of 404.7 KiB)
Info::
Third-party blocking time is low (0 ms)
43%
57%
First-party Third-party
B
Image Optimization
3 images, 0 KB saveable
REVIEW
3 images, 0 KB saveable
Warning::
https://skippa.cc/logo_header.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
3 images 163 KB
0 oversized -0 KB
3 legacy format
1 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

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.
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

A+
Page Weight Budget
405 KB transferred, 14 requests
PASS
405 KB transferred, 14 requests
Info::
Page weighs 504 KB (405 KB transferred)
Info::
14 HTTP requests
Info::
Estimated 0.08 g CO2 per page load
405 KB / 2.4 MB budget
405 KB transferred
14 requests
0.08 g CO2 per page load
Images 162.7 KiB 40%
Other 112.3 KiB 28%
Fonts 71.3 KiB 18%
CSS 25.3 KiB 6%
HTML 24.4 KiB 6%
Other 4.3 KiB 1%
JavaScript 3.2 KiB 1%
Other 1.1 KiB 0%
Other 0 B 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+
JS Execution Cost
362ms total JS execution
PASS
362ms total JS execution
Info::
https://skippa.cc/: 226ms CPU time
Info::
Unattributable: 136ms CPU time

Main Thread Breakdown

Other 48% Style & Layout 34% Parse HTML & CSS 7% Script Evaluation 6% Rendering 4%
ScriptTotalScriptingParse/CompileParty
https://skippa.cc/226ms7ms1ms1st
Unattributable136ms6ms0ms1st
A+
Font Loading
1 fonts (71 KB)
PASS
1 fonts (71 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

71 KB total

Render-blocking

0

of 1

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 3.0 s LCP 3.5 shttps://fonts.gstatic.com/s/inter/v20/UcCo3FwrK3iLTcviYwYZ8UA3.woff2UcCo3FwrK3iLTcviYwYZ8UA... https://fonts.gstatic.com/s/inter/v20/UcCo3FwrK3iLTcviYwYZ8UA3.woff2 — 71.3 KiB — 108 ms — font-display: swap
UcCo3FwrK3iLTcviYwYZ8UA... woff2 swap
Size 71 KB
Load time 108 ms
Start 282 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+
JS Bundles
1 scripts, 0 KB unused
PASS
1 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cloud.umami.is/script.js3 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 Response Intelligence
1 server-response signal(s) detected
PASS
1 server-response signal(s) detected
Info::
`ETag` present -- conditional GET supported
A
Page Weight Inventory
14 resources · 405 KB · 0 KB savings available
PASS
14 resources · 405 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 405 KB
Warning::
9 third-party resources (57% of weight)
14 resources · 404.7 KiB · 9 third-party Within 1MB page-weight target
Image 41% · 167.0 KiB
Media 28% · 112.3 KiB
Font 18% · 71.3 KiB
CSS 6% · 25.3 KiB
Document 6% · 24.4 KiB
JavaScript 1% · 3.2 KiB
Other 0% · 1.1 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
No render-blocking JS or document.write usage detected
PASS
No render-blocking JS or document.write usage detected
Info::
No JavaScript blocking issues detected
A+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
Network Waterfall
14 requests over 803ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 3.0 s LCP 3.5 shttps://skippa.cc// https://skippa.cc/ — 200 — 14.2 KiB — 147 ms — h2https://skippa.cc/app.css/app.css https://skippa.cc/app.css — 200 — 5.1 KiB — 53 ms — h2https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.csscdnjs.cloudflare.com/ajax/libs/font... https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css — 200 — 19.1 KiB — 87 ms — h3https://skippa.cc/logo_header.png/logo_header.png https://skippa.cc/logo_header.png — 200 — 140.1 KiB — 103 ms — h2https://cloud.umami.is/script.jscloud.umami.is/script.js https://cloud.umami.is/script.js — 200 — 3.2 KiB — 96 ms — h2https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swapfonts.googleapis.com/css2?family=In... https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap — 200 — 1.1 KiB — 92 ms — h2https://skippa.cc/video/05d2748657df16ef95c8d825/embed/video/05d2748657df16ef95c8d825/emb... https://skippa.cc/video/05d2748657df16ef95c8d825/embed — 200 — 10.2 KiB — 47 ms — h2https://fonts.gstatic.com/s/inter/v20/UcCo3FwrK3iLTcviYwYZ8UA3.woff2fonts.gstatic.com/s/inter/v20/UcCo3... https://fonts.gstatic.com/s/inter/v20/UcCo3FwrK3iLTcviYwYZ8UA3.woff2 — 200 — 71.3 KiB — 108 ms — h3https://skippa-img.b-cdn.net/thumbnails/05d2748657df16ef95c8d825.jpgskippa-img.b-cdn.net/thumbnails/05d... https://skippa-img.b-cdn.net/thumbnails/05d2748657df16ef95c8d825.jpg — 200 — 6.8 KiB — 133 ms — h2https://skippa-img.b-cdn.net/profile-pictures/69fdfaed2409a10770445fef.pngskippa-img.b-cdn.net/profile-pictur... https://skippa-img.b-cdn.net/profile-pictures/69fdfaed2409a10770445fef.png — 200 — 15.9 KiB — 130 ms — h2https://skippa.b-cdn.net/videos/05d2748657df16ef95c8d825.mp4?token=3-Kcri3u3msHVX670MQ6Ww&expires=1779130087skippa.b-cdn.net/videos/05d2748657d... https://skippa.b-cdn.net/videos/05d2748657df16ef95c8d825.mp4?token=3-Kcri3u3msHVX670MQ6Ww&expires=1779130087 — 206 — 112.3 KiB — 185 ms — h2https://api-gateway.umami.dev/api/sendapi-gateway.umami.dev/api/send https://api-gateway.umami.dev/api/send — 200 — 0 B — 120 ms — h3https://skippa.cc/favicon.ico/favicon.ico https://skippa.cc/favicon.ico — 200 — 4.3 KiB — 39 ms — h2https://api-gateway.umami.dev/api/sendapi-gateway.umami.dev/api/send https://api-gateway.umami.dev/api/send — 200 — 1.1 KiB — 169 ms — h3
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 (2026-04-19 — 2026-05-16)

LCP (p75)

1406 ms

92% good

INP (p75)

83 ms

94% good

CLS (p75)

0.000

98% good

FCP (p75)

1007 ms

TTFB (p75)

575 ms

This origin passes Core Web Vitals assessment
Image Optimization
1 images, 140 KB total, 139 KB wasted
INFO

Image Optimization Audit

Total Images

1

Total Size

140 KB

Oversized

1

Wasted

139 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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