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https://blog.hypercrites.de

Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
2
REVIEW
8
PASS
13
INFO
3

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

Mobile Desktop
93
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
85
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.
92
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.

2.12 s

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

2.42 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.

0.001

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

4.57 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.

2.42 s

Page Load Progression

433 ms
866 ms
1.3 s
1.7 s
2.2 s
2.6 s
3.0 s
3.5 s
Checks
26
13 PASS 8 REVIEW 2 FIX
D
Page Weight Budget
Action
2.1 MB transferred, 20 requests
FIX
2.1 MB transferred, 20 requests
Info::
Page weighs 2.1 MB (2.1 MB transferred)
Info::
Fonts are 1.0 MB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 1.0 MB
Info::
20 HTTP requests
Info::
Estimated 0.44 g CO2 per page load
2.1 MB / 2.4 MB budget
2.1 MB transferred
20 requests
0.44 g CO2 per page load
Fonts 1.0 MiB 49%
Images 992.0 KiB 46%
CSS 90.2 KiB 4%
HTML 5.7 KiB 0%
Other 1.1 KiB 0%
JavaScript 613 B 0%
0 2.4 MB 4.9 MB
Approaching limit

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

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
Image Optimization
Action
5 images, 0 KB saveable
REVIEW
5 images, 0 KB saveable
Warning::
https://blog.hypercrites.de/postimg/knuhp-exilant.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://blog.hypercrites.de/postimg/f0.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://blog.hypercrites.de/img/hy_watermark_wr.pn... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
5 images 992 KB
0 oversized -0 KB
5 legacy format
3 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

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

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

C
JS Execution Cost
Action
1119ms total JS execution
REVIEW
1119ms total JS execution
Warning::
https://blog.hypercrites.de/: 889ms CPU time
Info::
Unattributable: 230ms CPU time
Info::
Third-party scripts: 230ms (21% of total)

Main Thread Breakdown

Other 67% Style & Layout 23% Rendering 6%
ScriptTotalScriptingParse/CompileParty
https://blog.hypercrites.de/889ms6ms2ms1st
Unattributable230ms7ms0ms3rd
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
Page Weight Inventory
Action
20 resources · 2.1 MB · 0 KB savings available
REVIEW
20 resources · 2.1 MB · 0 KB savings available
Warning::
Page weight 2.1 MB exceeds 1 MB target by 1.1 MB
Got: 2.1 MB Expected: ≤ 1 MB
Info::
2 resources over 200KB
20 resources · 2.1 MiB · 0 third-party 1.1 MiB over 1MB target
Font 49% · 1.0 MiB
Image 46% · 993.1 KiB
CSS 4% · 90.2 KiB
Document 0% · 5.7 KiB
JavaScript 0% · 613 B
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

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
4 fonts (1048 KB)
PASS
4 fonts (1048 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

1048 KB total

Render-blocking

0

of 4

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 2.1 s LCP 2.4 shttps://blog.hypercrites.de/css/fonts/artemis.woff2artemis.woff2 https://blog.hypercrites.de/css/fonts/artemis.woff2 — 4.8 KiB — 228 ms — font-display: swaphttps://blog.hypercrites.de/css/fonts/ShareTechMono-Regular.woffShareTechMono-Regular.woff https://blog.hypercrites.de/css/fonts/ShareTechMono-Regular.woff — 21.0 KiB — 466 ms — font-display: swaphttps://blog.hypercrites.de/css/fonts/MononokiNerdFontMono-Regular.woff2MononokiNerdFontMono-Re... https://blog.hypercrites.de/css/fonts/MononokiNerdFontMono-Regular.woff2 — 977.6 KiB — 932 ms — font-display: swaphttps://blog.hypercrites.de/css/fonts/SUSE-Bold.woff2SUSE-Bold.woff2 https://blog.hypercrites.de/css/fonts/SUSE-Bold.woff2 — 44.8 KiB — 938 ms — font-display: swap
artemis.woff2 woff2 swap
Size 5 KB
Load time 228 ms
Start 2.2 s
Risk FOUT — text flashes from fallback to web font
ShareTechMono-Regular.woff woff swap
Size 21 KB
Load time 466 ms
Start 2.2 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
MononokiNerdFontMono-Re... woff2 swap
Size 978 KB
Load time 932 ms
Start 2.2 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
SUSE-Bold.woff2 woff2 swap
Size 45 KB
Load time 938 ms
Start 2.2 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)

Fixing the unchecked items could save ~495 KB and ~990 ms

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://blog.hypercrites.de/js/parallax.js1 KB—✓1st
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::
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+
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::
1 render-blocking <script src> tag(s) without async/defer
Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
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
20 requests over 3726ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 2.1 s LCP 2.4 shttps://blog.hypercrites.de// https://blog.hypercrites.de/ — 200 — 5.7 KiB — 1.1 s — http/1.1https://blog.hypercrites.de/css/style.css?2026-04-28/css/style.css?2026-04-28 https://blog.hypercrites.de/css/style.css?2026-04-28 — 200 — 13.7 KiB — 225 ms — http/1.1https://blog.hypercrites.de/img/hy_watermark_wr.png/img/hy_watermark_wr.png https://blog.hypercrites.de/img/hy_watermark_wr.png — 200 — 913 B — 223 ms — http/1.1https://blog.hypercrites.de/postimg/knuhp-exilant.jpg/postimg/knuhp-exilant.jpg https://blog.hypercrites.de/postimg/knuhp-exilant.jpg — 200 — 91.0 KiB — 898 ms — http/1.1https://blog.hypercrites.de/postimg/f0.jpg/postimg/f0.jpg https://blog.hypercrites.de/postimg/f0.jpg — 200 — 722.1 KiB — 1.6 s — http/1.1https://blog.hypercrites.de/js/parallax.js/js/parallax.js https://blog.hypercrites.de/js/parallax.js — 200 — 613 B — 1.1 s — http/1.1https://blog.hypercrites.de/css/webfonts/all.min.css/css/webfonts/all.min.css https://blog.hypercrites.de/css/webfonts/all.min.css — 200 — 74.2 KiB — 876 ms — http/1.1https://blog.hypercrites.de/css/fonts/artemis.css/css/fonts/artemis.css https://blog.hypercrites.de/css/fonts/artemis.css — 200 — 362 B — 436 ms — http/1.1https://blog.hypercrites.de/css/fonts/ShareTechMono.css/css/fonts/ShareTechMono.css https://blog.hypercrites.de/css/fonts/ShareTechMono.css — 200 — 415 B — 476 ms — http/1.1https://blog.hypercrites.de/css/fonts/suse.css/css/fonts/suse.css https://blog.hypercrites.de/css/fonts/suse.css — 200 — 768 B — 658 ms — http/1.1https://blog.hypercrites.de/css/fonts/mononoki.css/css/fonts/mononoki.css https://blog.hypercrites.de/css/fonts/mononoki.css — 200 — 389 B — 695 ms — http/1.1https://blog.hypercrites.de/css/fonts/handschrift.css/css/fonts/handschrift.css https://blog.hypercrites.de/css/fonts/handschrift.css — 200 — 431 B — 709 ms — http/1.1https://blog.hypercrites.de/img/background_light.jpg/img/background_light.jpg https://blog.hypercrites.de/img/background_light.jpg — 200 — 175.4 KiB — 682 ms — http/1.1https://blog.hypercrites.de/img/overlay.png/img/overlay.png https://blog.hypercrites.de/img/overlay.png — 200 — 2.6 KiB — 262 ms — http/1.1https://blog.hypercrites.de/css/fonts/artemis.woff2/css/fonts/artemis.woff2 https://blog.hypercrites.de/css/fonts/artemis.woff2 — 200 — 4.8 KiB — 228 ms — http/1.1https://blog.hypercrites.de/css/fonts/ShareTechMono-Regular.woff/css/fonts/ShareTechMono-Regular.wo... https://blog.hypercrites.de/css/fonts/ShareTechMono-Regular.woff — 200 — 21.0 KiB — 466 ms — http/1.1https://blog.hypercrites.de/css/fonts/MononokiNerdFontMono-Regular.woff2/css/fonts/MononokiNerdFontMono-Reg... https://blog.hypercrites.de/css/fonts/MononokiNerdFontMono-Regular.woff2 — 200 — 977.6 KiB — 932 ms — http/1.1https://blog.hypercrites.de/css/fonts/SUSE-Bold.woff2/css/fonts/SUSE-Bold.woff2 https://blog.hypercrites.de/css/fonts/SUSE-Bold.woff2 — 200 — 44.8 KiB — 938 ms — http/1.1https://blog.hypercrites.de/img/favicon.png/img/favicon.png https://blog.hypercrites.de/img/favicon.png — 200 — 542 B — 234 ms — http/1.1https://blog.hypercrites.de/img/favicon-32.png/img/favicon-32.png https://blog.hypercrites.de/img/favicon-32.png — 200 — 572 B — 233 ms — http/1.1
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
21% of JavaScript execution is third-party
First-party Third-party 230ms · 0KB · €2/mo
Unattributable
Other
Costly
Execution 230ms
Transfer 0 KB
Monthly Cost €2/mo

These scripts may cost more than they're worth

  • Unattributable adds 230ms and costs ~€2/month

Unattributable takes 230ms 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
3 images, 813 KB total, 778 KB wasted
INFO

Image Optimization Audit

Total Images

3

Total Size

813 KB

Oversized

2

Wasted

778 KB

3 missing dimensions 2 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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