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https://Galeria.de

Performance

· 25 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
91
GRADE
A
FIX
2
REVIEW
4
PASS
17
INFO
2

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

Mobile Desktop
89
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
78
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.
90
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.

1.79 s

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

1.79 s

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

402 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.

1.79 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.

3.58 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
25
17 PASS 4 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 (531.3 KiB of 531.7 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.

B
JS Execution Cost
974ms total JS execution
REVIEW
974ms total JS execution
Warning::
https://www.galeria.de/cdn-cgi/challenge-platform/...: 793ms CPU time
Info::
Unattributable: 119ms CPU time
Info::
https://www.galeria.de/: 63ms CPU time
Warning::
Third-party scripts: 974ms (100% of total)

Main Thread Breakdown

Script Evaluation 79% Other 13% Style & Layout 3%
ScriptTotalScriptingParse/CompileParty
https://www.galeria.de/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9f98fb511c8e803e793ms765ms12ms3rd
Unattributable119ms5ms0ms3rd
https://www.galeria.de/63ms9ms2ms3rd
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.
A+
Page Weight Budget
532 KB transferred, 18 requests
PASS
532 KB transferred, 18 requests
Info::
Page weighs 967 KB (532 KB transferred)
Info::
18 HTTP requests
Info::
Estimated 0.11 g CO2 per page load
532 KB / 2.4 MB budget
532 KB transferred
18 requests
0.11 g CO2 per page load
Other 355.5 KiB 67%
HTML 84.8 KiB 16%
JavaScript 81.9 KiB 15%
Images 5.1 KiB 1%
Other 2.7 KiB 1%
Other 1.7 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 5 KB
0 oversized -0 KB
2 legacy format
0 missing dimensions CLS risk
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
7 scripts, 0 KB unused
PASS
7 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.galeria.de/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9f98fb511c8e803e62 KB—✓3rd
blob:https://www.galeria.de/aac937d0-6578-4299-9277-403d744c8ce80 KB—✓3rd
https://challenges.cloudflare.com/turnstile/v0/g/fe6331af5207/api.js?onload=kwkA1&render=explicit20 KB—✓3rd
blob:https://www.galeria.de/52cde179-1b98-4a6b-9bde-3c4bec770878-0 KB—✓3rd
blob:https://challenges.cloudflare.com/cdbfa89e-94f1-4623-9e65-24cbfa3945880 KB—✓3rd
blob:https://challenges.cloudflare.com/dcd9fab8-dcf6-4915-9ce5-227c11ea286f-0 KB—✓3rd
blob:https://challenges.cloudflare.com/dcd9fab8-dcf6-4915-9ce5-227c11ea286f-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+
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-Timing Observability
1 Server-Timing entries advertised
PASS
1 Server-Timing entries advertised
Info::
Server-Timing header advertises 1 timing entries
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
18 resources · 532 KB · 0 KB savings available
PASS
18 resources · 532 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 532 KB
Warning::
16 third-party resources (100% of weight)
Info::
1 resources over 200KB
18 resources · 531.7 KiB · 16 third-party Within 1MB page-weight target
Other 67% · 357.6 KiB
Document 16% · 84.8 KiB
JavaScript 15% · 81.9 KiB
Image 1% · 7.4 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::
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
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
18 requests over 2508ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.8 s LCP 1.8 shttps://galeria.de// https://galeria.de/ — 301 — 385 B — 66 ms — h2https://www.galeria.de/www.galeria.de/ https://www.galeria.de/ — 307 — 60 B — 38 ms — http/1.1https://galeria.de// https://galeria.de/ — 301 — 0 B — 1 ms — h2https://www.galeria.de/www.galeria.de/ https://www.galeria.de/ — 403 — 3.7 KiB — 22 ms — h2https://www.galeria.de/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9f98fb511c8e803ewww.galeria.de/cdn-cgi/challenge-pl... https://www.galeria.de/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9f98fb511c8e803e — 200 — 61.9 KiB — 31 ms — h2blob:https://www.galeria.de/aac937d0-6578-4299-9277-403d744c8ce8www.galeria.de/aac937d0-6578-4299-9... blob:https://www.galeria.de/aac937d0-6578-4299-9277-403d744c8ce8 — -1 — 0 B — 0 ms — https://challenges.cloudflare.com/turnstile/v0/g/fe6331af5207/api.js?onload=kwkA1&render=explicitchallenges.cloudflare.com/turnstile... https://challenges.cloudflare.com/turnstile/v0/g/fe6331af5207/api.js?onload=kwkA1&render=explicit — 200 — 20.0 KiB — 105 ms — h3https://www.galeria.de/favicon.icowww.galeria.de/favicon.ico https://www.galeria.de/favicon.ico — 200 — 2.3 KiB — 32 ms — h2https://www.galeria.de/cdn-cgi/challenge-platform/h/g/flow/ov1/3830783806:1778415757:Uf8IsSoMMoX6SeN_U_yps9qok8_vCxVD7DPyq5CAGmk/9f98fb511c8e803e/BfpGfaB19xkWmMTkE05Y17R3wwRQHrbJHPm6aprbcTk-1778416504-1.2.1.1-_BYspdZ36lsHJbxRQgTkUfNmWDQmkNb1xUPrNX4Jygu4exOz6j2Xebgx5LlpGMuFwww.galeria.de/cdn-cgi/challenge-pl... https://www.galeria.de/cdn-cgi/challenge-platform/h/g/flow/ov1/3830783806:1778415757:Uf8IsSoMMoX6SeN_U_yps9qok8_vCxVD7DPyq5CAGmk/9f98fb511c8e803e/BfpGfaB19xkWmMTkE05Y17R3wwRQHrbJHPm6aprbcTk-1778416504-1.2.1.1-_BYspdZ36lsHJbxRQgTkUfNmWDQmkNb1xUPrNX4Jygu4exOz6j2Xebgx5LlpGMuF — 200 — 15.9 KiB — 36 ms — h2blob:https://www.galeria.de/52cde179-1b98-4a6b-9bde-3c4bec770878www.galeria.de/52cde179-1b98-4a6b-9... blob:https://www.galeria.de/52cde179-1b98-4a6b-9bde-3c4bec770878 — 200 — -1 B — 22 ms — blobhttps://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/turnstile/f/ov2/av0/rch/9kmui/0x4AAAAAAADnPIDROrmt1Wwj/light/fbE/new/normal?lang=autochallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/turnstile/f/ov2/av0/rch/9kmui/0x4AAAAAAADnPIDROrmt1Wwj/light/fbE/new/normal?lang=auto — 200 — 81.1 KiB — 99 ms — h3https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/cmg/1challenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/cmg/1 — 200 — 208 B — 21 ms — h3blob:https://challenges.cloudflare.com/cdbfa89e-94f1-4623-9e65-24cbfa394588challenges.cloudflare.com/cdbfa89e-... blob:https://challenges.cloudflare.com/cdbfa89e-94f1-4623-9e65-24cbfa394588 — -1 — 0 B — 0 ms — https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/flow/ov1/1737470494:1778415758:75by5HLOUiW6pAfPGfZaNat6a2E1XgAYJzSC5U7BgRM/9f98fb533c9322b0/DB6O3Ep2dcfK6YZazcWP1i7MlgFALZ4NIcc3Z0DDrzk-1778416504-1.2.1.1-7jeT01jm7Wo5EARQPhK8uiDffRzHUa4v2DT4eck.F1UC8031buIGLrU45wtyFK7uchallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/flow/ov1/1737470494:1778415758:75by5HLOUiW6pAfPGfZaNat6a2E1XgAYJzSC5U7BgRM/9f98fb533c9322b0/DB6O3Ep2dcfK6YZazcWP1i7MlgFALZ4NIcc3Z0DDrzk-1778416504-1.2.1.1-7jeT01jm7Wo5EARQPhK8uiDffRzHUa4v2DT4eck.F1UC8031buIGLrU45wtyFK7u — 200 — 339.6 KiB — 209 ms — h3blob:https://challenges.cloudflare.com/dcd9fab8-dcf6-4915-9ce5-227c11ea286fchallenges.cloudflare.com/dcd9fab8-... blob:https://challenges.cloudflare.com/dcd9fab8-dcf6-4915-9ce5-227c11ea286f — 200 — -1 B — 19 ms — blobblob:https://challenges.cloudflare.com/dcd9fab8-dcf6-4915-9ce5-227c11ea286fchallenges.cloudflare.com/dcd9fab8-... blob:https://challenges.cloudflare.com/dcd9fab8-dcf6-4915-9ce5-227c11ea286f — 200 — -1 B — 22 ms — blobhttps://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/d/9f98fb533c9322b0/1778416505141/Yop_iGlCSswO4S3challenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/d/9f98fb533c9322b0/1778416505141/Yop_iGlCSswO4S3 — 200 — 4.9 KiB — 21 ms — h3https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/pat/9f98fb533c9322b0/1778416505141/5071dc01b1a1c8dd402dee1f56d44a83373c1c301acbb2bf07fb41f402fc376b/LF-QfpO_SK7CT0Cchallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/pat/9f98fb533c9322b0/1778416505141/5071dc01b1a1c8dd402dee1f56d44a83373c1c301acbb2bf07fb41f402fc376b/LF-QfpO_SK7CT0C — 401 — 1.7 KiB — 22 ms — h3
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 974ms · 66KB · €11/mo
www.galeria.de
Other
Costly
Execution 793ms
Transfer 62 KB
Monthly Cost €9/mo
Unattributable
Other
Optional
Execution 119ms
Transfer 0 KB
Monthly Cost €1/mo
www.galeria.de
Other
Optional
Execution 63ms
Transfer 4 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • www.galeria.de adds 793ms and costs ~€9/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.galeria.de takes 793ms 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

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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