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https://destatis.de

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
4
REVIEW
4
PASS
5
INFO
2

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

Mobile Desktop
69
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
95
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.

1.32 s

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

3.40 s

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

61 ms

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

0.008

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

3.77 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.

3.49 s

Page Load Progression

927 ms
1.9 s
2.8 s
3.7 s
4.6 s
5.6 s
6.5 s
7.4 s
Checks
15
5 PASS 4 REVIEW 4 FIX
D
Page Weight Budget
Action
2.2 MB transferred, 50 requests
FIX
2.2 MB transferred, 50 requests
Info::
Page weighs 4.6 MB (2.2 MB transferred)
Warning::
JavaScript is 949 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 949 KB
Info::
Fonts are 309 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 309 KB
Info::
50 HTTP requests
Info::
Estimated 0.47 g CO2 per page load
2.2 MB / 2.4 MB budget
2.2 MB transferred
50 requests
0.47 g CO2 per page load
JavaScript 948.9 KiB 42%
Images 887.9 KiB 39%
Fonts 309.0 KiB 14%
CSS 101.0 KiB 4%
HTML 21.7 KiB 1%
Other 9.4 KiB 0%
Other 5.6 KiB 0%
0 2.4 MB 4.9 MB
Approaching limit

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

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

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 (2.2 MiB of 2.2 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Bundles
Action
2 scripts, 581 KB unused
FIX
2 scripts, 581 KB unused
Warning::
https://www.destatis.de/SiteGlobals/Frontend/JavaS...: 581 KB unused (65%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.destatis.de/SiteGlobals/Frontend/JavaS...: unminified — 151 KB could be saved
Info::
Total unused JavaScript: 581 KB
581 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.destatis.de/SiteGlobals/Frontend/JavaScript/init/global.js?v=59893 KB581 KB (65%)✗3rd
https://faktenfuchs.destatis.bundesbots.de/widget/widget/56 KB—✓3rd

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

F
Page Weight Inventory
Action
50 resources · 2.2 MB · 581 KB savings available
FIX
50 resources · 2.2 MB · 581 KB savings available
Warning::
Page weight 1.2 MB over 1MB target
Got: 2.2 MB Expected: ≤ 1 MB
Info::
~581 KB of savings available
Warning::
49 third-party resources (100% of weight)
Info::
2 resources over 200KB
50 resources · 2.2 MiB · 49 third-party 1.2 MiB over 1MB target
JavaScript 42% · 948.9 KiB
Image 39% · 890.5 KiB
Font 14% · 309.0 KiB
CSS 4% · 101.0 KiB
Document 1% · 29.9 KiB
Other 0% · 4.2 KiB

~581.3 KiB of savings available

Remove unused JavaScript: 581.3 KiB
C
Image Optimization
Action
25 images, 0 KB saveable
REVIEW
25 images, 0 KB saveable
Warning::
https://www.destatis.de/DE/Home/_documents/_aktuel... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.destatis.de/DE/Home/_documents/_aktuel... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.destatis.de/SiteGlobals/Frontend/Image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.destatis.de/DE/Home/_documents/_aktuel... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.destatis.de/DE/Service/Statistik-Campu... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.destatis.de/DE/Home/_documents/_aktuel... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.destatis.de/SharedDocs/Bilder/DE/Allge... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.destatis.de/SiteGlobals/Frontend/Image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.destatis.de/DE/Methoden/Bilder/wista-l... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.destatis.de/DE/Home/Bilder/standardkac... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.destatis.de/DE/Home/Bilder/standardkac... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.destatis.de/DE/Home/_documents/_aktuel... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.destatis.de/DE/Home/Bilder/kachelbild-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.destatis.de/SiteGlobals/Frontend/Image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
25 images 888 KB
0 oversized -0 KB
25 legacy format
14 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

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

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

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

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

B
JS Execution Cost
896ms total JS execution
REVIEW
896ms total JS execution
Warning::
https://www.destatis.de/SiteGlobals/Frontend/JavaS...: 453ms CPU time
Warning::
https://www.destatis.de/DE/Home/_inhalt.html: 311ms CPU time
Info::
Unattributable: 131ms CPU time
Warning::
Third-party scripts: 896ms (100% of total)

Main Thread Breakdown

Style & Layout 37% Script Evaluation 25% Other 17% Script Parsing & Compilation 12% Rendering 6% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
https://www.destatis.de/SiteGlobals/Frontend/JavaScript/init/global.js?v=59453ms208ms105ms3rd
https://www.destatis.de/DE/Home/_inhalt.html311ms1ms0ms3rd
Unattributable131ms2ms0ms3rd
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

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

max-age=0

DirectiveValueMeaning
max-age0Cache for 0 seconds
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
8 fonts (309 KB)
PASS
8 fonts (309 KB)
Info::
8 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

8

309 KB total

Render-blocking

0

of 8

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 6.0 s 7.0 s FCP 1.3 s LCP 3.4 shttps://www.destatis.de/static/fonts/statissans/StatisSans-Medium.woff2StatisSans-Medium.woff2 https://www.destatis.de/static/fonts/statissans/StatisSans-Medium.woff2 — 38.3 KiB — 288 ms — font-display: swaphttps://www.destatis.de/static/fonts/statissans/StatisSans-Bold.woff2StatisSans-Bold.woff2 https://www.destatis.de/static/fonts/statissans/StatisSans-Bold.woff2 — 38.4 KiB — 289 ms — font-display: swaphttps://www.destatis.de/static/fonts/statissans/StatisSans-Italic.woff2StatisSans-Italic.woff2 https://www.destatis.de/static/fonts/statissans/StatisSans-Italic.woff2 — 39.4 KiB — 454 ms — font-display: swaphttps://www.destatis.de/static/fonts/statissans/StatisSans-Book.woff2StatisSans-Book.woff2 https://www.destatis.de/static/fonts/statissans/StatisSans-Book.woff2 — 47.9 KiB — 456 ms — font-display: swaphttps://www.destatis.de/static/fonts/statissans/StatisSans-Regular.woff2StatisSans-Regular.woff2 https://www.destatis.de/static/fonts/statissans/StatisSans-Regular.woff2 — 37.1 KiB — 457 ms — font-display: swaphttps://www.destatis.de/static/fonts/statissans/StatisSans-Light.woff2StatisSans-Light.woff2 https://www.destatis.de/static/fonts/statissans/StatisSans-Light.woff2 — 38.1 KiB — 458 ms — font-display: swaphttps://faktenfuchs.destatis.bundesbots.de/static/widget-static/static/media/BundesSans-Web-Regular.632386a7a9c91235.woff2BundesSans-Web-Regular.... https://faktenfuchs.destatis.bundesbots.de/static/widget-static/static/media/BundesSans-Web-Regular.632386a7a9c91235.woff2 — 31.4 KiB — 1.4 s — font-display: swaphttps://www.destatis.de/static/fonts/statissans/StatisSans-SemiBold.woff2StatisSans-SemiBold.woff2 https://www.destatis.de/static/fonts/statissans/StatisSans-SemiBold.woff2 — 38.3 KiB — 207 ms — font-display: swap
StatisSans-Medium.woff2 woff2 swap
Size 38 KB
Load time 288 ms
Start 2.3 s
Risk FOUT — text flashes from fallback to web font
StatisSans-Bold.woff2 woff2 swap
Size 38 KB
Load time 289 ms
Start 2.3 s
Risk FOUT — text flashes from fallback to web font
StatisSans-Italic.woff2 woff2 swap
Size 39 KB
Load time 454 ms
Start 2.3 s
Risk FOUT — text flashes from fallback to web font
StatisSans-Book.woff2 woff2 swap
Size 48 KB
Load time 456 ms
Start 2.3 s
Risk FOUT — text flashes from fallback to web font
StatisSans-Regular.woff2 woff2 swap
Size 37 KB
Load time 457 ms
Start 2.3 s
Risk FOUT — text flashes from fallback to web font
StatisSans-Light.woff2 woff2 swap
Size 38 KB
Load time 458 ms
Start 2.3 s
Risk FOUT — text flashes from fallback to web font
BundesSans-Web-Regular.... woff2 swap
Size 31 KB
Load time 1.4 s
Start 5.8 s
Risk FOUT — text flashes from fallback to web font
StatisSans-SemiBold.woff2 woff2 swap
Size 38 KB
Load time 207 ms
Start 6.0 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+
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
Network Waterfall
50 requests over 7417ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s FCP 1.3 s LCP 3.4 shttps://destatis.de// https://destatis.de/ — 302 — 581 B — 793 ms — h2https://www.destatis.de/www.destatis.de/ https://www.destatis.de/ — 302 — 2.4 KiB — 608 ms — h2https://www.destatis.de/DE/Home/_inhalt.htmlwww.destatis.de/DE/Home/_inhalt.htm... https://www.destatis.de/DE/Home/_inhalt.html — 200 — 21.7 KiB — 394 ms — h2https://www.destatis.de/SiteGlobals/Frontend/Styles/normalize.css?v=3www.destatis.de/SiteGlobals/Fronten... https://www.destatis.de/SiteGlobals/Frontend/Styles/normalize.css?v=3 — 200 — 3.3 KiB — 202 ms — h2https://www.destatis.de/SiteGlobals/Frontend/Styles/_libs.css?v=2www.destatis.de/SiteGlobals/Fronten... https://www.destatis.de/SiteGlobals/Frontend/Styles/_libs.css?v=2 — 200 — 15.8 KiB — 204 ms — h2https://www.destatis.de/SiteGlobals/Frontend/Styles/small.css?v=103www.destatis.de/SiteGlobals/Fronten... https://www.destatis.de/SiteGlobals/Frontend/Styles/small.css?v=103 — 200 — 41.6 KiB — 409 ms — h2https://www.destatis.de/SiteGlobals/Frontend/Styles/medium.css?v=66www.destatis.de/SiteGlobals/Fronten... https://www.destatis.de/SiteGlobals/Frontend/Styles/medium.css?v=66 — 200 — 9.4 KiB — 397 ms — h2https://www.destatis.de/SiteGlobals/Frontend/Styles/large.css?v=78www.destatis.de/SiteGlobals/Fronten... https://www.destatis.de/SiteGlobals/Frontend/Styles/large.css?v=78 — 200 — 14.1 KiB — 406 ms — h2https://www.destatis.de/SiteGlobals/Frontend/Styles/custom.css?v=70www.destatis.de/SiteGlobals/Fronten... https://www.destatis.de/SiteGlobals/Frontend/Styles/custom.css?v=70 — 200 — 4.6 KiB — 405 ms — h2https://www.destatis.de/SiteGlobals/Frontend/Styles/custom_destatis.css?v=43www.destatis.de/SiteGlobals/Fronten... https://www.destatis.de/SiteGlobals/Frontend/Styles/custom_destatis.css?v=43 — 200 — 2.9 KiB — 405 ms — h2https://www.destatis.de/SiteGlobals/Frontend/Styles/custom_xmas.css?v=2www.destatis.de/SiteGlobals/Fronten... https://www.destatis.de/SiteGlobals/Frontend/Styles/custom_xmas.css?v=2 — 200 — 2.6 KiB — 404 ms — h2https://faktenfuchs.destatis.bundesbots.de/widget/widget/faktenfuchs.destatis.bundesbots.de/... https://faktenfuchs.destatis.bundesbots.de/widget/widget/ — 200 — 55.6 KiB — 3.9 s — http/1.1https://www.destatis.de/SiteGlobals/Frontend/JavaScript/init/global.js?v=59www.destatis.de/SiteGlobals/Fronten... https://www.destatis.de/SiteGlobals/Frontend/JavaScript/init/global.js?v=59 — 200 — 893.3 KiB — 1.2 s — h2https://www.destatis.de/SiteGlobals/Frontend/Images/logo.svg?__blob=normal&v=11www.destatis.de/SiteGlobals/Fronten... https://www.destatis.de/SiteGlobals/Frontend/Images/logo.svg?__blob=normal&v=11 — 200 — 23.9 KiB — 573 ms — h2https://www.destatis.de/SiteGlobals/Forms/_components/Buttons/Submit_weiss.svg?__blob=image&v=1www.destatis.de/SiteGlobals/Forms/_... https://www.destatis.de/SiteGlobals/Forms/_components/Buttons/Submit_weiss.svg?__blob=image&v=1 — 200 — 3.0 KiB — 575 ms — h2https://www.destatis.de/SiteGlobals/Frontend/Images/icons/achtung.svg?__blob=normal&v=5www.destatis.de/SiteGlobals/Fronten... https://www.destatis.de/SiteGlobals/Frontend/Images/icons/achtung.svg?__blob=normal&v=5 — 200 — 2.7 KiB — 575 ms — h2https://www.destatis.de/SiteGlobals/Forms/_components/Buttons/Submit_blau.svg?__blob=image&v=1www.destatis.de/SiteGlobals/Forms/_... https://www.destatis.de/SiteGlobals/Forms/_components/Buttons/Submit_blau.svg?__blob=image&v=1 — 200 — 3.0 KiB — 576 ms — h2https://www.destatis.de/DE/Home/Bilder/standardkachel-ankuendigung.svg?__blob=normal&v=2www.destatis.de/DE/Home/Bilder/stan... https://www.destatis.de/DE/Home/Bilder/standardkachel-ankuendigung.svg?__blob=normal&v=2 — 200 — 11.0 KiB — 578 ms — h2https://www.destatis.de/SiteGlobals/Frontend/Images/icons/sprite.svg?__blob=normal&v=37www.destatis.de/SiteGlobals/Fronten... https://www.destatis.de/SiteGlobals/Frontend/Images/icons/sprite.svg?__blob=normal&v=37 — 200 — 206.4 KiB — 672 ms — h2https://www.destatis.de/static/fonts/statissans/StatisSans-Medium.woff2www.destatis.de/static/fonts/statis... https://www.destatis.de/static/fonts/statissans/StatisSans-Medium.woff2 — 200 — 38.3 KiB — 288 ms — h2https://www.destatis.de/static/fonts/statissans/StatisSans-Bold.woff2www.destatis.de/static/fonts/statis... https://www.destatis.de/static/fonts/statissans/StatisSans-Bold.woff2 — 200 — 38.4 KiB — 289 ms — h2https://www.destatis.de/static/fonts/statissans/StatisSans-Italic.woff2www.destatis.de/static/fonts/statis... https://www.destatis.de/static/fonts/statissans/StatisSans-Italic.woff2 — 200 — 39.4 KiB — 454 ms — h2https://www.destatis.de/static/fonts/statissans/StatisSans-Book.woff2www.destatis.de/static/fonts/statis... https://www.destatis.de/static/fonts/statissans/StatisSans-Book.woff2 — 200 — 47.9 KiB — 456 ms — h2https://www.destatis.de/static/fonts/statissans/StatisSans-Regular.woff2www.destatis.de/static/fonts/statis... https://www.destatis.de/static/fonts/statissans/StatisSans-Regular.woff2 — 200 — 37.1 KiB — 457 ms — h2https://www.destatis.de/static/fonts/statissans/StatisSans-Light.woff2www.destatis.de/static/fonts/statis... https://www.destatis.de/static/fonts/statissans/StatisSans-Light.woff2 — 200 — 38.1 KiB — 458 ms — h2https://www.destatis.de/DE/Home/Bilder/standardkachel-aktuell.png?__blob=normal&v=4www.destatis.de/DE/Home/Bilder/stan... https://www.destatis.de/DE/Home/Bilder/standardkachel-aktuell.png?__blob=normal&v=4 — 200 — 8.4 KiB — 202 ms — h2https://www.destatis.de/DE/Methoden/Bilder/wista-logo.png?__blob=normal&v=2www.destatis.de/DE/Methoden/Bilder/... https://www.destatis.de/DE/Methoden/Bilder/wista-logo.png?__blob=normal&v=2 — 200 — 39.0 KiB — 205 ms — h2https://www.destatis.de/DE/Home/_documents/_aktuelles/Bilder/icon-dashboard.jpg?__blob=normal&v=2www.destatis.de/DE/Home/_documents/... https://www.destatis.de/DE/Home/_documents/_aktuelles/Bilder/icon-dashboard.jpg?__blob=normal&v=2 — 200 — 101.5 KiB — 211 ms — h2https://www.destatis.de/DE/Home/Bilder/kachelbild-im-fokus-rot.png?__blob=normal&v=6www.destatis.de/DE/Home/Bilder/kach... https://www.destatis.de/DE/Home/Bilder/kachelbild-im-fokus-rot.png?__blob=normal&v=6 — 200 — 6.7 KiB — 209 ms — h2https://www.destatis.de/DE/Home/_documents/_aktuelles/Bilder/durchschnittsmensch_gesundheit.jpg?__blob=normal&v=2www.destatis.de/DE/Home/_documents/... https://www.destatis.de/DE/Home/_documents/_aktuelles/Bilder/durchschnittsmensch_gesundheit.jpg?__blob=normal&v=2 — 200 — 60.6 KiB — 200 ms — h2
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s FCP 1.3 s LCP 3.4 shttps://destatis.de// https://destatis.de/ — 302 — 581 B — 793 ms — h2https://www.destatis.de/www.destatis.de/ https://www.destatis.de/ — 302 — 2.4 KiB — 608 ms — h2https://www.destatis.de/DE/Home/_inhalt.htmlwww.destatis.de/DE/Home/_inhalt.htm... https://www.destatis.de/DE/Home/_inhalt.html — 200 — 21.7 KiB — 394 ms — h2https://www.destatis.de/SiteGlobals/Frontend/Styles/normalize.css?v=3www.destatis.de/SiteGlobals/Fronten... https://www.destatis.de/SiteGlobals/Frontend/Styles/normalize.css?v=3 — 200 — 3.3 KiB — 202 ms — h2https://www.destatis.de/SiteGlobals/Frontend/Styles/_libs.css?v=2www.destatis.de/SiteGlobals/Fronten... https://www.destatis.de/SiteGlobals/Frontend/Styles/_libs.css?v=2 — 200 — 15.8 KiB — 204 ms — h2https://www.destatis.de/SiteGlobals/Frontend/Styles/small.css?v=103www.destatis.de/SiteGlobals/Fronten... https://www.destatis.de/SiteGlobals/Frontend/Styles/small.css?v=103 — 200 — 41.6 KiB — 409 ms — 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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 896ms · 915KB · €10/mo
www.destatis.de
Other
Costly
Execution 453ms
Transfer 893 KB
Unused 65%
Monthly Cost €5/mo
www.destatis.de
Other
Costly
Execution 311ms
Transfer 22 KB
Monthly Cost €3/mo
Unattributable
Other
Optional
Execution 131ms
Transfer 0 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • www.destatis.de adds 453ms and costs ~€5/month
  • www.destatis.de adds 311ms and costs ~€3/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.destatis.de takes 453ms 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

65% of www.destatis.de's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

www.destatis.de takes 311ms 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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