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https://bundesfinanzministerium.de

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
84
GRADE
B
FIX
1
REVIEW
7
PASS
7
INFO
2

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

Mobile Desktop
61
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.
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.

5.34 s

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

9.05 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.

5.60 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.

9.07 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
17
7 PASS 7 REVIEW 1 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 (1.3 MiB of 1.3 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
B
Page Weight Budget
1.3 MB transferred, 47 requests
REVIEW
1.3 MB transferred, 47 requests
Info::
Page weighs 3.3 MB (1.3 MB transferred)
Info::
CSS is 253 KB — consider purging unused styles
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
Got: 253 KB
Info::
47 HTTP requests
Info::
Estimated 0.28 g CO2 per page load
1.3 MB / 2.4 MB budget
1.3 MB transferred
47 requests
0.28 g CO2 per page load
Images 654.1 KiB 48%
JavaScript 267.8 KiB 20%
CSS 253.3 KiB 18%
Fonts 155.8 KiB 11%
HTML 35.8 KiB 3%
Other 5.4 KiB 0%
Other 449 B 0%
0 2.4 MB 4.9 MB
Under budget

Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.

Why this matters

CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.

Source: web.dev

C
Image Optimization
Action
11 images, 0 KB saveable
REVIEW
11 images, 0 KB saveable
Warning::
https://www.bundesfinanzministerium.de/Web/DE/Home... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.bundesfinanzministerium.de/Web/DE/Home... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.bundesfinanzministerium.de/Web/DE/Home... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.bundesfinanzministerium.de/Web/DE/Home... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.bundesfinanzministerium.de/Web/DE/Home... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
11 images 654 KB
0 oversized -0 KB
9 legacy format
5 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

B
JS Execution Cost
758ms total JS execution
REVIEW
758ms total JS execution
Info::
https://www.bundesfinanzministerium.de/static/js/r...: 205ms CPU time
Info::
https://www.bundesfinanzministerium.de/Web/DE/Home...: 204ms CPU time
Info::
Unattributable: 173ms CPU time
Info::
https://www.bundesfinanzministerium.de/SiteGlobals...: 120ms CPU time
Info::
https://www.bundesfinanzministerium.de/static/css/...: 57ms CPU time
Warning::
Third-party scripts: 758ms (100% of total)

Main Thread Breakdown

Script Evaluation 31% Style & Layout 26% Other 25% Parse HTML & CSS 10% Script Parsing & Compilation 7%
ScriptTotalScriptingParse/CompileParty
https://www.bundesfinanzministerium.de/static/js/r2d2.js205ms122ms27ms3rd
https://www.bundesfinanzministerium.de/Web/DE/Home/home.html204ms12ms3ms3rd
Unattributable173ms4ms0ms3rd
https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/script-vendor.js?v=1120ms55ms16ms3rd
https://www.bundesfinanzministerium.de/static/css/r2d2.min.css57ms0ms0ms3rd
B
JS Bundles
20 scripts, 149 KB unused
REVIEW
20 scripts, 149 KB unused
Warning::
https://www.bundesfinanzministerium.de/static/js/r...: 79 KB unused (68%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.bundesfinanzministerium.de/SiteGlobals...: 47 KB unused (70%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.bundesfinanzministerium.de/SiteGlobals...: 24 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 149 KB
149 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.bundesfinanzministerium.de/static/js/r2d2.js117 KB79 KB (68%)✓3rd
https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/script-vendor.js?v=168 KB47 KB (70%)✓3rd
https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/lib/jquery360.js?v=133 KB24 KB (75%)✓3rd
https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/Addon_Autosuggest.js2 KB—✓3rd
https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/Addon_FunctionsBar.js3 KB—✓3rd
https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/Init.js?v=15 KB—✓3rd
https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/Addon_FlyoutMenu.js2 KB—✓3rd
https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/Addon_MobileNavi.js2 KB—✓3rd
https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/Addon_StickyNav.js2 KB—✓3rd
https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/Addon_Printlink.js2 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

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

C
Page Weight Inventory
Action
47 resources · 1.3 MB · 149 KB savings available
REVIEW
47 resources · 1.3 MB · 149 KB savings available
Warning::
Page weight 349 KB over 1MB target
Got: 1.3 MB Expected: ≤ 1 MB
Info::
~149 KB of savings available
Warning::
46 third-party resources (100% of weight)
Info::
1 resources over 200KB
47 resources · 1.3 MiB · 46 third-party 348.6 KiB over 1MB target
Image 48% · 657.5 KiB
JavaScript 20% · 267.8 KiB
CSS 18% · 253.3 KiB
Font 11% · 155.8 KiB
Document 3% · 37.7 KiB
Other 0% · 449 B

~149.3 KiB of savings available

Remove unused JavaScript: 149.3 KiB
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

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

public

DirectiveValueMeaning
public—Any cache may store this response
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 (156 KB)
PASS
4 fonts (156 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

156 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 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 5.3 s LCP 9.1 shttps://www.bundesfinanzministerium.de/static/fonts/BundesSansWeb-Regular.woff2BundesSansWeb-Regular.w... https://www.bundesfinanzministerium.de/static/fonts/BundesSansWeb-Regular.woff2 — 38.9 KiB — 64 ms — font-display: swaphttps://www.bundesfinanzministerium.de/static/fonts/BundesSansWeb-Bold.woff2BundesSansWeb-Bold.woff2 https://www.bundesfinanzministerium.de/static/fonts/BundesSansWeb-Bold.woff2 — 40.9 KiB — 68 ms — font-display: swaphttps://www.bundesfinanzministerium.de/static/fonts/BundesSerifWeb-Regular.woff2BundesSerifWeb-Regular.... https://www.bundesfinanzministerium.de/static/fonts/BundesSerifWeb-Regular.woff2 — 44.5 KiB — 54 ms — font-display: swaphttps://www.bundesfinanzministerium.de/static/fonts/soehne-kraeftig.woff2soehne-kraeftig.woff2 https://www.bundesfinanzministerium.de/static/fonts/soehne-kraeftig.woff2 — 31.5 KiB — 53 ms — font-display: swap
BundesSansWeb-Regular.w... woff2 swap
Size 39 KB
Load time 64 ms
Start 591 ms
Risk FOUT — text flashes from fallback to web font
BundesSansWeb-Bold.woff2 woff2 swap
Size 41 KB
Load time 68 ms
Start 591 ms
Risk FOUT — text flashes from fallback to web font
BundesSerifWeb-Regular.... woff2 swap
Size 44 KB
Load time 54 ms
Start 591 ms
Risk FOUT — text flashes from fallback to web font
soehne-kraeftig.woff2 woff2 swap
Size 32 KB
Load time 53 ms
Start 592 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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
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
47 requests over 936ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 5.3 s LCP 9.1 shttps://bundesfinanzministerium.de// https://bundesfinanzministerium.de/ — 301 — 177 B — 123 ms — h2https://www.bundesfinanzministerium.de/www.bundesfinanzministerium.de/ https://www.bundesfinanzministerium.de/ — 302 — 1.8 KiB — 65 ms — h2https://www.bundesfinanzministerium.de/Web/DE/Home/home.htmlwww.bundesfinanzministerium.de/Web/... https://www.bundesfinanzministerium.de/Web/DE/Home/home.html — 200 — 35.8 KiB — 141 ms — h2https://www.bundesfinanzministerium.de/static/css/vendor.min.csswww.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/css/vendor.min.css — 200 — 14.8 KiB — 57 ms — h2https://www.bundesfinanzministerium.de/static/css/screen.min.csswww.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/css/screen.min.css — 200 — 24.3 KiB — 148 ms — h2https://www.bundesfinanzministerium.de/static/css/elements.min.csswww.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/css/elements.min.css — 200 — 60.5 KiB — 83 ms — h2https://www.bundesfinanzministerium.de/static/css/r2d2.min.csswww.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/css/r2d2.min.css — 200 — 143.4 KiB — 124 ms — h2https://www.bundesfinanzministerium.de/SiteGlobals/StyleBundles/CSS/screen/hotfix.css?v=4www.bundesfinanzministerium.de/Site... https://www.bundesfinanzministerium.de/SiteGlobals/StyleBundles/CSS/screen/hotfix.css?v=4 — 200 — 2.7 KiB — 123 ms — h2https://www.bundesfinanzministerium.de/static/js/r2d2.jswww.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/js/r2d2.js — 200 — 116.6 KiB — 175 ms — h2https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/lib/jquery360.js?v=1www.bundesfinanzministerium.de/Site... https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/lib/jquery360.js?v=1 — 200 — 33.2 KiB — 127 ms — h2https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/script-vendor.js?v=1www.bundesfinanzministerium.de/Site... https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/script-vendor.js?v=1 — 200 — 67.9 KiB — 148 ms — h2https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/require.js?v=1www.bundesfinanzministerium.de/Site... https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/require.js?v=1 — 200 — 8.0 KiB — 131 ms — h2https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/Bmf_PageLoading.js?v=1www.bundesfinanzministerium.de/Site... https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/Bmf_PageLoading.js?v=1 — 200 — 2.2 KiB — 131 ms — h2https://www.bundesfinanzministerium.de/static/manifest.jsonwww.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/manifest.json — 200 — 449 B — 194 ms — h2https://www.bundesfinanzministerium.de/Web/DE/Home/ThemenTeaser/themen-teaser-2-bild.jpg?__blob=wide&v=290www.bundesfinanzministerium.de/Web/... https://www.bundesfinanzministerium.de/Web/DE/Home/ThemenTeaser/themen-teaser-2-bild.jpg?__blob=wide&v=290 — 200 — 48.3 KiB — 68 ms — h2https://www.bundesfinanzministerium.de/Web/DE/Home/ThemenTeaser/themen-teaser-3-bild.jpg?__blob=wide&v=305www.bundesfinanzministerium.de/Web/... https://www.bundesfinanzministerium.de/Web/DE/Home/ThemenTeaser/themen-teaser-3-bild.jpg?__blob=wide&v=305 — 200 — 44.1 KiB — 55 ms — h2https://www.bundesfinanzministerium.de/Web/DE/Home/ThemenTeaser/themen-teaser-1-bild.jpg?__blob=poster&v=158www.bundesfinanzministerium.de/Web/... https://www.bundesfinanzministerium.de/Web/DE/Home/ThemenTeaser/themen-teaser-1-bild.jpg?__blob=poster&v=158 — 200 — 114.7 KiB — 71 ms — h2https://www.bundesfinanzministerium.de/Web/DE/Home/ServicesModul/newsletter-icon.png?__blob=poster&v=1www.bundesfinanzministerium.de/Web/... https://www.bundesfinanzministerium.de/Web/DE/Home/ServicesModul/newsletter-icon.png?__blob=poster&v=1 — 200 — 4.4 KiB — 54 ms — h2https://www.bundesfinanzministerium.de/Web/DE/Home/ServicesModul/meilensteine-icon.png?__blob=poster&v=1www.bundesfinanzministerium.de/Web/... https://www.bundesfinanzministerium.de/Web/DE/Home/ServicesModul/meilensteine-icon.png?__blob=poster&v=1 — 200 — 5.2 KiB — 57 ms — h2https://www.bundesfinanzministerium.de/Web/DE/Home/ServicesModul/newsroom-icon.png?__blob=poster&v=1www.bundesfinanzministerium.de/Web/... https://www.bundesfinanzministerium.de/Web/DE/Home/ServicesModul/newsroom-icon.png?__blob=poster&v=1 — 200 — 4.2 KiB — 60 ms — h2https://www.bundesfinanzministerium.de/Web/DE/Home/ServicesModul/lohn-einkommen-rechner-icon.png?__blob=poster&v=1www.bundesfinanzministerium.de/Web/... https://www.bundesfinanzministerium.de/Web/DE/Home/ServicesModul/lohn-einkommen-rechner-icon.png?__blob=poster&v=1 — 200 — 5.1 KiB — 62 ms — h2https://www.bundesfinanzministerium.de/Web/DE/Home/ServicesModul/kfz-steuer-rechner-icon.png?__blob=poster&v=1www.bundesfinanzministerium.de/Web/... https://www.bundesfinanzministerium.de/Web/DE/Home/ServicesModul/kfz-steuer-rechner-icon.png?__blob=poster&v=1 — 200 — 4.3 KiB — 58 ms — h2https://www.bundesfinanzministerium.de/static/css/print.min.csswww.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/css/print.min.css — 200 — 7.7 KiB — 56 ms — h2https://www.bundesfinanzministerium.de/Web/DE/Home/buehnenbild.png?__blob=poster&v=122www.bundesfinanzministerium.de/Web/... https://www.bundesfinanzministerium.de/Web/DE/Home/buehnenbild.png?__blob=poster&v=122 — 200 — 423.8 KiB — 179 ms — h2data:image/svg+xml;base64, PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyMCIgaGVp…data:image/svg+xml;base64, PHN2ZyB4... data:image/svg+xml;base64, PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyMCIgaGVp… — 200 — 0 B — 0 ms — datahttps://www.bundesfinanzministerium.de/static/fonts/BundesSansWeb-Regular.woff2www.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/fonts/BundesSansWeb-Regular.woff2 — 200 — 38.9 KiB — 64 ms — h2https://www.bundesfinanzministerium.de/static/fonts/BundesSansWeb-Bold.woff2www.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/fonts/BundesSansWeb-Bold.woff2 — 200 — 40.9 KiB — 68 ms — h2https://www.bundesfinanzministerium.de/static/fonts/BundesSerifWeb-Regular.woff2www.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/fonts/BundesSerifWeb-Regular.woff2 — 200 — 44.5 KiB — 54 ms — h2https://www.bundesfinanzministerium.de/static/fonts/soehne-kraeftig.woff2www.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/fonts/soehne-kraeftig.woff2 — 200 — 31.5 KiB — 53 ms — h2https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/Init.js?v=1www.bundesfinanzministerium.de/Site... https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/Init.js?v=1 — 200 — 4.8 KiB — 51 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 8.0 s 9.0 s FCP 5.3 s LCP 9.1 shttps://bundesfinanzministerium.de// https://bundesfinanzministerium.de/ — 301 — 177 B — 123 ms — h2https://www.bundesfinanzministerium.de/www.bundesfinanzministerium.de/ https://www.bundesfinanzministerium.de/ — 302 — 1.8 KiB — 65 ms — h2https://www.bundesfinanzministerium.de/Web/DE/Home/home.htmlwww.bundesfinanzministerium.de/Web/... https://www.bundesfinanzministerium.de/Web/DE/Home/home.html — 200 — 35.8 KiB — 141 ms — h2https://www.bundesfinanzministerium.de/static/css/vendor.min.csswww.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/css/vendor.min.css — 200 — 14.8 KiB — 57 ms — h2https://www.bundesfinanzministerium.de/static/css/screen.min.csswww.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/css/screen.min.css — 200 — 24.3 KiB — 148 ms — h2https://www.bundesfinanzministerium.de/static/css/elements.min.csswww.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/css/elements.min.css — 200 — 60.5 KiB — 83 ms — h2https://www.bundesfinanzministerium.de/static/css/r2d2.min.csswww.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/css/r2d2.min.css — 200 — 143.4 KiB — 124 ms — h2https://www.bundesfinanzministerium.de/SiteGlobals/StyleBundles/CSS/screen/hotfix.css?v=4www.bundesfinanzministerium.de/Site... https://www.bundesfinanzministerium.de/SiteGlobals/StyleBundles/CSS/screen/hotfix.css?v=4 — 200 — 2.7 KiB — 123 ms — h2https://www.bundesfinanzministerium.de/static/js/r2d2.jswww.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/js/r2d2.js — 200 — 116.6 KiB — 175 ms — h2https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/lib/jquery360.js?v=1www.bundesfinanzministerium.de/Site... https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/lib/jquery360.js?v=1 — 200 — 33.2 KiB — 127 ms — h2https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/script-vendor.js?v=1www.bundesfinanzministerium.de/Site... https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/script-vendor.js?v=1 — 200 — 67.9 KiB — 148 ms — h2https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/require.js?v=1www.bundesfinanzministerium.de/Site... https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/require.js?v=1 — 200 — 8.0 KiB — 131 ms — h2https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/Bmf_PageLoading.js?v=1www.bundesfinanzministerium.de/Site... https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/Bmf_PageLoading.js?v=1 — 200 — 2.2 KiB — 131 ms — h2https://www.bundesfinanzministerium.de/static/manifest.jsonwww.bundesfinanzministerium.de/stat... 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h2https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/lib/listbox-combobox.jswww.bundesfinanzministerium.de/Site... https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/lib/listbox-combobox.js — 200 — 3.0 KiB — 95 ms — h2https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/Addon_ConsentBanner.jswww.bundesfinanzministerium.de/Site... https://www.bundesfinanzministerium.de/SiteGlobals/Functions/JavaScript/Addon_ConsentBanner.js — 200 — 2.0 KiB — 50 ms — h2https://www.bundesfinanzministerium.de/static/favicon-32x32.pngwww.bundesfinanzministerium.de/stat... https://www.bundesfinanzministerium.de/static/favicon-32x32.png — 200 — 3.4 KiB — 61 ms — h2
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 758ms · 364KB · €8/mo
www.bundesfinanzministerium.de
Other
Costly
Execution 205ms
Transfer 117 KB
Unused 68%
Monthly Cost €2/mo
www.bundesfinanzministerium.de
Other
Costly
Execution 204ms
Transfer 36 KB
Monthly Cost €2/mo
Unattributable
Other
Optional
Execution 173ms
Transfer 0 KB
Monthly Cost €2/mo
www.bundesfinanzministerium.de
Other
Optional
Execution 120ms
Transfer 68 KB
Unused 70%
Monthly Cost €1/mo
www.bundesfinanzministerium.de
Other
Optional
Execution 57ms
Transfer 143 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • www.bundesfinanzministerium.de adds 205ms and costs ~€2/month
  • www.bundesfinanzministerium.de adds 204ms and costs ~€2/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.bundesfinanzministerium.de takes 205ms 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

68% of www.bundesfinanzministerium.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.bundesfinanzministerium.de takes 204ms 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

70% of www.bundesfinanzministerium.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

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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