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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
82
GRADE
B
FIX
3
REVIEW
3
PASS
9
INFO
2

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

Mobile Desktop
44
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
97
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.

5.46 s

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

7.07 s

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

726 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.

6.20 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.

7.21 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
9 PASS 3 REVIEW 3 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 (941.8 KiB of 941.9 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
5511ms total JS execution
FIX
5511ms total JS execution
Warning::
https://www.bpb.de/sites/default/files/js/js_dK60X...: 3791ms CPU time
Info::
Unattributable: 246ms CPU time
Info::
https://www.bpb.de/themes/custom/bpbtheme/assets/j...: 199ms CPU time
Info::
https://www.bpb.de/sites/default/files/css/css_vAJ...: 152ms CPU time
Info::
https://www.bpb.de/: 144ms CPU time
Warning::
Third-party scripts: 5511ms (100% of total)

Main Thread Breakdown

Script Evaluation 52% Style & Layout 19% Other 13% Rendering 6% Parse HTML & CSS 4% Garbage Collection 3%
ScriptTotalScriptingParse/CompileParty
https://www.bpb.de/sites/default/files/js/js_dK60XH05EgZeeV86BHWie9c_QkiB_X-RkN2cqHjQhEM.js3791ms1808ms116ms3rd
Unattributable246ms6ms0ms3rd
https://www.bpb.de/themes/custom/bpbtheme/assets/js/7873.7c795960bcb1c4fc34db.js199ms104ms0ms3rd
https://www.bpb.de/sites/default/files/css/css_vAJqd_SsacwAoi3OJssd70jw1Dh4E-vXZ1U0AvLAbFA.css152ms0ms0ms3rd
https://www.bpb.de/144ms4ms3ms3rd
https://www.bpb.de/themes/custom/bpbtheme/assets/js/6194.c904cddcfd75f833bcf2.js131ms54ms1ms3rd
https://www.bpb.de/themes/custom/bpbtheme/assets/js/129.2533cf01e4e8d78ff238.js101ms64ms3ms3rd
https://www.bpb.de/themes/custom/bpbtheme/assets/js/4777.65ea2899b70861fbabdc.js99ms44ms0ms3rd
https://www.bpb.de/themes/custom/bpbtheme/assets/js/6379.785f21fd8a5541d25705.js91ms56ms1ms3rd
https://www.bpb.de/themes/custom/bpbtheme/assets/js/9362.843da9bd4c6c47ac3bbe.js91ms66ms0ms3rd

Showing top 10 of 18 scripts

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
Image Optimization
9 images, 0 KB saveable
REVIEW
9 images, 0 KB saveable
Warning::
data:, is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
9 images 174 KB
0 oversized -0 KB
8 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

C
JS Bundles
Action
33 scripts, 228 KB unused
REVIEW
33 scripts, 228 KB unused
Warning::
https://www.bpb.de/sites/default/files/js/js_dK60X...: 228 KB unused (63%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 228 KB
228 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.bpb.de/sites/default/files/js/js_dK60XH05EgZeeV86BHWie9c_QkiB_X-RkN2cqHjQhEM.js362 KB228 KB (63%)✓3rd
https://www.bpb.de/themes/custom/bpbtheme/assets/js/5152.d2bc131c5434b589ea2b.js1 KB—✓3rd
https://www.bpb.de/themes/custom/bpbtheme/assets/js/111.8610825ddabe5a1fd657.js1 KB—✓3rd
https://www.bpb.de/themes/custom/bpbtheme/assets/js/5699.b14c8d9e5cf114836046.js1 KB—✓3rd
https://www.bpb.de/themes/custom/bpbtheme/assets/js/4441.b5d7c383ff0c1da8e793.js1 KB—✓3rd
https://www.bpb.de/themes/custom/bpbtheme/assets/js/2161.2e35aa4dc46abec1931b.js1 KB—✓3rd
https://www.bpb.de/themes/custom/bpbtheme/assets/js/5837.bc045cdbddd43d194e5b.js1 KB—✓3rd
https://www.bpb.de/themes/custom/bpbtheme/assets/js/1954.37773c7c7645891f91ce.js1 KB—✓3rd
https://www.bpb.de/themes/custom/bpbtheme/assets/js/129.2533cf01e4e8d78ff238.js10 KB—✓3rd
https://www.bpb.de/themes/custom/bpbtheme/assets/js/2817.975bdf87031920e7f3fa.js4 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

B
Page Weight Inventory
53 resources · 942 KB · 228 KB savings available
REVIEW
53 resources · 942 KB · 228 KB savings available
Info::
Within 1MB page-weight target
Got: 942 KB
Info::
~228 KB of savings available
Warning::
52 third-party resources (100% of weight)
Info::
1 resources over 200KB
53 resources · 941.9 KiB · 52 third-party Within 1MB page-weight target
JavaScript 44% · 416.9 KiB
Image 19% · 178.2 KiB
CSS 18% · 169.9 KiB
Font 11% · 107.2 KiB
Document 5% · 48.4 KiB
Other 2% · 21.2 KiB

~228.0 KiB of savings available

Remove unused JavaScript: 228.0 KiB
A
Page Weight Budget
942 KB transferred, 53 requests
PASS
942 KB transferred, 53 requests
Info::
Page weighs 4.2 MB (942 KB transferred)
Info::
53 HTTP requests
Info::
Estimated 0.19 g CO2 per page load
942 KB / 2.4 MB budget
942 KB transferred
53 requests
0.19 g CO2 per page load
JavaScript 416.9 KiB 44%
Images 173.9 KiB 18%
CSS 169.9 KiB 18%
Fonts 107.2 KiB 11%
HTML 48.3 KiB 5%
Other 15.1 KiB 2%
Other 10.6 KiB 1%
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+
Font Loading
5 fonts (107 KB)
PASS
5 fonts (107 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

5

107 KB total

Render-blocking

0

of 5

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 5.5 s LCP 7.1 shttps://www.bpb.de/themes/custom/bpbtheme/assets/fonts/bpb-iconfont/fonts/bpb-iconfont.woff2?kkogbkbpb-iconfont.woff2 https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/bpb-iconfont/fonts/bpb-iconfont.woff2?kkogbk — 15.7 KiB — 119 ms — font-display: swaphttps://www.bpb.de/themes/custom/bpbtheme/assets/fonts/MessinaSansWeb/MessinaSansWeb-Bold.woff2MessinaSansWeb-Bold.woff2 https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/MessinaSansWeb/MessinaSansWeb-Bold.woff2 — 25.7 KiB — 44 ms — font-display: swaphttps://www.bpb.de/themes/custom/bpbtheme/assets/fonts/MessinaSansWeb/MessinaSansWeb-Regular.woff2MessinaSansWeb-Regular.... https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/MessinaSansWeb/MessinaSansWeb-Regular.woff2 — 24.9 KiB — 45 ms — font-display: swaphttps://www.bpb.de/themes/custom/bpbtheme/assets/fonts/bpb-iconfont/fonts/bpb-iconfont.woff2?ybsbfa=bpb-iconfont.woff2 https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/bpb-iconfont/fonts/bpb-iconfont.woff2?ybsbfa= — 15.7 KiB — 46 ms — font-display: swaphttps://www.bpb.de/themes/custom/bpbtheme/assets/fonts/MessinaSansWeb/MessinaSansWeb-SemiBold.woff2MessinaSansWeb-SemiBold... https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/MessinaSansWeb/MessinaSansWeb-SemiBold.woff2 — 25.2 KiB — 36 ms — font-display: swap
bpb-iconfont.woff2 woff2 swap
Size 16 KB
Load time 119 ms
Start 163 ms
Risk FOUT — text flashes from fallback to web font
MessinaSansWeb-Bold.woff2 woff2 swap
Size 26 KB
Load time 44 ms
Start 755 ms
Risk FOUT — text flashes from fallback to web font
MessinaSansWeb-Regular.... woff2 swap
Size 25 KB
Load time 45 ms
Start 756 ms
Risk FOUT — text flashes from fallback to web font
bpb-iconfont.woff2 woff2 swap
Size 16 KB
Load time 46 ms
Start 756 ms
Risk FOUT — text flashes from fallback to web font
MessinaSansWeb-SemiBold... woff2 swap
Size 25 KB
Load time 36 ms
Start 944 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
2 hints, 0 missing preconnects
PASS
2 hints, 0 missing preconnects
Info::
Page uses 2 resource hint(s)

Current Resource Hints

preconnect
—
preload
2
dns-prefetch
—
prefetch
—

2 resource hints configured

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+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: noris network AG

Network Waterfall
53 requests over 1427ms
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 5.5 s LCP 7.1 shttps://bpb.de// https://bpb.de/ — 301 — 103 B — 110 ms — h2https://www.bpb.de/www.bpb.de/ https://www.bpb.de/ — 200 — 48.3 KiB — 108 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/bpb-iconfont/fonts/bpb-iconfont.woff2?kkogbkwww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/bpb-iconfont/fonts/bpb-iconfont.woff2?kkogbk — 200 — 15.7 KiB — 119 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/labels/labels.jsonwww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/labels/labels.json — 200 — 10.6 KiB — 120 ms — h2https://www.bpb.de/sites/default/files/css/css_U-UkLvIUbnReU-Iv-67uifu50PFsMY2x8cm52tWPT6w.csswww.bpb.de/sites/default/files/css/... https://www.bpb.de/sites/default/files/css/css_U-UkLvIUbnReU-Iv-67uifu50PFsMY2x8cm52tWPT6w.css — 200 — 1.5 KiB — 54 ms — h2https://www.bpb.de/sites/default/files/css/css_vAJqd_SsacwAoi3OJssd70jw1Dh4E-vXZ1U0AvLAbFA.csswww.bpb.de/sites/default/files/css/... https://www.bpb.de/sites/default/files/css/css_vAJqd_SsacwAoi3OJssd70jw1Dh4E-vXZ1U0AvLAbFA.css — 200 — 168.4 KiB — 116 ms — h2https://www.bpb.de/sites/default/files/js/js_dK60XH05EgZeeV86BHWie9c_QkiB_X-RkN2cqHjQhEM.jswww.bpb.de/sites/default/files/js/j... https://www.bpb.de/sites/default/files/js/js_dK60XH05EgZeeV86BHWie9c_QkiB_X-RkN2cqHjQhEM.js — 200 — 362.1 KiB — 92 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/labels/labels.json?v=260420www.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/labels/labels.json?v=260420 — 200 — 10.6 KiB — 34 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/5152.d2bc131c5434b589ea2b.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/5152.d2bc131c5434b589ea2b.js — 200 — 891 B — 34 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/111.8610825ddabe5a1fd657.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/111.8610825ddabe5a1fd657.js — 200 — 592 B — 34 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/5699.b14c8d9e5cf114836046.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/5699.b14c8d9e5cf114836046.js — 200 — 843 B — 34 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/4441.b5d7c383ff0c1da8e793.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/4441.b5d7c383ff0c1da8e793.js — 200 — 625 B — 35 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/2161.2e35aa4dc46abec1931b.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/2161.2e35aa4dc46abec1931b.js — 200 — 1012 B — 34 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/5837.bc045cdbddd43d194e5b.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/5837.bc045cdbddd43d194e5b.js — 200 — 756 B — 35 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/1954.37773c7c7645891f91ce.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/1954.37773c7c7645891f91ce.js — 200 — 596 B — 36 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/129.2533cf01e4e8d78ff238.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/129.2533cf01e4e8d78ff238.js — 200 — 10.4 KiB — 37 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/2817.975bdf87031920e7f3fa.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/2817.975bdf87031920e7f3fa.js — 200 — 3.7 KiB — 39 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/8404.57e3f29a644e4e21b15d.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/8404.57e3f29a644e4e21b15d.js — 200 — 1.1 KiB — 40 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/9299.65204307f081e62fd68e.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/9299.65204307f081e62fd68e.js — 200 — 1.4 KiB — 41 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/7873.7c795960bcb1c4fc34db.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/7873.7c795960bcb1c4fc34db.js — 200 — 1.1 KiB — 42 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/3882.bfc6e02b17117550a6fc.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/3882.bfc6e02b17117550a6fc.js — 200 — 971 B — 35 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/7228.d41d87853b7acb0a4155.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/7228.d41d87853b7acb0a4155.js — 200 — 2.8 KiB — 36 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/6194.c904cddcfd75f833bcf2.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/6194.c904cddcfd75f833bcf2.js — 200 — 3.8 KiB — 37 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/4777.65ea2899b70861fbabdc.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/4777.65ea2899b70861fbabdc.js — 200 — 980 B — 38 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/375.06367c1ebcf464e00a76.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/375.06367c1ebcf464e00a76.js — 200 — 1.2 KiB — 40 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/2635.881cec12e44de38bb4b9.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/2635.881cec12e44de38bb4b9.js — 200 — 4.1 KiB — 41 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/105.25fbdc481d7b74ce2596.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/105.25fbdc481d7b74ce2596.js — 200 — 4.1 KiB — 34 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/1757.e1982ae50930c040b6e8.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/1757.e1982ae50930c040b6e8.js — 200 — 4.2 KiB — 36 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/242.093611321d58f5182f0f.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/242.093611321d58f5182f0f.js — 200 — 728 B — 37 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/5899.0c4f92212a621ca4eb28.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/5899.0c4f92212a621ca4eb28.js — 200 — 597 B — 37 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 5.5 s LCP 7.1 shttps://bpb.de// https://bpb.de/ — 301 — 103 B — 110 ms — h2https://www.bpb.de/www.bpb.de/ https://www.bpb.de/ — 200 — 48.3 KiB — 108 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/bpb-iconfont/fonts/bpb-iconfont.woff2?kkogbkwww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/bpb-iconfont/fonts/bpb-iconfont.woff2?kkogbk — 200 — 15.7 KiB — 119 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/labels/labels.jsonwww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/labels/labels.json — 200 — 10.6 KiB — 120 ms — h2https://www.bpb.de/sites/default/files/css/css_U-UkLvIUbnReU-Iv-67uifu50PFsMY2x8cm52tWPT6w.csswww.bpb.de/sites/default/files/css/... https://www.bpb.de/sites/default/files/css/css_U-UkLvIUbnReU-Iv-67uifu50PFsMY2x8cm52tWPT6w.css — 200 — 1.5 KiB — 54 ms — h2https://www.bpb.de/sites/default/files/css/css_vAJqd_SsacwAoi3OJssd70jw1Dh4E-vXZ1U0AvLAbFA.csswww.bpb.de/sites/default/files/css/... https://www.bpb.de/sites/default/files/css/css_vAJqd_SsacwAoi3OJssd70jw1Dh4E-vXZ1U0AvLAbFA.css — 200 — 168.4 KiB — 116 ms — h2https://www.bpb.de/sites/default/files/js/js_dK60XH05EgZeeV86BHWie9c_QkiB_X-RkN2cqHjQhEM.jswww.bpb.de/sites/default/files/js/j... https://www.bpb.de/sites/default/files/js/js_dK60XH05EgZeeV86BHWie9c_QkiB_X-RkN2cqHjQhEM.js — 200 — 362.1 KiB — 92 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/labels/labels.json?v=260420www.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/labels/labels.json?v=260420 — 200 — 10.6 KiB — 34 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/5152.d2bc131c5434b589ea2b.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/5152.d2bc131c5434b589ea2b.js — 200 — 891 B — 34 ms — 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h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/2635.881cec12e44de38bb4b9.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/2635.881cec12e44de38bb4b9.js — 200 — 4.1 KiB — 41 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/105.25fbdc481d7b74ce2596.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/105.25fbdc481d7b74ce2596.js — 200 — 4.1 KiB — 34 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/1757.e1982ae50930c040b6e8.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/1757.e1982ae50930c040b6e8.js — 200 — 4.2 KiB — 36 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/242.093611321d58f5182f0f.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/242.093611321d58f5182f0f.js — 200 — 728 B — 37 ms — 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h2https://www.bpb.de/themes/custom/bpbtheme/assets/images/spritesheets/circle_white_36.pngwww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/images/spritesheets/circle_white_36.png — 200 — 3.5 KiB — 40 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/images/spritesheets/bookmark_36.pngwww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/images/spritesheets/bookmark_36.png — 200 — 9.2 KiB — 35 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/images/spritesheets/circle_36.pngwww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/images/spritesheets/circle_36.png — 200 — 3.4 KiB — 36 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/images/spritesheets/bookmark_white_36.pngwww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/images/spritesheets/bookmark_white_36.png — 200 — 9.5 KiB — 37 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/images/waveline.svgwww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/images/waveline.svg — 200 — 740 B — 37 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/images/bpb_logo_black.svgwww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/images/bpb_logo_black.svg — 200 — 1.6 KiB — 38 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/MessinaSansWeb/MessinaSansWeb-Bold.woff2www.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/MessinaSansWeb/MessinaSansWeb-Bold.woff2 — 200 — 25.7 KiB — 44 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/MessinaSansWeb/MessinaSansWeb-Regular.woff2www.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/MessinaSansWeb/MessinaSansWeb-Regular.woff2 — 200 — 24.9 KiB — 45 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/bpb-iconfont/fonts/bpb-iconfont.woff2?ybsbfa=www.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/bpb-iconfont/fonts/bpb-iconfont.woff2?ybsbfa= — 200 — 15.7 KiB — 46 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/8439.f956b44d01d980d3a237.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/8439.f956b44d01d980d3a237.js — 200 — 716 B — 34 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/MessinaSansWeb/MessinaSansWeb-SemiBold.woff2www.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/fonts/MessinaSansWeb/MessinaSansWeb-SemiBold.woff2 — 200 — 25.2 KiB — 36 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/1114.df82f3164b74bfa255ab.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/1114.df82f3164b74bfa255ab.js — 200 — 945 B — 34 ms — h2https://www.bpb.de/themes/custom/bpbtheme/assets/js/237.1c6d29740ea1eb894b4e.jswww.bpb.de/themes/custom/bpbtheme/a... https://www.bpb.de/themes/custom/bpbtheme/assets/js/237.1c6d29740ea1eb894b4e.js — 200 — 727 B — 34 ms — h2https://www.bpb.de/themes/custom/bpbtheme/favicon.icowww.bpb.de/themes/custom/bpbtheme/f... https://www.bpb.de/themes/custom/bpbtheme/favicon.ico — 200 — 4.4 KiB — 35 ms — h2https://www.bpb.de/cache/images/3/798153_homepage_topteaser_558x836.jpg?2A37Fwww.bpb.de/cache/images/3/798153_ho... https://www.bpb.de/cache/images/3/798153_homepage_topteaser_558x836.jpg?2A37F — 200 — 102.3 KiB — 35 ms — h2https://www.bpb.de/cache/images/6/798086_teaser_3x2_600.jpg?73E45www.bpb.de/cache/images/6/798086_te... https://www.bpb.de/cache/images/6/798086_teaser_3x2_600.jpg?73E45 — 200 — 43.6 KiB — 34 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 5511ms · 613KB · €14/mo
www.bpb.de
Other
Costly
Execution 3791ms
Transfer 362 KB
Unused 63%
Monthly Cost €9/mo
Unattributable
Other
Costly
Execution 246ms
Transfer 0 KB
Monthly Cost €1/mo
www.bpb.de
Other
Optional
Execution 199ms
Transfer 1 KB
Monthly Cost €0/mo
www.bpb.de
Other
Optional
Execution 152ms
Transfer 168 KB
Monthly Cost €0/mo
www.bpb.de
Other
Optional
Execution 144ms
Transfer 48 KB
Monthly Cost €0/mo
www.bpb.de
Other
Optional
Execution 131ms
Transfer 4 KB
Monthly Cost €0/mo
www.bpb.de
Other
Optional
Execution 101ms
Transfer 10 KB
Monthly Cost €0/mo
www.bpb.de
Other
Optional
Execution 99ms
Transfer 1 KB
Monthly Cost €0/mo
www.bpb.de
Other
Optional
Execution 91ms
Transfer 1 KB
Monthly Cost €0/mo
www.bpb.de
Other
Optional
Execution 91ms
Transfer 1 KB
Monthly Cost €0/mo
www.bpb.de
Other
Optional
Execution 67ms
Transfer 1 KB
Monthly Cost €0/mo
www.bpb.de
Other
Optional
Execution 61ms
Transfer 4 KB
Monthly Cost €0/mo
www.bpb.de
Other
Optional
Execution 60ms
Transfer 1 KB
Monthly Cost €0/mo
www.bpb.de
Other
Optional
Execution 58ms
Transfer 1 KB
Monthly Cost €0/mo
www.bpb.de
Other
Optional
Execution 56ms
Transfer 4 KB
Monthly Cost €0/mo
www.bpb.de
Other
Optional
Execution 55ms
Transfer 1 KB
Monthly Cost €0/mo
www.bpb.de
Other
Optional
Execution 54ms
Transfer 1 KB
Monthly Cost €0/mo
www.bpb.de
Other
Optional
Execution 54ms
Transfer 4 KB
Monthly Cost €0/mo

These scripts may cost more than they're worth

  • www.bpb.de adds 3791ms and costs ~€9/month
  • Unattributable adds 246ms and costs ~€1/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.bpb.de takes 3791ms 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

63% of www.bpb.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

Unattributable takes 246ms 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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