Performance
· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
718 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.12 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
50 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.016
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
806 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
1.13 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 sDThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization18 images, 0 KB saveableREVIEW
BJS Execution Cost574ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.bundesgesundheitsministerium.de// | 277ms | 4ms | 4ms | 3rd |
| https://www.bundesgesundheitsministerium.de/typo3conf/ext/fr_acronym/Resources/Public/JavaScript/frAcronym.js?1776864888 | 153ms | 144ms | 0ms | 3rd |
| Unattributable | 77ms | 2ms | 0ms | 3rd |
| https://www.bundesgesundheitsministerium.de/assets/js/main.0bfc893059e856bc9f79.js | 68ms | 37ms | 7ms | 3rd |
BJS Bundles4 scripts, 53 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.bundesgesundheitsministerium.de/assets/js/main.0bfc893059e856bc9f79.js | 86 KB | 53 KB (62%) | ✓ | 3rd |
| https://www.bundesgesundheitsministerium.de/typo3temp/assets/compressed/merged-5d35c95f6afa51b1834d16f0a6a82b4f-033a6a3f50a4c922b0188b25be030616.js?1776864914 | 1 KB | — | ✓ | 3rd |
| https://www.bundesgesundheitsministerium.de/assets/js/dynamic-loader.b62c0e0e8bac5993f11b.js | 3 KB | — | ✓ | 3rd |
| https://www.bundesgesundheitsministerium.de/typo3conf/ext/fr_acronym/Resources/Public/JavaScript/frAcronym.js?1776864888 | 2 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
APage Weight Budget786 KB transferred, 33 requestsPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading5 fonts (109 KB)PASS
Web fonts
5
109 KB total
Render-blocking
0
of 5
Dominant font-display
swap
Most common across fonts
Font loading timeline
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 CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
APage Weight Inventory33 resources · 786 KB · 53 KB savings availablePASS
~52.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 33 resources | 786.4 KiB | ||||||
Network Waterfall33 requests over 638msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.bundesgesundheitsministerium.de www.bundesgesundheitsministerium.de | Other | 277ms | 69 KB | — | €3/mo | Costly |
www.bundesgesundheitsministerium.de www.bundesgesundheitsministerium.de | Other | 153ms | 2 KB | — | €2/mo | Optional |
Unattributable Unattributable | Other | 77ms | 0 KB | — | €1/mo | Optional |
www.bundesgesundheitsministerium.de www.bundesgesundheitsministerium.de | Other | 68ms | 86 KB | 62% | €1/mo | Optional |
These scripts may cost more than they're worth
- www.bundesgesundheitsministerium.de adds 277ms and costs ~€3/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
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.bundesgesundheitsministerium.de takes 277ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
62% of www.bundesgesundheitsministerium.de's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev