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.
1.00 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.48 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
6 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.
1.00 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.
1.61 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
DPage Weight InventoryAction67 resources · 2.0 MB · 122 KB savings availableFIX
~121.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 67 resources | 2.0 MiB | ||||||
CPage Weight BudgetAction2.0 MB transferred, 67 requestsREVIEW
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
CImage OptimizationAction40 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
BJS Execution Cost581ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.auswaertiges-amt.de/.enodia/challenge?redirect=%2F | 250ms | 239ms | 0ms | 3rd |
| https://www.auswaertiges-amt.de/resource/themes/aa/js/main-238-127.js | 146ms | 79ms | 32ms | 3rd |
| https://www.auswaertiges-amt.de/?enodia=eyJleHAiOjE3NzY4MTg2MzUsImNvbnRlbnQiOnRydWUsImF1ZCI6ImF1dGgiLCJIb3N0Ijoid3d3LmF1c3dhZXJ0aWdlcy1hbXQuZGUiLCJTb3VyY2VJUCI6IjE0MS4yMjcuMTg4LjEyMyIsIkNvbmZpZ0lEIjoiOGRhZGNlMTI1ZmQyYzM5MzJiOTQzYjUyZTlkMmNkNjUwNTc1NGUxNjIyMTJhMmNlMWJiNWFmMTVjMGQ0YmJmZSJ9._0uUg5mgwzQf7h_UGNt1ac5AUeUqId5Jk79AUs1QQn4= | 111ms | 18ms | 1ms | 3rd |
| Unattributable | 74ms | 1ms | 0ms | 3rd |
BJS Bundles5 scripts, 122 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.auswaertiges-amt.de/resource/themes/aa/js/main-238-127.js | 281 KB | 122 KB (44%) | ✓ | 3rd |
| https://www.auswaertiges-amt.de/.enodia/static/sha256.js | 5 KB | — | ✓ | 3rd |
| https://cdn.jsdelivr.net/npm/@friendlycaptcha/sdk@0.1.31/site.min.js | 11 KB | — | ✓ | 3rd |
| https://www.auswaertiges-amt.de/resource/themes/aa/js/commons-2761206-1.js | 3 KB | — | ✓ | 3rd |
| https://piwik.auswaertiges-amt.de/.enodia/challenge?redirect=%2Fmatomo.js | 0 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
BHTTP Cachingno-cacheREVIEW
no-cache
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading6 fonts (265 KB)PASS
Web fonts
6
265 KB total
Render-blocking
0
of 6
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
Network Waterfall67 requests over 1186msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.auswaertiges-amt.de www.auswaertiges-amt.de | Other | 250ms | 6 KB | — | €3/mo | Costly |
www.auswaertiges-amt.de www.auswaertiges-amt.de | Other | 146ms | 281 KB | 44% | €2/mo | Optional |
www.auswaertiges-amt.de www.auswaertiges-amt.de | Other | 111ms | 24 KB | — | €1/mo | Optional |
Unattributable Unattributable | Other | 74ms | 0 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- www.auswaertiges-amt.de adds 250ms 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.auswaertiges-amt.de takes 250ms 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