Performance
· 23 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.
335 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.79 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
3 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.001
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
948 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.
2.79 s
Page Load Progression
FPage Weight BudgetAction2.7 MB transferred, 36 requestsFIX
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.
Source: web.dev
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization7 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
BJS Execution Cost640ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://bokorasch-tech.de/ | 366ms | 7ms | 1ms | 1st |
| https://embed.tawk.to/_s/v4/app/6ae3054f360/js/twk-main.js | 107ms | 89ms | 0ms | 3rd |
| Unattributable | 91ms | 26ms | 0ms | 1st |
| https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.fa.fdOTlePY0SE.O/am=AACAAQ/d=1/ed=1/rs=AN8SPfqd_RMmfl71aqzTzLgqdyrAPWpHDA/m=el_main | 76ms | 46ms | 7ms | 3rd |
BJS Bundles13 scripts, 149 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.fa.fdOTlePY0SE.O/am=AACAAQ/d=1/ed=1/rs=AN8SPfqd_RMmfl71aqzTzLgqdyrAPWpHDA/m=el_main | 110 KB | 66 KB (60%) | ✓ | 3rd |
| https://embed.tawk.to/_s/v4/app/6ae3054f360/js/twk-main.js | 119 KB | 47 KB (39%) | ✓ | 3rd |
| https://embed.tawk.to/_s/v4/app/6ae3054f360/js/twk-messenger-components.es-CPwW-3VV.js | 75 KB | 36 KB (48%) | ✓ | 3rd |
| https://embed.tawk.to/_s/v4/app/6ae3054f360/js/twk-MinWidget-8GobQp4t.js | 5 KB | — | ✓ | 3rd |
| https://embed.tawk.to/6a79a6f9ec2fc81d4379f80c/1jvlj8g02 | 1 KB | — | ✓ | 3rd |
| blob:https://bokorasch-tech.de/6ee621bc-480a-484d-85a8-85c9f90ad762 | -0 KB | — | ✓ | 3rd |
| https://translate.google.com/translate_a/element.js?cb=googleTranslateElementInit | 1 KB | — | ✓ | 3rd |
| https://embed.tawk.to/_s/v4/app/6ae3054f360/js/twk-BubbleWidget-DWZHmyxi.js | 4 KB | — | ✓ | 3rd |
| https://embed.tawk.to/_s/v4/app/6ae3054f360/js/twk-MessagePreview-C0T-I2Hs.js | 5 KB | — | ✓ | 3rd |
| https://embed.tawk.to/_s/v4/app/6ae3054f360/js/twk-BrandingWidget-WZFGTor7.js | 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
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
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
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CPage Weight InventoryAction36 resources · 2.7 MB · 149 KB savings availableREVIEW
~148.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 36 resources | 2.7 MiB | ||||||
A+Third-Party Impact14% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font LoadingNo web fonts (system fonts)PASS
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Hetzner Online GmbH
Asset CompressionNo text asset hosts to measureINFO
Network Waterfall36 requests over 1802msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Tawk.to embed.tawk.to | Chat | 107ms | 119 KB | 39% | €1/mo | Optional |
translate.googleapis.com translate.googleapis.com | Other | 76ms | 110 KB | 60% | €1/mo | Optional |
60% of translate.googleapis.com'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
Image Optimization12 images, 16314 KB total, 1898 KB wastedINFO
Image Optimization Audit
Total Images
12
Total Size
16314 KB
Oversized
2
Wasted
1898 KB