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.
1.40 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.31 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
97 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.044
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.65 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.
2.31 s
Page Load Progression
FPage Weight BudgetAction2.9 MB transferred, 153 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
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
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
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DPage Weight InventoryAction153 resources · 2.9 MB · 128 KB savings availableFIX
~127.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 153 resources | 2.9 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction48 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
BJS Execution Cost964ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.diepresse.com/assets_v2/js/app.DkPjJmvP.js | 453ms | 371ms | 1ms | 3rd |
| https://www.diepresse.com/ | 193ms | 20ms | 2ms | 3rd |
| Unattributable | 159ms | 59ms | 0ms | 3rd |
| https://privacy.diepresse.com/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/ui-web-de-AT-web.22ecd6bfac93de604efec0b75b2c796ee1675f92.js | 92ms | 37ms | 11ms | 3rd |
| https://www.diepresse.com/assets_v2/js/swiper-bundle.DwyMwr7b.js | 68ms | 6ms | 0ms | 3rd |
BJS Bundles66 scripts, 128 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.diepresse.com/assets_v2/js/app.DkPjJmvP.js | 222 KB | 85 KB (38%) | ✓ | 3rd |
| https://privacy.diepresse.com/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/sdk.22ecd6bfac93de604efec0b75b2c796ee1675f92.js | 103 KB | 43 KB (42%) | ✓ | 3rd |
| https://data-50d39a5d3f.diepresse.com/iomm/latest/manager/base/es6/bundle.js | 17 KB | — | ✓ | 3rd |
| https://data-50d39a5d3f.diepresse.com/iomm/latest/bootstrap/loader.js | 0 KB | — | ✓ | 3rd |
| https://ced.sascdn.com/tag/1003/smart.js | 27 KB | — | ✓ | 3rd |
| https://privacy.diepresse.com/f99e3f18-1a59-4728-b6e7-f56c99678ed5/loader.js?target_type=notice&target=wwcb4eBz | 42 KB | — | ✓ | 3rd |
| https://r.sascdn.com/handlers/config/config.ashx?nwid=1003&cptype=videoconfig | 0 KB | — | ✓ | 3rd |
| https://ced-ns.sascdn.com/diff/video/current/libs/js/controller.js | 144 KB | — | ✓ | 3rd |
| https://data-50d39a5d3f.diepresse.com/iomb/latest/sensor/manager/base/es6/bundle.js | 9 KB | — | ✓ | 3rd |
| https://privacy.diepresse.com/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/src_sdk_core_modules_integrations_sdk-integrations_providers_gcm_gcm_js.22ecd6bfac93de604efec0b75b2c796ee1675f92.js | 1 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
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (220 KB)PASS
Web fonts
4
220 KB total
Render-blocking
0
of 4
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 Waterfall153 requests over 2021msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.diepresse.com www.diepresse.com | Other | 453ms | 222 KB | 38% | €5/mo | Costly |
www.diepresse.com www.diepresse.com | Other | 193ms | 85 KB | — | €2/mo | Optional |
Unattributable Unattributable | Other | 159ms | 0 KB | — | €2/mo | Optional |
privacy.diepresse.com privacy.diepresse.com | Other | 92ms | 56 KB | — | €1/mo | Optional |
www.diepresse.com www.diepresse.com | Other | 68ms | 20 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- www.diepresse.com adds 453ms and costs ~€5/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.diepresse.com takes 453ms 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