Performance
· 14 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.
438 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
518 ms
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
69 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.
1.26 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.
1.39 s
Page Load Progression
FJS BundlesAction5 scripts, 528 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://page-stats.de/index.php?module=Proxy&action=getCoreJs&cb=ac28406fec4f577224d7f4209dd69e77 | 433 KB | 341 KB (79%) | ✓ | 1st |
| https://page-stats.de/index.php?module=Proxy&action=getUmdJs&chunk=2&cb=ac28406fec4f577224d7f4209dd69e77 | 106 KB | 85 KB (81%) | ✓ | 1st |
| https://page-stats.de/index.php?module=Proxy&action=getUmdJs&chunk=1&cb=ac28406fec4f577224d7f4209dd69e77 | 79 KB | 62 KB (79%) | ✓ | 1st |
| https://page-stats.de/index.php?module=Proxy&action=getUmdJs&chunk=0&cb=ac28406fec4f577224d7f4209dd69e77 | 52 KB | 41 KB (80%) | ✓ | 1st |
| https://page-stats.de/index.php?module=Proxy&action=getNonCoreJs&cb=ac28406fec4f577224d7f4209dd69e77 | 1 KB | — | ✓ | 1st |
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
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
DHTTP CachingActionno-store (uncacheable)FIX
no-store, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| no-store | — | Never cache this response |
| must-revalidate | — | Must recheck with server after expiry |
APage Weight Budget817 KB transferred, 10 requestsPASS
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
A+Third-Party ImpactNo third-party resourcesPASS
A+Text CompressionAll text resources are compressedPASS
AImage Optimization1 images, 0 KB saveablePASS
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
A+JS Execution Cost263ms total JS executionPASS
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://page-stats.de/index.php?module=Proxy&action=getCoreJs&cb=ac28406fec4f577224d7f4209dd69e77 | 146ms | 91ms | 52ms | 1st |
| https://page-stats.de/ | 116ms | 3ms | 8ms | 1st |
A+Font Loading1 fonts (17 KB)PASS
Web fonts
1
17 KB total
Render-blocking
0
of 1
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 Inventory10 resources · 817 KB · 528 KB savings availablePASS
~528.4 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 10 resources | 817.0 KiB | ||||||
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