Consider code splitting or tree shaking to reduce unused code.
Why this matters
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.
Why this matters
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.
Why this matters
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.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
✓
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
6 fonts (156 KB)
PASS
6 fonts (156 KB)
Info::
i
6 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
6
156 KB total
Render-blocking
0
of 6
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
overpass-semibold.woff2woff2swap
Size33 KB
Load time44 ms
Start149 ms
RiskFOUT — text flashes from fallback to web font
opensans-regular.woff2woff2swap
Size19 KB
Load time173 ms
Start222 ms
RiskFOUT — text flashes from fallback to web font
opensans-bold.woff2woff2swap
Size18 KB
Load time390 ms
Start284 ms
RiskFOUT — text flashes from fallback to web font
overpass-regular.woff2woff2swap
Size35 KB
Load time444 ms
Start284 ms
RiskFOUT — text flashes from fallback to web font
overpass-bold.woff2woff2swap
Size34 KB
Load time462 ms
Start284 ms
RiskFOUT — text flashes from fallback to web font
opensans-semibold.woff2woff2swap
Size18 KB
Load time412 ms
Start285 ms
RiskFOUT — text flashes from fallback to web font
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 Caching
All resources properly cached
PASS
All resources properly cached
Info::
✓
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
✓
No render-blocking resources detected
A+
Resource Hints
6 hints, 0 missing preconnects
PASS
6 hints, 0 missing preconnects
Info::
✓
Page uses 6 resource hint(s)
Current Resource Hints
preconnect
3
preload
3
dns-prefetch—
prefetch—
6 resource hints configured
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
✓
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: IONOS SE
Network Waterfall
82 requests over 1786ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100%of JavaScript execution is third-party
First-party Third-party1822ms · 173KB · €9/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.ionos.de
www.ionos.de
Other
743ms
89 KB
—
€3/mo
Costly
Unattributable
Unattributable
Other
612ms
0 KB
—
€3/mo
Costly
www.ionos.de
www.ionos.de
Other
205ms
5 KB
—
€1/mo
Costly
www.ionos.de
www.ionos.de
Other
132ms
4 KB
—
€1/mo
Optional
6zqtim.ionos.de
6zqtim.ionos.de
Other
129ms
75 KB
39%
€1/mo
Optional
www.ionos.de
Other
Costly
Execution743ms
Transfer89 KB
Monthly Cost€3/mo
Unattributable
Other
Costly
Execution612ms
Transfer0 KB
Monthly Cost€3/mo
www.ionos.de
Other
Costly
Execution205ms
Transfer5 KB
Monthly Cost€1/mo
www.ionos.de
Other
Optional
Execution132ms
Transfer4 KB
Monthly Cost€1/mo
6zqtim.ionos.de
Other
Optional
Execution129ms
Transfer75 KB
Unused39%
Monthly Cost€1/mo
These scripts may cost more than they're worth
www.ionos.de adds 743ms and costs ~€3/month
Unattributable adds 612ms and costs ~€3/month
www.ionos.de adds 205ms and costs ~€1/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
Why this matters
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.ionos.de takes 743ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Unattributable takes 612ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
www.ionos.de takes 205ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
512 ms
1.0 s
2.0 s
2.6 s
3.1 s
3.6 s
4.1 s