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
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
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW
Green Hosting
No green hosting detected
B
HTTP Caching
public, max-age=0, must-revalidate
REVIEW
public, max-age=0, must-revalidate
Info::
✓
Cache-Control header is set
Got: public, max-age=0, must-revalidate
Info::
i
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
public, max-age=0, must-revalidate
Directive
Value
Meaning
public
—
Any cache may store this response
max-age
0
Cache for 0 seconds
must-revalidate
—
Must recheck with server after expiry
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+
Image Optimization
12 images, 0 KB saveable
PASS
12 images, 0 KB saveable
Info::
✓
All images are well-optimized
12images854 KB
0oversized-0 KB
0legacy format
0missing dimensionsCLS risk
A+
Font Loading
3 fonts (45 KB)
PASS
3 fonts (45 KB)
Info::
i
3 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
3
45 KB total
Render-blocking
0
of 3
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
open-sans-v34-latin-700...woff2swap
Size16 KB
Load time22 ms
Start172 ms
RiskFOUT — text flashes from fallback to web font
oswald-v53-latin-500.woff2woff2swap
Size13 KB
Load time31 ms
Start172 ms
RiskFOUT — text flashes from fallback to web font
open-sans-v34-latin-reg...woff2swap
Size16 KB
Load time19 ms
Start172 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
1 hints, 0 missing preconnects
PASS
1 hints, 0 missing preconnects
Info::
✓
Page uses 1 resource hint(s)
Current Resource Hints
preconnect—
preload
1
dns-prefetch—
prefetch—
1 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
Network Waterfall
50 requests over 1015ms
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-party3489ms · 711KB · €38/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.transparency.org
www.transparency.org
Other
608ms
60 KB
—
€7/mo
Costly
Unattributable
Unattributable
Other
582ms
0 KB
—
€6/mo
Costly
consent.cookiebot.com
consent.cookiebot.com
Other
533ms
113 KB
23%
€6/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
387ms
172 KB
39%
€4/mo
Costly
www.transparency.org
www.transparency.org
Other
386ms
0 KB
—
€4/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
332ms
160 KB
42%
€4/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
255ms
144 KB
46%
€3/mo
Costly
consent.cookiebot.com
consent.cookiebot.com
Other
184ms
36 KB
64%
€2/mo
Optional
Plausible Analytics
plausible.io
Analytics
111ms
2 KB
—
€1/mo
Optional
unpkg
unpkg.com
CDN
63ms
13 KB
—
€1/mo
Optional
static.cloudflareinsights.com
static.cloudflareinsights.com
Other
50ms
11 KB
—
€1/mo
Optional
www.transparency.org
Other
Costly
Execution608ms
Transfer60 KB
Monthly Cost€7/mo
Unattributable
Other
Costly
Execution582ms
Transfer0 KB
Monthly Cost€6/mo
consent.cookiebot.com
Other
Costly
Execution533ms
Transfer113 KB
Unused23%
Monthly Cost€6/mo
Google Tag Manager
Tag Manager
Costly
Execution387ms
Transfer172 KB
Unused39%
Monthly Cost€4/mo
www.transparency.org
Other
Costly
Execution386ms
Transfer0 KB
Monthly Cost€4/mo
Google Tag Manager
Tag Manager
Costly
Execution332ms
Transfer160 KB
Unused42%
Monthly Cost€4/mo
Google Tag Manager
Tag Manager
Costly
Execution255ms
Transfer144 KB
Unused46%
Monthly Cost€3/mo
consent.cookiebot.com
Other
Optional
Execution184ms
Transfer36 KB
Unused64%
Monthly Cost€2/mo
Plausible Analytics
Analytics
Optional
Execution111ms
Transfer2 KB
Monthly Cost€1/mo
unpkg
CDN
Optional
Execution63ms
Transfer13 KB
Monthly Cost€1/mo
static.cloudflareinsights.com
Other
Optional
Execution50ms
Transfer11 KB
Monthly Cost€1/mo
These scripts may cost more than they're worth
www.transparency.org adds 608ms and costs ~€7/month
Unattributable adds 582ms and costs ~€6/month
consent.cookiebot.com adds 533ms and costs ~€6/month
Google Tag Manager adds 387ms and costs ~€4/month
www.transparency.org adds 386ms and costs ~€4/month
Google Tag Manager adds 332ms and costs ~€4/month
Google Tag Manager adds 255ms and costs ~€3/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.transparency.org takes 608ms 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 582ms 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
consent.cookiebot.com takes 533ms 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
Google Tag Manager takes 387ms 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.transparency.org takes 386ms 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
Google Tag Manager takes 332ms 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
Google Tag Manager takes 255ms 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
64% of consent.cookiebot.com's code is unused. The script may be loading features you don't use.
Why this matters
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.