Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
B
Image Optimization
49 images, 0 KB saveable
REVIEW
49 images, 0 KB saveable
Info::
✓
All images are well-optimized
49images408 KB
0oversized-0 KB
48legacy format
0missing dimensionsCLS risk
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW
Green Hosting
No green hosting detected
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
43 fonts (501 KB)
PASS
43 fonts (501 KB)
Info::
i
43 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
43
501 KB total
Render-blocking
0
of 43
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size42 KB
Load time86 ms
Start3.7 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size13 KB
Load time70 ms
Start3.7 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size7 KB
Load time73 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size9 KB
Load time79 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size9 KB
Load time75 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size8 KB
Load time80 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size8 KB
Load time83 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size9 KB
Load time90 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size9 KB
Load time96 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size9 KB
Load time100 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size9 KB
Load time103 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size9 KB
Load time136 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time115 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time118 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time122 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time125 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time128 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time185 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time179 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time168 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size8 KB
Load time170 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size9 KB
Load time190 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size9 KB
Load time162 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size11 KB
Load time155 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time151 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time147 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size11 KB
Load time202 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size9 KB
Load time142 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size9 KB
Load time183 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time127 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time129 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size9 KB
Load time121 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time176 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size9 KB
Load time112 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time190 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time212 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time215 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size9 KB
Load time217 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size36 KB
Load time218 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time185 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size10 KB
Load time203 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
-F6jfjtqLzI2JPCgQBnw7HF...woff2swap
Size9 KB
Load time200 ms
Start3.8 s
RiskFOUT — text flashes from fallback to web font
memvYaGs126MiZpBA-UvWbX...woff2swap
Size42 KB
Load time7 ms
Start6.0 s
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
22 hints, 0 missing preconnects
PASS
22 hints, 0 missing preconnects
Info::
✓
Page uses 22 resource hint(s)
Current Resource Hints
preconnect—
preload
+12
22
dns-prefetch—
prefetch—
22 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
176 requests over 8352ms
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-party14550ms · 2109KB · €158/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.nifty.com
www.nifty.com
Other
3616ms
9 KB
—
€39/mo
Costly
Unattributable
Unattributable
Other
1688ms
0 KB
—
€18/mo
Costly
www.nifty.com
www.nifty.com
Other
1196ms
34 KB
—
€13/mo
Costly
c.amazon-adsystem.com
c.amazon-adsystem.com
Other
721ms
91 KB
—
€8/mo
Costly
www.nifty.com
www.nifty.com
Other
684ms
59 KB
39%
€7/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
556ms
174 KB
41%
€6/mo
Costly
flux-cdn.com
flux-cdn.com
Other
527ms
154 KB
74%
€6/mo
Costly
fundingchoicesmessages.google.com
fundingchoicesmessages.google.com
Other
517ms
66 KB
—
€6/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
482ms
148 KB
40%
€5/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
472ms
151 KB
51%
€5/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
469ms
159 KB
41%
€5/mo
Costly
securepubads.g.doubleclick.net
securepubads.g.doubleclick.net
Other
457ms
188 KB
73%
€5/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
444ms
158 KB
40%
€5/mo
Costly
Facebook Pixel
connect.facebook.net
Advertising
439ms
125 KB
29%
€5/mo
Costly
fundingchoicesmessages.google.com
fundingchoicesmessages.google.com
Other
404ms
70 KB
53%
€4/mo
Costly
cse.google.com
cse.google.com
Other
290ms
4 KB
—
€3/mo
Costly
ads.pubmatic.com
ads.pubmatic.com
Other
277ms
75 KB
—
€3/mo
Costly
Facebook Pixel
connect.facebook.net
Advertising
230ms
97 KB
35%
€2/mo
Costly
www.nifty.com
www.nifty.com
Other
169ms
36 KB
—
€2/mo
Optional
www.nifty.com
www.nifty.com
Other
161ms
11 KB
—
€2/mo
Optional
securepubads.g.doubleclick.net
securepubads.g.doubleclick.net
Other
161ms
35 KB
—
€2/mo
Optional
rumcdn.geoedge.be
rumcdn.geoedge.be
Other
111ms
7 KB
—
€1/mo
Optional
secure.cdn.fastclick.net
secure.cdn.fastclick.net
Other
108ms
22 KB
—
€1/mo
Optional
www.google.com
www.google.com
Other
104ms
99 KB
49%
€1/mo
Optional
rumcdn.geoedge.be
rumcdn.geoedge.be
Other
95ms
70 KB
—
€1/mo
Optional
cse.google.com
cse.google.com
Other
68ms
44 KB
73%
€1/mo
Optional
www.nifty.com
www.nifty.com
Other
53ms
17 KB
—
€1/mo
Optional
ep2.adtrafficquality.google
ep2.adtrafficquality.google
Other
52ms
8 KB
—
€1/mo
Optional
www.nifty.com
Other
Costly
Execution3616ms
Transfer9 KB
Monthly Cost€39/mo
Unattributable
Other
Costly
Execution1688ms
Transfer0 KB
Monthly Cost€18/mo
www.nifty.com
Other
Costly
Execution1196ms
Transfer34 KB
Monthly Cost€13/mo
c.amazon-adsystem.com
Other
Costly
Execution721ms
Transfer91 KB
Monthly Cost€8/mo
www.nifty.com
Other
Costly
Execution684ms
Transfer59 KB
Unused39%
Monthly Cost€7/mo
Google Tag Manager
Tag Manager
Costly
Execution556ms
Transfer174 KB
Unused41%
Monthly Cost€6/mo
flux-cdn.com
Other
Costly
Execution527ms
Transfer154 KB
Unused74%
Monthly Cost€6/mo
fundingchoicesmessages.google.com
Other
Costly
Execution517ms
Transfer66 KB
Monthly Cost€6/mo
Google Tag Manager
Tag Manager
Costly
Execution482ms
Transfer148 KB
Unused40%
Monthly Cost€5/mo
Google Tag Manager
Tag Manager
Costly
Execution472ms
Transfer151 KB
Unused51%
Monthly Cost€5/mo
Google Tag Manager
Tag Manager
Costly
Execution469ms
Transfer159 KB
Unused41%
Monthly Cost€5/mo
securepubads.g.doubleclick.net
Other
Costly
Execution457ms
Transfer188 KB
Unused73%
Monthly Cost€5/mo
Google Tag Manager
Tag Manager
Costly
Execution444ms
Transfer158 KB
Unused40%
Monthly Cost€5/mo
Facebook Pixel
Advertising
Costly
Execution439ms
Transfer125 KB
Unused29%
Monthly Cost€5/mo
fundingchoicesmessages.google.com
Other
Costly
Execution404ms
Transfer70 KB
Unused53%
Monthly Cost€4/mo
cse.google.com
Other
Costly
Execution290ms
Transfer4 KB
Monthly Cost€3/mo
ads.pubmatic.com
Other
Costly
Execution277ms
Transfer75 KB
Monthly Cost€3/mo
Facebook Pixel
Advertising
Costly
Execution230ms
Transfer97 KB
Unused35%
Monthly Cost€2/mo
www.nifty.com
Other
Optional
Execution169ms
Transfer36 KB
Monthly Cost€2/mo
www.nifty.com
Other
Optional
Execution161ms
Transfer11 KB
Monthly Cost€2/mo
securepubads.g.doubleclick.net
Other
Optional
Execution161ms
Transfer35 KB
Monthly Cost€2/mo
rumcdn.geoedge.be
Other
Optional
Execution111ms
Transfer7 KB
Monthly Cost€1/mo
secure.cdn.fastclick.net
Other
Optional
Execution108ms
Transfer22 KB
Monthly Cost€1/mo
www.google.com
Other
Optional
Execution104ms
Transfer99 KB
Unused49%
Monthly Cost€1/mo
rumcdn.geoedge.be
Other
Optional
Execution95ms
Transfer70 KB
Monthly Cost€1/mo
cse.google.com
Other
Optional
Execution68ms
Transfer44 KB
Unused73%
Monthly Cost€1/mo
www.nifty.com
Other
Optional
Execution53ms
Transfer17 KB
Monthly Cost€1/mo
ep2.adtrafficquality.google
Other
Optional
Execution52ms
Transfer8 KB
Monthly Cost€1/mo
These scripts may cost more than they're worth
www.nifty.com adds 3616ms and costs ~€39/month
Unattributable adds 1688ms and costs ~€18/month
www.nifty.com adds 1196ms and costs ~€13/month
c.amazon-adsystem.com adds 721ms and costs ~€8/month
www.nifty.com adds 684ms and costs ~€7/month
Google Tag Manager adds 556ms and costs ~€6/month
flux-cdn.com adds 527ms and costs ~€6/month
fundingchoicesmessages.google.com adds 517ms and costs ~€6/month
Google Tag Manager adds 482ms and costs ~€5/month
Google Tag Manager adds 472ms and costs ~€5/month
Google Tag Manager adds 469ms and costs ~€5/month
securepubads.g.doubleclick.net adds 457ms and costs ~€5/month
Google Tag Manager adds 444ms and costs ~€5/month
Facebook Pixel adds 439ms and costs ~€5/month
fundingchoicesmessages.google.com adds 404ms and costs ~€4/month
cse.google.com adds 290ms and costs ~€3/month
ads.pubmatic.com adds 277ms and costs ~€3/month
Facebook Pixel adds 230ms and costs ~€2/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.nifty.com takes 3616ms 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 1688ms 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.nifty.com takes 1196ms 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
c.amazon-adsystem.com takes 721ms 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.nifty.com takes 684ms 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 556ms 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
flux-cdn.com takes 527ms 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
74% of flux-cdn.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.
Source: web.dev
fundingchoicesmessages.google.com takes 517ms 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 482ms 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 472ms 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
51% of Google Tag Manager'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.
Source: web.dev
Google Tag Manager takes 469ms 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
securepubads.g.doubleclick.net takes 457ms 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
73% of securepubads.g.doubleclick.net'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.
Source: web.dev
Google Tag Manager takes 444ms 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
Facebook Pixel takes 439ms 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
fundingchoicesmessages.google.com takes 404ms 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
53% of fundingchoicesmessages.google.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.
Source: web.dev
cse.google.com takes 290ms 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
ads.pubmatic.com takes 277ms 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
Facebook Pixel takes 230ms 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
73% of cse.google.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.