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.
C
Image Optimization
Action
34 images, 0 KB saveable
REVIEW
34 images, 0 KB saveable
Warning::
!
https://images.plurk.com/mx_wPv1eVgJ5pOo6SU6lbOq7.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://images.plurk.com/mx_5tk4NLFr6ajgt9MsVcv5Uc... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://avatars.plurk.com/10003169-medium44.gif is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://avatars.plurk.com/16724229-medium89129339.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://i.ytimg.com/vi/waOW8P6oJzk/default.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://avatars.plurk.com/99999-medium4626258.gif is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://avatars.plurk.com/13789849-medium36691202.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://images.plurk.com/mx_1SCNaTHHXndGCllxHhiqS3... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://s.plurk.com/plurktop/081a969c320357512b53.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://images.plurk.com/mx_7JzLD1z9woBVmrVX7qBCn2... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://images.plurk.com/mx_1gZhnBa12cPEkoc3nTRSVr... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://images.plurk.com/mx_3THC7BZOzreu1OKKjd5pjc... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://imgs.plurk.com/QHO/1oq/qdOsbi8icYcDjznOhou... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://images.plurk.com/mx_UaL2rlYPuy7KldHdFv9dV.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
34images1.3 MB
0oversized-0 KB
34legacy format
14missing dimensionsCLS risk
Set explicit width and height to prevent CLS.
Why this matters
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.
Why this matters
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.
Why this matters
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.
Why this matters
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.
Why this matters
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.
Why this matters
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.
Why this matters
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.
Why this matters
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.
Why this matters
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.
Why this matters
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.
Why this matters
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.
Why this matters
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.
Why this matters
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.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
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
2 fonts (63 KB)
PASS
2 fonts (63 KB)
Info::
i
2 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
2
63 KB total
Render-blocking
0
of 2
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
c0679c24afdce236d7fa.woff2woff2swap
Size21 KB
Load time18 ms
Start936 ms
RiskFOUT — text flashes from fallback to web font
memvYaGs126MiZpBA-UvWbX...woff2swap
Size42 KB
Load time16 ms
Start2.7 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
No optimization needed
PASS
No optimization needed
Info::
✓
No resource hint issues
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall
108 requests over 3808ms
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-party2060ms · 816KB · €22/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
cdnjs
cdnjs.cloudflare.com
CDN
435ms
0 KB
—
€5/mo
Costly
Unattributable
Unattributable
Other
348ms
0 KB
—
€4/mo
Costly
www.plurk.com
www.plurk.com
Other
252ms
15 KB
—
€3/mo
Costly
anymind360.com
anymind360.com
Other
230ms
124 KB
49%
€2/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
137ms
160 KB
40%
€1/mo
Optional
fundingchoicesmessages.google.com
fundingchoicesmessages.google.com
Other
126ms
67 KB
—
€1/mo
Optional
securepubads.g.doubleclick.net
securepubads.g.doubleclick.net
Other
117ms
188 KB
69%
€1/mo
Optional
c.amazon-adsystem.com
c.amazon-adsystem.com
Other
104ms
91 KB
58%
€1/mo
Optional
s.plurk.com
s.plurk.com
Other
97ms
89 KB
72%
€1/mo
Optional
fundingchoicesmessages.google.com
fundingchoicesmessages.google.com
Other
94ms
70 KB
53%
€1/mo
Optional
s.plurk.com
s.plurk.com
Other
67ms
11 KB
—
€1/mo
Optional
securepubads.g.doubleclick.net
securepubads.g.doubleclick.net
Other
53ms
0 KB
70%
€1/mo
Optional
cdnjs
CDN
Costly
Execution435ms
Transfer0 KB
Monthly Cost€5/mo
Unattributable
Other
Costly
Execution348ms
Transfer0 KB
Monthly Cost€4/mo
www.plurk.com
Other
Costly
Execution252ms
Transfer15 KB
Monthly Cost€3/mo
anymind360.com
Other
Costly
Execution230ms
Transfer124 KB
Unused49%
Monthly Cost€2/mo
Google Tag Manager
Tag Manager
Optional
Execution137ms
Transfer160 KB
Unused40%
Monthly Cost€1/mo
fundingchoicesmessages.google.com
Other
Optional
Execution126ms
Transfer67 KB
Monthly Cost€1/mo
securepubads.g.doubleclick.net
Other
Optional
Execution117ms
Transfer188 KB
Unused69%
Monthly Cost€1/mo
c.amazon-adsystem.com
Other
Optional
Execution104ms
Transfer91 KB
Unused58%
Monthly Cost€1/mo
s.plurk.com
Other
Optional
Execution97ms
Transfer89 KB
Unused72%
Monthly Cost€1/mo
fundingchoicesmessages.google.com
Other
Optional
Execution94ms
Transfer70 KB
Unused53%
Monthly Cost€1/mo
s.plurk.com
Other
Optional
Execution67ms
Transfer11 KB
Monthly Cost€1/mo
securepubads.g.doubleclick.net
Other
Optional
Execution53ms
Transfer0 KB
Unused70%
Monthly Cost€1/mo
These scripts may cost more than they're worth
cdnjs adds 435ms and costs ~€5/month
Unattributable adds 348ms and costs ~€4/month
www.plurk.com adds 252ms and costs ~€3/month
anymind360.com 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
cdnjs takes 435ms 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 348ms 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.plurk.com takes 252ms 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
anymind360.com 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
69% 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
58% of c.amazon-adsystem.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
72% of s.plurk.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
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
70% 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.