Intentional for dynamic content, but increases server load for every page view.
Got: no-store
Info::
i
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
no-store
Directive
Value
Meaning
no-store
—
Never cache this response
B
Image Optimization
8 images, 0 KB saveable
REVIEW
8 images, 0 KB saveable
Info::
✓
All images are well-optimized
8images5 KB
0oversized-0 KB
5legacy 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
2 fonts (277 KB)
PASS
2 fonts (277 KB)
Info::
i
2 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
2
277 KB total
Render-blocking
0
of 2
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
cc27851ad-CFxw3nG7.woff2woff2swap
Size116 KB
Load time100 ms
Start155 ms
RiskFOUT — text flashes from fallback to web font
Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
c66fc489e-C-BHYa_K.woff2woff2swap
Size162 KB
Load time120 ms
Start155 ms
RiskFOUT — text flashes from fallback to web font
Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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)
Fixing the unchecked items could save ~139 KB and ~278 ms
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
2
preload
2
dns-prefetch
1
prefetch
1
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
Network Waterfall
81 requests over 2619ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
88%of JavaScript execution is third-party
First-party Third-party5341ms · 3344KB · $100/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
assets-proxy.anthropic.com
assets-proxy.anthropic.com
Other
1659ms
567 KB
39%
$31/mo
Costly
Unattributable
Unattributable
Other
1623ms
0 KB
—
$30/mo
Costly
assets-proxy.anthropic.com
assets-proxy.anthropic.com
Other
877ms
2162 KB
84%
$16/mo
Costly
js.intercomcdn.com
js.intercomcdn.com
Other
465ms
144 KB
64%
$9/mo
Costly
a-cdn.claude.ai
a-cdn.claude.ai
Other
210ms
103 KB
59%
$4/mo
Costly
accounts.google.com
accounts.google.com
Other
153ms
96 KB
75%
$3/mo
Optional
js.intercomcdn.com
js.intercomcdn.com
Other
81ms
193 KB
71%
$2/mo
Optional
assets-proxy.anthropic.com
assets-proxy.anthropic.com
Other
76ms
66 KB
—
$1/mo
Optional
a-cdn.anthropic.com
a-cdn.anthropic.com
Other
74ms
9 KB
—
$1/mo
Optional
Intercom Widget
widget.intercom.io
Chat
69ms
4 KB
—
$1/mo
Optional
s-cdn.anthropic.com
s-cdn.anthropic.com
Other
54ms
0 KB
—
$1/mo
Optional
assets-proxy.anthropic.com
Other
Costly
Execution1659ms
Transfer567 KB
Unused39%
Monthly Cost$31/mo
Unattributable
Other
Costly
Execution1623ms
Transfer0 KB
Monthly Cost$30/mo
assets-proxy.anthropic.com
Other
Costly
Execution877ms
Transfer2162 KB
Unused84%
Monthly Cost$16/mo
js.intercomcdn.com
Other
Costly
Execution465ms
Transfer144 KB
Unused64%
Monthly Cost$9/mo
a-cdn.claude.ai
Other
Costly
Execution210ms
Transfer103 KB
Unused59%
Monthly Cost$4/mo
accounts.google.com
Other
Optional
Execution153ms
Transfer96 KB
Unused75%
Monthly Cost$3/mo
js.intercomcdn.com
Other
Optional
Execution81ms
Transfer193 KB
Unused71%
Monthly Cost$2/mo
assets-proxy.anthropic.com
Other
Optional
Execution76ms
Transfer66 KB
Monthly Cost$1/mo
a-cdn.anthropic.com
Other
Optional
Execution74ms
Transfer9 KB
Monthly Cost$1/mo
Intercom Widget
Chat
Optional
Execution69ms
Transfer4 KB
Monthly Cost$1/mo
s-cdn.anthropic.com
Other
Optional
Execution54ms
Transfer0 KB
Monthly Cost$1/mo
These scripts may cost more than they're worth
assets-proxy.anthropic.com adds 1659ms and costs ~$31/month
Unattributable adds 1623ms and costs ~$30/month
assets-proxy.anthropic.com adds 877ms and costs ~$16/month
js.intercomcdn.com adds 465ms and costs ~$9/month
a-cdn.claude.ai adds 210ms and costs ~$4/month
88% 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
assets-proxy.anthropic.com takes 1659ms 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 1623ms 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
assets-proxy.anthropic.com takes 877ms 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
84% of assets-proxy.anthropic.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
js.intercomcdn.com takes 465ms 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 js.intercomcdn.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
a-cdn.claude.ai takes 210ms 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
59% of a-cdn.claude.ai'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
75% of accounts.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
71% of js.intercomcdn.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.