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
B
HTTP Caching
no-cache, must-revalidate
REVIEW
no-cache, must-revalidate
Info::
✓
Cache-Control header is set
Got: no-cache, must-revalidate
Info::
i
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
no-cache, must-revalidate
Directive
Value
Meaning
no-cache
—
Cache but always revalidate first
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+
Font Loading
3 fonts (80 KB)
PASS
3 fonts (80 KB)
Info::
i
3 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
3
80 KB total
Render-blocking
0
of 3
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
4UasrENHsxJlGDuGo1OIlJf...woff2swap
Size35 KB
Load time11 ms
Start206 ms
RiskFOUT — text flashes from fallback to web font
5aUp9-KzpRiLCAt4Unrc-xI...woff2swap
Size23 KB
Load time9 ms
Start207 ms
RiskFOUT — text flashes from fallback to web font
5aUu9-KzpRiLCAt4Unrc-xI...woff2swap
Size22 KB
Load time10 ms
Start207 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
4 hints, 0 missing preconnects
PASS
4 hints, 0 missing preconnects
Info::
✓
Page uses 4 resource hint(s)
Current Resource Hints
preconnect
3
preload
1
dns-prefetch—
prefetch—
4 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: Google Cloud
Network Waterfall
59 requests over 1677ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
84%of JavaScript execution is third-party
First-party Third-party5348ms · 494KB · $71/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
Unattributable
Unattributable
Other
3020ms
0 KB
—
$40/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
707ms
147 KB
41%
$9/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
696ms
146 KB
36%
$9/mo
Costly
apis.google.com
apis.google.com
Other
403ms
108 KB
66%
$5/mo
Costly
www.gstatic.com
www.gstatic.com
Other
184ms
12 KB
—
$2/mo
Optional
apis.google.com
apis.google.com
Other
92ms
6 KB
—
$1/mo
Optional
www.gstatic.com
www.gstatic.com
Other
72ms
5 KB
—
$1/mo
Optional
www.gstatic.com
www.gstatic.com
Other
66ms
3 KB
—
$1/mo
Optional
www.gstatic.com
www.gstatic.com
Other
57ms
39 KB
62%
$1/mo
Optional
www.gstatic.com
www.gstatic.com
Other
50ms
27 KB
—
$1/mo
Optional
Unattributable
Other
Costly
Execution3020ms
Transfer0 KB
Monthly Cost$40/mo
Google Tag Manager
Tag Manager
Costly
Execution707ms
Transfer147 KB
Unused41%
Monthly Cost$9/mo
Google Tag Manager
Tag Manager
Costly
Execution696ms
Transfer146 KB
Unused36%
Monthly Cost$9/mo
apis.google.com
Other
Costly
Execution403ms
Transfer108 KB
Unused66%
Monthly Cost$5/mo
www.gstatic.com
Other
Optional
Execution184ms
Transfer12 KB
Monthly Cost$2/mo
apis.google.com
Other
Optional
Execution92ms
Transfer6 KB
Monthly Cost$1/mo
www.gstatic.com
Other
Optional
Execution72ms
Transfer5 KB
Monthly Cost$1/mo
www.gstatic.com
Other
Optional
Execution66ms
Transfer3 KB
Monthly Cost$1/mo
www.gstatic.com
Other
Optional
Execution57ms
Transfer39 KB
Unused62%
Monthly Cost$1/mo
www.gstatic.com
Other
Optional
Execution50ms
Transfer27 KB
Monthly Cost$1/mo
These scripts may cost more than they're worth
Unattributable adds 3020ms and costs ~$40/month
Google Tag Manager adds 707ms and costs ~$9/month
Google Tag Manager adds 696ms and costs ~$9/month
apis.google.com adds 403ms and costs ~$5/month
84% 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
Unattributable takes 3020ms 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 707ms 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 696ms 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
apis.google.com takes 403ms 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
66% of apis.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
62% of www.gstatic.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.