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
7 fonts (68 KB)
PASS
7 fonts (68 KB)
Info::
i
7 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
7
68 KB total
Render-blocking
0
of 7
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
jizDREVNn1dOx-zrZ2X3pZv...woff2swap
Size15 KB
Load time15 ms
Start1.3 s
RiskFOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLEj6Z1x...woff2swap
Size8 KB
Load time22 ms
Start1.3 s
RiskFOUT — text flashes from fallback to web font
pxiEyp8kv8JHgFVrJJfecnF...woff2swap
Size8 KB
Load time9 ms
Start1.3 s
RiskFOUT — text flashes from fallback to web font
jizAREVNn1dOx-zrZ2X3pZv...woff2swap
Size15 KB
Load time15 ms
Start1.3 s
RiskFOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLCz7Z1x...woff2swap
Size8 KB
Load time17 ms
Start1.3 s
RiskFOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLGT9Z1x...woff2swap
Size8 KB
Load time12 ms
Start1.3 s
RiskFOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLDz8Z1x...woff2swap
Size8 KB
Load time13 ms
Start1.3 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+
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
39 requests over 2559ms
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-party1451ms · 479KB · $19/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.hud.gov
www.hud.gov
Other
459ms
152 KB
—
$6/mo
Costly
Unattributable
Unattributable
Other
426ms
0 KB
—
$6/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
327ms
147 KB
42%
$4/mo
Costly
www.hud.gov
www.hud.gov
Other
161ms
94 KB
72%
$2/mo
Optional
www.hud.gov
www.hud.gov
Other
78ms
86 KB
73%
$1/mo
Optional
www.hud.gov
Other
Costly
Execution459ms
Transfer152 KB
Monthly Cost$6/mo
Unattributable
Other
Costly
Execution426ms
Transfer0 KB
Monthly Cost$6/mo
Google Tag Manager
Tag Manager
Costly
Execution327ms
Transfer147 KB
Unused42%
Monthly Cost$4/mo
www.hud.gov
Other
Optional
Execution161ms
Transfer94 KB
Unused72%
Monthly Cost$2/mo
www.hud.gov
Other
Optional
Execution78ms
Transfer86 KB
Unused73%
Monthly Cost$1/mo
These scripts may cost more than they're worth
www.hud.gov adds 459ms and costs ~$6/month
Unattributable adds 426ms and costs ~$6/month
Google Tag Manager adds 327ms and costs ~$4/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.hud.gov takes 459ms 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 426ms 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 327ms 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
72% of www.hud.gov'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
73% of www.hud.gov'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.