https://www.usda.gov/themes/custom/usda_uswds/img/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
29images1.8 MB
0oversized-0 KB
28legacy format
2missing 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
Performance issues directly impact user engagement and conversion rates.
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
4 fonts (737 KB)
PASS
4 fonts (737 KB)
Info::
i
4 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
4
737 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
PublicSans-VariableFont...ttfswap
Size51 KB
Load time31 ms
Start509 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
sourcesanspro-regular-w...woff2swap
Size20 KB
Load time18 ms
Start509 ms
RiskFOUT — text flashes from fallback to web font
sourcesanspro-bold-webf...woff2swap
Size20 KB
Load time19 ms
Start509 ms
RiskFOUT — text flashes from fallback to web font
Merriweather-variable.ttfttfswap
Size646 KB
Load time102 ms
Start510 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
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 ~532 KB and ~1064 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
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
A
HTTP Caching
max-age=3600 (1 hour)
PASS
max-age=3600 (1 hour)
Info::
✓
Cache-Control header is set
Got: public, max-age=3600
Info::
✓
Effective TTL: 1 hour (max-age=3600)
Info::
i
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
public, max-age=3600
Directive
Value
Meaning
public
—
Any cache may store this response
max-age
3600
Cache for 1 hour
Effective TTL: 3600 seconds
Network Waterfall
64 requests over 1813ms
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-party5867ms · 1096KB · $78/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
Unattributable
Unattributable
Other
1325ms
0 KB
—
$18/mo
Costly
www.usda.gov
www.usda.gov
Other
852ms
21 KB
—
$11/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
636ms
147 KB
41%
$8/mo
Costly
www.usda.gov
www.usda.gov
Other
434ms
34 KB
—
$6/mo
Costly
dap.digitalgov.gov
dap.digitalgov.gov
Other
400ms
9 KB
—
$5/mo
Costly
Google Analytics
www.google-analytics.com
Analytics
387ms
21 KB
—
$5/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
374ms
152 KB
42%
$5/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
356ms
147 KB
44%
$5/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
309ms
130 KB
49%
$4/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
273ms
147 KB
44%
$4/mo
Costly
dap.digitalgov.gov
dap.digitalgov.gov
Other
218ms
4 KB
—
$3/mo
Costly
www.usda.gov
www.usda.gov
Other
150ms
43 KB
61%
$2/mo
Optional
www.usda.gov
www.usda.gov
Other
80ms
92 KB
—
$1/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
75ms
147 KB
72%
$1/mo
Optional
Unattributable
Other
Costly
Execution1325ms
Transfer0 KB
Monthly Cost$18/mo
www.usda.gov
Other
Costly
Execution852ms
Transfer21 KB
Monthly Cost$11/mo
Google Tag Manager
Tag Manager
Costly
Execution636ms
Transfer147 KB
Unused41%
Monthly Cost$8/mo
www.usda.gov
Other
Costly
Execution434ms
Transfer34 KB
Monthly Cost$6/mo
dap.digitalgov.gov
Other
Costly
Execution400ms
Transfer9 KB
Monthly Cost$5/mo
Google Analytics
Analytics
Costly
Execution387ms
Transfer21 KB
Monthly Cost$5/mo
Google Tag Manager
Tag Manager
Costly
Execution374ms
Transfer152 KB
Unused42%
Monthly Cost$5/mo
Google Tag Manager
Tag Manager
Costly
Execution356ms
Transfer147 KB
Unused44%
Monthly Cost$5/mo
Google Tag Manager
Tag Manager
Costly
Execution309ms
Transfer130 KB
Unused49%
Monthly Cost$4/mo
Google Tag Manager
Tag Manager
Costly
Execution273ms
Transfer147 KB
Unused44%
Monthly Cost$4/mo
dap.digitalgov.gov
Other
Costly
Execution218ms
Transfer4 KB
Monthly Cost$3/mo
www.usda.gov
Other
Optional
Execution150ms
Transfer43 KB
Unused61%
Monthly Cost$2/mo
www.usda.gov
Other
Optional
Execution80ms
Transfer92 KB
Monthly Cost$1/mo
Google Tag Manager
Tag Manager
Optional
Execution75ms
Transfer147 KB
Unused72%
Monthly Cost$1/mo
These scripts may cost more than they're worth
Unattributable adds 1325ms and costs ~$18/month
www.usda.gov adds 852ms and costs ~$11/month
Google Tag Manager adds 636ms and costs ~$8/month
www.usda.gov adds 434ms and costs ~$6/month
dap.digitalgov.gov adds 400ms and costs ~$5/month
Google Analytics adds 387ms and costs ~$5/month
Google Tag Manager adds 374ms and costs ~$5/month
Google Tag Manager adds 356ms and costs ~$5/month
Google Tag Manager adds 309ms and costs ~$4/month
Google Tag Manager adds 273ms and costs ~$4/month
dap.digitalgov.gov adds 218ms and costs ~$3/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
Unattributable takes 1325ms 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.usda.gov takes 852ms 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 636ms 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.usda.gov takes 434ms 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
dap.digitalgov.gov takes 400ms 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 Analytics takes 387ms 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 374ms 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 356ms 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 309ms 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 273ms 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
dap.digitalgov.gov takes 218ms 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
61% of www.usda.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
72% 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.