Performance
· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
5.34 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
7.15 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.09 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
5.80 s
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
19.79 s
Page Load Progression
FPage Weight BudgetAction2.7 MB transferred, 92 requestsFIX
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.
Source: web.dev
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction6196ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.state.gov/ | 1341ms | 29ms | 15ms | 3rd |
| https://www.state.gov/wp-content/themes/state/js/state.min.js?ver=1775249325 | 741ms | 228ms | 108ms | 3rd |
| Unattributable | 663ms | 21ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-11238285267 | 651ms | 580ms | 64ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-N47R32EN4M&cx=c>m=4e64h1 | 401ms | 321ms | 69ms | 3rd |
| https://code.jquery.com/jquery-3.7.1.min.js?ver=3.7.1 | 342ms | 179ms | 23ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-T9WK49Q | 341ms | 266ms | 69ms | 3rd |
| https://www.state.gov/wp-content/plugins/complianz/cookiebanner/js/complianz.min.js?ver=1775249445 | 335ms | 286ms | 7ms | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-16950869199&cx=c>m=4e64h1 | 318ms | 261ms | 54ms | 3rd |
| https://www.state.gov/wp-content/plugins/total-survey-pro/modules//templates/DefaultTemplate/assets/js/app.min.js?ver=1.12.0 | 266ms | 201ms | 4ms | 3rd |
Showing top 10 of 17 scripts
FJS BundlesAction32 scripts, 537 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.state.gov/wp-content/themes/state/js/state.min.js?ver=1775249325 | 221 KB | 127 KB (60%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c>m=4e64h1 | 147 KB | 106 KB (72%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-N47R32EN4M&cx=c>m=4e64h1 | 174 KB | 69 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-T9WK49Q | 163 KB | 65 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L | 147 KB | 61 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-16950869199&cx=c>m=4e64h1 | 144 KB | 60 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-11238285267 | 148 KB | 49 KB (33%) | ✓ | 3rd |
| blob:https://www.state.gov/068102f1-76cd-4c83-901a-2cd173a95ee6 | -0 KB | — | ✓ | 3rd |
| https://www.state.gov/wp-content/themes/state/foresee_assets/code/19.14.14-fs/fs.compress.js | 22 KB | — | ✓ | 3rd |
| https://www.state.gov/wp-content/plugins/total-survey-pro/modules//templates/DefaultTemplate/assets/js/app.min.js?ver=1.12.0 | 19 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
FPage Weight InventoryAction92 resources · 2.7 MB · 537 KB savings availableFIX
~537.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 92 resources | 2.7 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction28 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
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.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading5 fonts (119 KB)PASS
Web fonts
5
119 KB total
Render-blocking
0
of 5
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
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 ~5 KB and ~10 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall92 requests over 2888msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.state.gov www.state.gov | Other | 1341ms | 56 KB | — | $18/mo | Costly |
www.state.gov www.state.gov | Other | 741ms | 221 KB | 60% | $10/mo | Costly |
Unattributable Unattributable | Other | 663ms | 0 KB | — | $9/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 651ms | 148 KB | 33% | $9/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 401ms | 174 KB | 40% | $5/mo | Costly |
code.jquery.com code.jquery.com | Other | 342ms | 30 KB | — | $5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 341ms | 163 KB | 40% | $5/mo | Costly |
www.state.gov www.state.gov | Other | 335ms | 21 KB | — | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 318ms | 144 KB | 42% | $4/mo | Costly |
www.state.gov www.state.gov | Other | 266ms | 19 KB | — | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 226ms | 147 KB | 41% | $3/mo | Costly |
www.state.gov www.state.gov | Other | 149ms | 156 KB | — | $2/mo | Optional |
www.state.gov www.state.gov | Other | 139ms | 15 KB | — | $2/mo | Optional |
dap.digitalgov.gov dap.digitalgov.gov | Other | 87ms | 5 KB | — | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 85ms | 147 KB | 72% | $1/mo | Optional |
Google Analytics www.google-analytics.com | Analytics | 60ms | 21 KB | — | $1/mo | Optional |
www.state.gov www.state.gov | Other | 52ms | 22 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- www.state.gov adds 1341ms and costs ~$18/month
- www.state.gov adds 741ms and costs ~$10/month
- Unattributable adds 663ms and costs ~$9/month
- Google Tag Manager adds 651ms and costs ~$9/month
- Google Tag Manager adds 401ms and costs ~$5/month
- code.jquery.com adds 342ms and costs ~$5/month
- Google Tag Manager adds 341ms and costs ~$5/month
- www.state.gov adds 335ms and costs ~$4/month
- Google Tag Manager adds 318ms and costs ~$4/month
- www.state.gov adds 266ms and costs ~$4/month
- Google Tag Manager adds 226ms and costs ~$3/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
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.state.gov takes 1341ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
www.state.gov takes 741ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
60% of www.state.gov's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
Unattributable takes 663ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 651ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 401ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
code.jquery.com takes 342ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 341ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
www.state.gov takes 335ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 318ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
www.state.gov takes 266ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 226ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
72% of Google Tag Manager's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev