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.
3.20 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
5.88 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.23 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.040
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.48 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.
16.30 s
Page Load Progression
DPage Weight BudgetAction2.1 MB transferred, 91 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
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
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 CostAction3634ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 684ms | 20ms | 0ms | 3rd |
| https://www.ojp.gov/ | 364ms | 5ms | 1ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5KXJ326 | 307ms | 245ms | 57ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-JLDSXSEGN2&cx=c>m=4e64h1 | 305ms | 243ms | 59ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L | 304ms | 249ms | 52ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-KN2MB6XRQB&cx=c&_slc=1 | 277ms | 219ms | 52ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-SVCRVP1CGL&cx=c&_slc=1 | 272ms | 219ms | 51ms | 3rd |
| https://www.ojp.gov/sites/g/files/xyckuh241/files/js/js_8U3SyVe7sz_u4nYgMnK-280-ZtLmzIBgkKutPqHICMc.js?scope=footer&delta=0&language=en&theme=ojp&include=eJxdT-0OwyAIfCEjv_Y8hgJTWyuNH9kef65x2boQjjsuIQdmClrWCjiJpV6b7mbpsHRLQWiTYgZwbFpuTvZFmIUdaW6SG_T64OqQSAtHzfZeToMN6-pqwBKzhx9u5NlSzBtw6QcmO6Xxqj6Ja-jBD_jXFld8Xpe70fWA0e_pPhHnJ99Ep8vYRi1JKlzl6VbBQgHmdaryAm-4bLs | 233ms | 200ms | 14ms | 3rd |
| https://www.google-analytics.com/analytics.js | 142ms | 116ms | 7ms | 3rd |
| https://cse.google.com/cse.js?cx=015849196504226064512:uyit-fm6gna | 126ms | 116ms | 1ms | 3rd |
Showing top 10 of 18 scripts
FJS BundlesAction33 scripts, 610 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| 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-SVCRVP1CGL&cx=c&_slc=1 | 147 KB | 65 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-KN2MB6XRQB&cx=c&_slc=1 | 148 KB | 64 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5KXJ326 | 142 KB | 63 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-JLDSXSEGN2&cx=c>m=4e64h1 | 151 KB | 62 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L | 147 KB | 62 KB (42%) | ✓ | 3rd |
| https://www.ojp.gov/libraries/datatables.net/js/jquery.dataTables.js?v=1.x | 114 KB | 58 KB (51%) | ✗ | 3rd |
| https://www.google.com/cse/static/element/dc329f57de078f5d/cse_element__en.js?usqp=CAM%3D | 103 KB | 53 KB (51%) | ✓ | 3rd |
| https://cse.google.com/adsense/search/async-ads.js | 44 KB | 32 KB (73%) | ✓ | 3rd |
| https://www.ojp.gov/sites/g/files/xyckuh241/files/js/js_H7uUlDryb80zbi6F0CcdDtq0dQm5Un-embjmyYjkvSw.js?scope=footer&delta=12&language=en&theme=ojp&include=eJxdT-0OwyAIfCEjv_Y8hgJTWyuNH9kef65x2boQjjsuIQdmClrWCjiJpV6b7mbpsHRLQWiTYgZwbFpuTvZFmIUdaW6SG_T64OqQSAtHzfZeToMN6-pqwBKzhx9u5NlSzBtw6QcmO6Xxqj6Ja-jBD_jXFld8Xpe70fWA0e_pPhHnJ99Ep8vYRi1JKlzl6VbBQgHmdaryAm-4bLs | 33 KB | 24 KB (72%) | ✓ | 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 InventoryAction91 resources · 2.1 MB · 610 KB savings availableFIX
~610.1 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 91 resources | 2.1 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction32 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
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
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
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
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
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
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 Loading6 fonts (262 KB)PASS
Web fonts
6
262 KB total
Render-blocking
0
of 6
Dominant font-display
swap
Most common across fonts
Font loading timeline
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 CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints6 hints, 0 missing preconnectsPASS
Current Resource Hints
6 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall91 requests over 3426msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 684ms | 0 KB | — | $9/mo | Costly |
www.ojp.gov www.ojp.gov | Other | 364ms | 11 KB | — | $5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 307ms | 142 KB | 44% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 305ms | 151 KB | 41% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 304ms | 147 KB | 42% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 277ms | 148 KB | 43% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 272ms | 147 KB | 44% | $4/mo | Costly |
www.ojp.gov www.ojp.gov | Other | 233ms | 34 KB | 64% | $3/mo | Costly |
Google Analytics www.google-analytics.com | Analytics | 142ms | 21 KB | — | $2/mo | Optional |
cse.google.com cse.google.com | Other | 126ms | 4 KB | — | $2/mo | Optional |
www.ojp.gov www.ojp.gov | Other | 101ms | 114 KB | 51% | $1/mo | Optional |
www.ojp.gov www.ojp.gov | Other | 87ms | 92 KB | — | $1/mo | Optional |
www.google.com www.google.com | Other | 82ms | 103 KB | 51% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 81ms | 147 KB | 72% | $1/mo | Optional |
dap.digitalgov.gov dap.digitalgov.gov | Other | 71ms | 4 KB | — | $1/mo | Optional |
www.ojp.gov www.ojp.gov | Other | 70ms | 33 KB | 72% | $1/mo | Optional |
www.ojp.gov www.ojp.gov | Other | 70ms | 90 KB | — | $1/mo | Optional |
cse.google.com cse.google.com | Other | 58ms | 44 KB | 73% | $1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 684ms and costs ~$9/month
- www.ojp.gov adds 364ms and costs ~$5/month
- Google Tag Manager adds 307ms and costs ~$4/month
- Google Tag Manager adds 305ms and costs ~$4/month
- Google Tag Manager adds 304ms and costs ~$4/month
- Google Tag Manager adds 277ms and costs ~$4/month
- Google Tag Manager adds 272ms and costs ~$4/month
- www.ojp.gov adds 233ms 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
Unattributable takes 684ms 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.ojp.gov takes 364ms 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 307ms 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 305ms 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 304ms 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 277ms 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 272ms 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.ojp.gov takes 233ms 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
64% of www.ojp.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
51% of www.ojp.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
51% of www.google.com'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
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
72% of www.ojp.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
73% of cse.google.com'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