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https://govtrack.us

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
81
GRADE
B
FIX
3
REVIEW
5
PASS
7
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
68
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

3.32 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

9.43 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

0 ms

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.

3.61 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.

9.44 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
17
7 PASS 5 REVIEW 3 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (1.9 MiB of 1.9 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
Page Weight Inventory
Action
35 resources · 1.9 MB · 124 KB savings available
FIX
35 resources · 1.9 MB · 124 KB savings available
Warning::
Page weight 912 KB over 1MB target
Got: 1.9 MB Expected: ≤ 1 MB
Info::
~124 KB of savings available
Warning::
34 third-party resources (100% of weight)
35 resources · 1.9 MiB · 34 third-party 911.5 KiB over 1MB target
Image 56% · 1.1 MiB
CSS 18% · 342.2 KiB
Font 16% · 307.0 KiB
JavaScript 10% · 199.5 KiB
Document 1% · 9.9 KiB
Other 0% · 767 B

~124.3 KiB of savings available

Remove unused JavaScript: 124.3 KiB
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

C
Page Weight Budget
Action
1.9 MB transferred, 35 requests
REVIEW
1.9 MB transferred, 35 requests
Info::
Page weighs 1.9 MB (1.9 MB transferred)
Warning::
Images are 1.0 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.0 MB
Info::
CSS is 342 KB — consider purging unused styles
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
Got: 342 KB
Info::
Fonts are 307 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 307 KB
Info::
35 HTTP requests
Info::
Estimated 0.40 g CO2 per page load
1.9 MB / 2.4 MB budget
1.9 MB transferred
35 requests
0.40 g CO2 per page load
Images 1.0 MiB 55%
CSS 342.2 KiB 18%
Fonts 307.0 KiB 16%
JavaScript 199.5 KiB 10%
Other 15.9 KiB 1%
HTML 9.5 KiB 0%
Other 767 B 0%
0 2.4 MB 4.9 MB
Approaching limit

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.

Why this matters

CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.

Source: web.dev

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

C
Image Optimization
Action
14 images, 0 KB saveable
REVIEW
14 images, 0 KB saveable
Warning::
https://www.govtrack.us/congress/bills/119/hr227/t... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.govtrack.us/congress/bills/119/hr6495/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.govtrack.us/congress/votes/119-2026/h1... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.govtrack.us/congress/votes/119-2026/h1... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.govtrack.us/congress/bills/119/hr7971/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.govtrack.us/congress/bills/119/hr6506/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.govtrack.us/congress/votes/119-2026/h1... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.govtrack.us/congress/votes/119-2026/h1... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.govtrack.us/congress/votes/119-2026/h1... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.govtrack.us/congress/bills/119/hr6956/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.govtrack.us/congress/bills/119/hr5366/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
14 images 1.0 MB
0 oversized -0 KB
13 legacy format
11 missing dimensions CLS 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

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

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

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

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

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

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

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

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

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

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

B
JS Execution Cost
910ms total JS execution
REVIEW
910ms total JS execution
Warning::
Unattributable: 496ms CPU time
Warning::
https://www.govtrack.us/: 347ms CPU time
Info::
https://www.govtrack.us/static/vendor/jquery.js: 66ms CPU time
Warning::
Third-party scripts: 910ms (100% of total)

Main Thread Breakdown

Other 43% Style & Layout 26% Rendering 13% Script Evaluation 8% Parse HTML & CSS 5% Garbage Collection 3%
ScriptTotalScriptingParse/CompileParty
Unattributable496ms7ms0ms3rd
https://www.govtrack.us/347ms6ms2ms3rd
https://www.govtrack.us/static/vendor/jquery.js66ms43ms10ms3rd
B
JS Bundles
7 scripts, 124 KB unused
REVIEW
7 scripts, 124 KB unused
Warning::
https://www.govtrack.us/static/vendor/bootstrap.bu...: 66 KB unused (83%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.govtrack.us/static/vendor/jquery.js: 59 KB unused (68%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.govtrack.us/static/js/jquery-utils.js?...: unminified — 3 KB could be saved
Info::
Total unused JavaScript: 124 KB
124 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.govtrack.us/static/vendor/bootstrap.bundle.min.js79 KB66 KB (83%)✓3rd
https://www.govtrack.us/static/vendor/jquery.js87 KB59 KB (68%)✓3rd
https://www.govtrack.us/static/js/jquery.cookie.js2 KB—✓3rd
https://www.govtrack.us/static/js/jquery-utils.js?201603106 KB—✗3rd
https://www.govtrack.us/static/vendor/jquery.lazy.min.js5 KB—✓3rd
https://www.govtrack.us/_twostream/user-head?path=/1 KB—✓3rd
https://www.govtrack.us/static/js/govtrack.js?2025042319 KB—✗3rd

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

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 (307 KB)
PASS
4 fonts (307 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

307 KB total

Render-blocking

0

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 3.3 s LCP 9.4 shttps://www.govtrack.us/static/vendor/Public_Sans_300.woffPublic_Sans_300.woff https://www.govtrack.us/static/vendor/Public_Sans_300.woff — 18.4 KiB — 146 ms — font-display: swaphttps://www.govtrack.us/static/vendor/Public_Sans_700.woffPublic_Sans_700.woff https://www.govtrack.us/static/vendor/Public_Sans_700.woff — 18.5 KiB — 148 ms — font-display: swaphttps://www.govtrack.us/static/vendor/fontawesome/webfonts/fa-solid-900.woff2fa-solid-900.woff2 https://www.govtrack.us/static/vendor/fontawesome/webfonts/fa-solid-900.woff2 — 154.2 KiB — 150 ms — font-display: swaphttps://www.govtrack.us/static/vendor/fontawesome/webfonts/fa-brands-400.woff2fa-brands-400.woff2 https://www.govtrack.us/static/vendor/fontawesome/webfonts/fa-brands-400.woff2 — 115.9 KiB — 150 ms — font-display: swap
Public_Sans_300.woff woff swap
Size 18 KB
Load time 146 ms
Start 1.5 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Public_Sans_700.woff woff swap
Size 19 KB
Load time 148 ms
Start 1.5 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
fa-solid-900.woff2 woff2 swap
Size 154 KB
Load time 150 ms
Start 1.5 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
fa-brands-400.woff2 woff2 swap
Size 116 KB
Load time 150 ms
Start 1.5 s
Risk FOUT — text flashes from fallback to web font
  • 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 ~146 KB and ~292 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
Network Waterfall
35 requests over 2284ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 3.3 s LCP 9.4 shttps://govtrack.us// https://govtrack.us/ — 301 — 401 B — 417 ms — h2https://www.govtrack.us/www.govtrack.us/ https://www.govtrack.us/ — 200 — 9.5 KiB — 145 ms — h2https://www.govtrack.us/static/vendor/bootstrap.min.csswww.govtrack.us/static/vendor/boots... https://www.govtrack.us/static/vendor/bootstrap.min.css — 200 — 191.0 KiB — 682 ms — h2https://www.govtrack.us/static/vendor/fontawesome/css/fontawesome.csswww.govtrack.us/static/vendor/fonta... https://www.govtrack.us/static/vendor/fontawesome/css/fontawesome.css — 200 — 102.9 KiB — 681 ms — h2https://www.govtrack.us/static/vendor/fontawesome/css/solid.csswww.govtrack.us/static/vendor/fonta... https://www.govtrack.us/static/vendor/fontawesome/css/solid.css — 200 — 1.1 KiB — 549 ms — h2https://www.govtrack.us/static/vendor/fontawesome/css/brands.csswww.govtrack.us/static/vendor/fonta... https://www.govtrack.us/static/vendor/fontawesome/css/brands.css — 200 — 24.9 KiB — 549 ms — h2https://www.govtrack.us/static/css/all-min.css?20241114www.govtrack.us/static/css/all-min.... https://www.govtrack.us/static/css/all-min.css?20241114 — 200 — 20.6 KiB — 680 ms — h2https://www.govtrack.us/congress/votes/119-2026/h131/thumbnailwww.govtrack.us/congress/votes/119-... https://www.govtrack.us/congress/votes/119-2026/h131/thumbnail — 200 — 132.3 KiB — 684 ms — h2https://www.govtrack.us/congress/votes/119-2026/h129/thumbnailwww.govtrack.us/congress/votes/119-... https://www.govtrack.us/congress/votes/119-2026/h129/thumbnail — 200 — 131.8 KiB — 141 ms — h2https://www.govtrack.us/static/vendor/google-fonts.csswww.govtrack.us/static/vendor/googl... https://www.govtrack.us/static/vendor/google-fonts.css — 200 — 1.6 KiB — 139 ms — h2https://www.govtrack.us/congress/votes/119-2026/h128/thumbnailwww.govtrack.us/congress/votes/119-... https://www.govtrack.us/congress/votes/119-2026/h128/thumbnail — 200 — 131.8 KiB — 139 ms — h2https://www.govtrack.us/congress/votes/119-2026/h127/thumbnailwww.govtrack.us/congress/votes/119-... https://www.govtrack.us/congress/votes/119-2026/h127/thumbnail — 200 — 131.8 KiB — 192 ms — h2https://www.govtrack.us/congress/votes/119-2026/h126/thumbnailwww.govtrack.us/congress/votes/119-... https://www.govtrack.us/congress/votes/119-2026/h126/thumbnail — 200 — 131.7 KiB — 141 ms — h2https://www.govtrack.us/static/vendor/jquery.jswww.govtrack.us/static/vendor/jquer... https://www.govtrack.us/static/vendor/jquery.js — 200 — 86.7 KiB — 143 ms — h2https://www.govtrack.us/static/js/jquery.cookie.jswww.govtrack.us/static/js/jquery.co... https://www.govtrack.us/static/js/jquery.cookie.js — 200 — 2.4 KiB — 144 ms — h2https://www.govtrack.us/static/js/jquery-utils.js?20160310www.govtrack.us/static/js/jquery-ut... https://www.govtrack.us/static/js/jquery-utils.js?20160310 — 200 — 6.3 KiB — 145 ms — h2https://www.govtrack.us/static/vendor/jquery.lazy.min.jswww.govtrack.us/static/vendor/jquer... https://www.govtrack.us/static/vendor/jquery.lazy.min.js — 200 — 5.4 KiB — 147 ms — h2data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='…www.w3.org/2000/svg' viewBox='0 0 3... data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='… — 200 — 0 B — 0 ms — datahttps://www.govtrack.us/static/images/capitol_splash_1024.jpegwww.govtrack.us/static/images/capit... https://www.govtrack.us/static/images/capitol_splash_1024.jpeg — 200 — 133.8 KiB — 140 ms — h2https://www.govtrack.us/static/images/logo.png?20241110www.govtrack.us/static/images/logo.... https://www.govtrack.us/static/images/logo.png?20241110 — 200 — 4.4 KiB — 141 ms — h2https://www.govtrack.us/static/vendor/Public_Sans_300.woffwww.govtrack.us/static/vendor/Publi... https://www.govtrack.us/static/vendor/Public_Sans_300.woff — 200 — 18.4 KiB — 146 ms — h2https://www.govtrack.us/static/vendor/Public_Sans_700.woffwww.govtrack.us/static/vendor/Publi... https://www.govtrack.us/static/vendor/Public_Sans_700.woff — 200 — 18.5 KiB — 148 ms — h2https://www.govtrack.us/static/vendor/fontawesome/webfonts/fa-solid-900.woff2www.govtrack.us/static/vendor/fonta... https://www.govtrack.us/static/vendor/fontawesome/webfonts/fa-solid-900.woff2 — 200 — 154.2 KiB — 150 ms — h2https://www.govtrack.us/static/vendor/fontawesome/webfonts/fa-brands-400.woff2www.govtrack.us/static/vendor/fonta... https://www.govtrack.us/static/vendor/fontawesome/webfonts/fa-brands-400.woff2 — 200 — 115.9 KiB — 150 ms — h2https://www.govtrack.us/static/vendor/bootstrap.bundle.min.jswww.govtrack.us/static/vendor/boots... https://www.govtrack.us/static/vendor/bootstrap.bundle.min.js — 200 — 79.1 KiB — 145 ms — h2https://www.govtrack.us/_twostream/user-head?path=/www.govtrack.us/_twostream/user-hea... https://www.govtrack.us/_twostream/user-head?path=/ — 200 — 1.0 KiB — 150 ms — h2https://www.govtrack.us/static/js/govtrack.js?20250423www.govtrack.us/static/js/govtrack.... https://www.govtrack.us/static/js/govtrack.js?20250423 — 200 — 18.6 KiB — 139 ms — h2https://www.govtrack.us/static/favicon/site.webmanifestwww.govtrack.us/static/favicon/site... https://www.govtrack.us/static/favicon/site.webmanifest — 200 — 767 B — 415 ms — h2https://www.govtrack.us/congress/bills/119/hr6956/thumbnail?aspect=0.5625www.govtrack.us/congress/bills/119/... https://www.govtrack.us/congress/bills/119/hr6956/thumbnail?aspect=0.5625 — 200 — 57.3 KiB — 185 ms — h2https://www.govtrack.us/congress/bills/119/hr5366/thumbnail?aspect=0.5625www.govtrack.us/congress/bills/119/... https://www.govtrack.us/congress/bills/119/hr5366/thumbnail?aspect=0.5625 — 200 — 42.7 KiB — 250 ms — h2
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 3.3 s LCP 9.4 shttps://govtrack.us// https://govtrack.us/ — 301 — 401 B — 417 ms — h2https://www.govtrack.us/www.govtrack.us/ https://www.govtrack.us/ — 200 — 9.5 KiB — 145 ms — h2https://www.govtrack.us/static/vendor/bootstrap.min.csswww.govtrack.us/static/vendor/boots... https://www.govtrack.us/static/vendor/bootstrap.min.css — 200 — 191.0 KiB — 682 ms — h2https://www.govtrack.us/static/vendor/fontawesome/css/fontawesome.csswww.govtrack.us/static/vendor/fonta... https://www.govtrack.us/static/vendor/fontawesome/css/fontawesome.css — 200 — 102.9 KiB — 681 ms — h2https://www.govtrack.us/static/vendor/fontawesome/css/solid.csswww.govtrack.us/static/vendor/fonta... https://www.govtrack.us/static/vendor/fontawesome/css/solid.css — 200 — 1.1 KiB — 549 ms — h2https://www.govtrack.us/static/vendor/fontawesome/css/brands.csswww.govtrack.us/static/vendor/fonta... https://www.govtrack.us/static/vendor/fontawesome/css/brands.css — 200 — 24.9 KiB — 549 ms — h2https://www.govtrack.us/static/css/all-min.css?20241114www.govtrack.us/static/css/all-min.... https://www.govtrack.us/static/css/all-min.css?20241114 — 200 — 20.6 KiB — 680 ms — h2https://www.govtrack.us/congress/votes/119-2026/h131/thumbnailwww.govtrack.us/congress/votes/119-... https://www.govtrack.us/congress/votes/119-2026/h131/thumbnail — 200 — 132.3 KiB — 684 ms — h2https://www.govtrack.us/congress/votes/119-2026/h129/thumbnailwww.govtrack.us/congress/votes/119-... https://www.govtrack.us/congress/votes/119-2026/h129/thumbnail — 200 — 131.8 KiB — 141 ms — h2https://www.govtrack.us/static/vendor/google-fonts.csswww.govtrack.us/static/vendor/googl... https://www.govtrack.us/static/vendor/google-fonts.css — 200 — 1.6 KiB — 139 ms — h2https://www.govtrack.us/congress/votes/119-2026/h128/thumbnailwww.govtrack.us/congress/votes/119-... https://www.govtrack.us/congress/votes/119-2026/h128/thumbnail — 200 — 131.8 KiB — 139 ms — h2https://www.govtrack.us/congress/votes/119-2026/h127/thumbnailwww.govtrack.us/congress/votes/119-... https://www.govtrack.us/congress/votes/119-2026/h127/thumbnail — 200 — 131.8 KiB — 192 ms — h2https://www.govtrack.us/congress/votes/119-2026/h126/thumbnailwww.govtrack.us/congress/votes/119-... https://www.govtrack.us/congress/votes/119-2026/h126/thumbnail — 200 — 131.7 KiB — 141 ms — h2https://www.govtrack.us/static/vendor/jquery.jswww.govtrack.us/static/vendor/jquer... https://www.govtrack.us/static/vendor/jquery.js — 200 — 86.7 KiB — 143 ms — h2https://www.govtrack.us/static/js/jquery.cookie.jswww.govtrack.us/static/js/jquery.co... https://www.govtrack.us/static/js/jquery.cookie.js — 200 — 2.4 KiB — 144 ms — h2https://www.govtrack.us/static/js/jquery-utils.js?20160310www.govtrack.us/static/js/jquery-ut... https://www.govtrack.us/static/js/jquery-utils.js?20160310 — 200 — 6.3 KiB — 145 ms — h2https://www.govtrack.us/static/vendor/jquery.lazy.min.jswww.govtrack.us/static/vendor/jquer... https://www.govtrack.us/static/vendor/jquery.lazy.min.js — 200 — 5.4 KiB — 147 ms — h2data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='…www.w3.org/2000/svg' viewBox='0 0 3... data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='… — 200 — 0 B — 0 ms — datahttps://www.govtrack.us/static/images/capitol_splash_1024.jpegwww.govtrack.us/static/images/capit... https://www.govtrack.us/static/images/capitol_splash_1024.jpeg — 200 — 133.8 KiB — 140 ms — h2https://www.govtrack.us/static/images/logo.png?20241110www.govtrack.us/static/images/logo.... https://www.govtrack.us/static/images/logo.png?20241110 — 200 — 4.4 KiB — 141 ms — h2https://www.govtrack.us/static/vendor/Public_Sans_300.woffwww.govtrack.us/static/vendor/Publi... https://www.govtrack.us/static/vendor/Public_Sans_300.woff — 200 — 18.4 KiB — 146 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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-party 910ms · 96KB · $12/mo
Unattributable
Other
Costly
Execution 496ms
Transfer 0 KB
Monthly Cost $7/mo
www.govtrack.us
Other
Costly
Execution 347ms
Transfer 9 KB
Monthly Cost $5/mo
www.govtrack.us
Other
Optional
Execution 66ms
Transfer 87 KB
Unused 68%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Unattributable adds 496ms and costs ~$7/month
  • www.govtrack.us adds 347ms and costs ~$5/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 496ms 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.govtrack.us takes 347ms 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

68% of www.govtrack.us'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

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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