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https://govtrack.us

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
81
GRADE
B
FIX
3
REVIEW
4
PASS
6
INFO
2

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

Mobile Desktop
92
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.

761 ms

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

1.70 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.

0.002

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

1.31 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.

1.70 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
15
6 PASS 4 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 (2.0 MiB of 2.0 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
Page Weight Inventory
Action
34 resources · 2.0 MB · 124 KB savings available
FIX
34 resources · 2.0 MB · 124 KB savings available
Warning::
Page weight 1011 KB over 1MB target
Got: 2.0 MB Expected: ≤ 1 MB
Info::
~124 KB of savings available
Warning::
33 third-party resources (100% of weight)
Info::
1 resources over 200KB
34 resources · 2.0 MiB · 33 third-party 1011.2 KiB over 1MB target
Image 58% · 1.1 MiB
CSS 17% · 342.2 KiB
Font 15% · 307.0 KiB
JavaScript 10% · 199.5 KiB
Document 0% · 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
2.0 MB transferred, 34 requests
REVIEW
2.0 MB transferred, 34 requests
Info::
Page weighs 2.0 MB (2.0 MB transferred)
Warning::
Images are 1.1 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.1 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::
34 HTTP requests
Info::
Estimated 0.42 g CO2 per page load
2.0 MB / 2.4 MB budget
2.0 MB transferred
34 requests
0.42 g CO2 per page load
Images 1.1 MiB 57%
CSS 342.2 KiB 17%
Fonts 307.0 KiB 15%
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
13 images, 0 KB saveable
REVIEW
13 images, 0 KB saveable
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.
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/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/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/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.
13 images 1.1 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 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+
JS Execution Cost
212ms total JS execution
PASS
212ms total JS execution
Info::
Unattributable: 113ms CPU time
Info::
https://www.govtrack.us/: 99ms CPU time
Warning::
Third-party scripts: 212ms (100% of total)

Main Thread Breakdown

Other 45% Style & Layout 28% Rendering 12% Script Evaluation 6% Parse HTML & CSS 6%
ScriptTotalScriptingParse/CompileParty
Unattributable113ms1ms0ms3rd
https://www.govtrack.us/99ms1ms1ms3rd
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 500 ms 1.0 s 1.5 s FCP 761 ms LCP 1.7 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 — 155 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 — 161 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 — 159 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 — 222 ms — font-display: swap
Public_Sans_300.woff woff swap
Size 18 KB
Load time 155 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 161 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
Public_Sans_700.woff woff swap
Size 19 KB
Load time 159 ms
Start 1.5 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
fa-brands-400.woff2 woff2 swap
Size 116 KB
Load time 222 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
Network Waterfall
34 requests over 2325ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 761 ms LCP 1.7 shttps://govtrack.us// https://govtrack.us/ — 301 — 401 B — 425 ms — h2https://www.govtrack.us/www.govtrack.us/ https://www.govtrack.us/ — 200 — 9.5 KiB — 141 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 — 565 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 — 689 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 — 563 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 — 687 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 — 687 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 — 697 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 — 140 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 — 143 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 — 191 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 — 143 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 — 150 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 — 145 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 — 146 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 — 140 ms — h2https://www.govtrack.us/static/images/capitol_splash_1200.jpegwww.govtrack.us/static/images/capit... https://www.govtrack.us/static/images/capitol_splash_1200.jpeg — 200 — 233.5 KiB — 176 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 — 178 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 — 155 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 — 161 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 — 159 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 — 222 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 — 141 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 — 157 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 — 148 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 — 439 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 — 209 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 — 214 ms — h2https://www.govtrack.us/congress/bills/119/hr227/thumbnail?aspect=0.5625www.govtrack.us/congress/bills/119/... https://www.govtrack.us/congress/bills/119/hr227/thumbnail?aspect=0.5625 — 200 — 23.6 KiB — 244 ms — h2
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 761 ms LCP 1.7 shttps://govtrack.us// https://govtrack.us/ — 301 — 401 B — 425 ms — h2https://www.govtrack.us/www.govtrack.us/ https://www.govtrack.us/ — 200 — 9.5 KiB — 141 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 — 565 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 — 689 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 — 563 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 — 687 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 — 687 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 — 697 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 — 140 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 — 143 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 — 191 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 — 143 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 — 150 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 — 145 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 — 146 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 — 140 ms — h2https://www.govtrack.us/static/images/capitol_splash_1200.jpegwww.govtrack.us/static/images/capit... https://www.govtrack.us/static/images/capitol_splash_1200.jpeg — 200 — 233.5 KiB — 176 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 — 178 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 — 155 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 — 161 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 — 159 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 — 222 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 — 141 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 — 157 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 — 148 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 — 439 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 — 209 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 — 214 ms — h2https://www.govtrack.us/congress/bills/119/hr227/thumbnail?aspect=0.5625www.govtrack.us/congress/bills/119/... https://www.govtrack.us/congress/bills/119/hr227/thumbnail?aspect=0.5625 — 200 — 23.6 KiB — 244 ms — h2https://www.govtrack.us/congress/bills/119/hr7971/thumbnail?aspect=0.5625www.govtrack.us/congress/bills/119/... https://www.govtrack.us/congress/bills/119/hr7971/thumbnail?aspect=0.5625 — 200 — 47.3 KiB — 266 ms — h2https://www.govtrack.us/congress/bills/119/hr6495/thumbnail?aspect=0.5625www.govtrack.us/congress/bills/119/... https://www.govtrack.us/congress/bills/119/hr6495/thumbnail?aspect=0.5625 — 200 — 42.8 KiB — 327 ms — h2https://www.govtrack.us/congress/bills/119/hr6506/thumbnail?aspect=0.5625www.govtrack.us/congress/bills/119/... https://www.govtrack.us/congress/bills/119/hr6506/thumbnail?aspect=0.5625 — 200 — 49.4 KiB — 334 ms — h2https://www.govtrack.us/favicon.icowww.govtrack.us/favicon.ico https://www.govtrack.us/favicon.ico — 200 — 15.5 KiB — 140 ms — h2
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 212ms · 9KB · $3/mo
Unattributable
Other
Optional
Execution 113ms
Transfer 0 KB
Monthly Cost $2/mo
www.govtrack.us
Other
Optional
Execution 99ms
Transfer 9 KB
Monthly Cost $1/mo

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

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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