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https://regulations.gov

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
4
REVIEW
4
PASS
5
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.
87
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.
91
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.

1.76 s

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

2.62 s

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

211 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.021

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

2.30 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.

2.90 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
5 PASS 4 REVIEW 4 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
F
JS Bundles
Action
9 scripts, 798 KB unused
FIX
9 scripts, 798 KB unused
Warning::
https://www.regulations.gov/assets/vendor-cfd977eb...: 359 KB unused (37%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.regulations.gov/assets/chunk.27.a5488a...: 199 KB unused (98%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.regulations.gov/assets/regs-gov-f56dc0...: 114 KB unused (44%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-JGTF...: 65 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-CSLL...: 60 KB unused (41%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 798 KB
798 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.regulations.gov/assets/vendor-cfd977eb9899d84134696b34547ee0a5.js973 KB359 KB (37%)✓3rd
https://www.regulations.gov/assets/chunk.27.a5488a95adbaf3318aed.js212 KB199 KB (98%)✓3rd
https://www.regulations.gov/assets/regs-gov-f56dc086009a24540298007d820624c9.js263 KB114 KB (44%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-JGTFN0MKWK&cx=c&_slc=1150 KB65 KB (43%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L147 KB60 KB (41%)✓3rd
https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=GSA9 KB—✓3rd
https://www.regulations.gov/assets/chunk.143.f0f3e2a6910cb56061ad.js4 KB—✓3rd
https://dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js4 KB—✓3rd
https://www.google-analytics.com/analytics.js21 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

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

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

F
Page Weight Inventory
Action
43 resources · 2.0 MB · 798 KB savings available
FIX
43 resources · 2.0 MB · 798 KB savings available
Warning::
Page weight 1.0 MB over 1MB target
Got: 2.0 MB Expected: ≤ 1 MB
Info::
~798 KB of savings available
Warning::
42 third-party resources (100% of weight)
Info::
3 resources over 200KB
43 resources · 2.0 MiB · 42 third-party 1.0 MiB over 1MB target
JavaScript 86% · 1.7 MiB
Other 9% · 187.8 KiB
Image 3% · 68.4 KiB
CSS 2% · 40.5 KiB
Document 0% · 2.4 KiB

~797.8 KiB of savings available

Remove unused JavaScript: 797.8 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, 43 requests
REVIEW
2.0 MB transferred, 43 requests
Info::
Page weighs 7.0 MB (2.0 MB transferred)
Warning::
JavaScript is 1.7 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.7 MB
Info::
43 HTTP requests
Info::
Estimated 0.43 g CO2 per page load
2.0 MB / 2.4 MB budget
2.0 MB transferred
43 requests
0.43 g CO2 per page load
JavaScript 1.7 MiB 86%
Other 187.3 KiB 9%
Images 65.1 KiB 3%
CSS 40.5 KiB 2%
Other 3.5 KiB 0%
HTML 2.2 KiB 0%
Other 572 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Approaching limit

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

C
Image Optimization
Action
9 images, 0 KB saveable
REVIEW
9 images, 0 KB saveable
Warning::
https://www.regulations.gov/assets/images/usa-flag... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.regulations.gov/assets/images/icon-dog... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.regulations.gov/assets/images/regulati... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
9 images 65 KB
0 oversized -0 KB
9 legacy format
3 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

B
JS Execution Cost
852ms total JS execution
REVIEW
852ms total JS execution
Warning::
https://www.regulations.gov/assets/vendor-cfd977eb...: 557ms CPU time
Info::
Unattributable: 87ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-CSLL...: 74ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-JGTF...: 71ms CPU time
Info::
https://www.regulations.gov/assets/regs-gov-f56dc0...: 62ms CPU time
Warning::
Third-party scripts: 852ms (100% of total)

Main Thread Breakdown

Script Evaluation 51% Script Parsing & Compilation 21% Style & Layout 13% Other 11%
ScriptTotalScriptingParse/CompileParty
https://www.regulations.gov/assets/vendor-cfd977eb9899d84134696b34547ee0a5.js557ms318ms105ms3rd
Unattributable87ms2ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L74ms61ms12ms3rd
https://www.googletagmanager.com/gtag/js?id=G-JGTFN0MKWK&cx=c&_slc=171ms57ms13ms3rd
https://www.regulations.gov/assets/regs-gov-f56dc086009a24540298007d820624c9.js62ms19ms44ms3rd
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
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
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
43 requests over 2222ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.8 s LCP 2.6 shttps://regulations.gov// https://regulations.gov/ — 301 — 165 B — 62 ms — h2https://www.regulations.gov/www.regulations.gov/ https://www.regulations.gov/ — 200 — 2.2 KiB — 111 ms — h2https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=GSAdap.digitalgov.gov/Universal-Federa... https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=GSA — 200 — 9.4 KiB — 19 ms — h3https://www.regulations.gov/assets/vendor-bb6bfc6158a46fd7d6f80ccb8809d8ca.csswww.regulations.gov/assets/vendor-b... https://www.regulations.gov/assets/vendor-bb6bfc6158a46fd7d6f80ccb8809d8ca.css — 200 — 2.7 KiB — 7 ms — h2https://www.regulations.gov/assets/regs-gov-405cc8c56ee6923fac0473c5f03f66bb.csswww.regulations.gov/assets/regs-gov... https://www.regulations.gov/assets/regs-gov-405cc8c56ee6923fac0473c5f03f66bb.css — 200 — 37.8 KiB — 70 ms — h2https://www.regulations.gov/assets/vendor-cfd977eb9899d84134696b34547ee0a5.jswww.regulations.gov/assets/vendor-c... https://www.regulations.gov/assets/vendor-cfd977eb9899d84134696b34547ee0a5.js — 200 — 972.5 KiB — 95 ms — h2https://www.regulations.gov/assets/chunk.27.a5488a95adbaf3318aed.jswww.regulations.gov/assets/chunk.27... https://www.regulations.gov/assets/chunk.27.a5488a95adbaf3318aed.js — 200 — 211.9 KiB — 91 ms — h2https://www.regulations.gov/assets/chunk.143.f0f3e2a6910cb56061ad.jswww.regulations.gov/assets/chunk.14... https://www.regulations.gov/assets/chunk.143.f0f3e2a6910cb56061ad.js — 200 — 4.3 KiB — 10 ms — h2https://www.regulations.gov/assets/regs-gov-f56dc086009a24540298007d820624c9.jswww.regulations.gov/assets/regs-gov... https://www.regulations.gov/assets/regs-gov-f56dc086009a24540298007d820624c9.js — 200 — 262.8 KiB — 95 ms — h2https://dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.jsdap.digitalgov.gov/web-vitals/dist/... https://dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js — 200 — 4.5 KiB — 8 ms — h3https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4Lwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L — 200 — 147.3 KiB — 88 ms — h2https://api.regulations.gov/v4/agenciesapi.regulations.gov/v4/agencies https://api.regulations.gov/v4/agencies — 204 — 0 B — 414 ms — h2https://www.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L&gtm=45je64k0h1v9131934939za200zd9131934939&_p=1776887887727&gcd=13l3l3l3l1l1&npa=0&dma=0&are=1&cid=2050719777.1776887888&frm=0&pscdl=noapi&rcb=9&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115616986~115938466~115938469~117266400~117512542&dl=https%3A%2F%2Fregulations.gov%2F&dt=Regulations.gov&dr=&sid=1776887888&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.agency=GSA&ep.subagency=REGULATIONS.GOV&ep.site_topic=unspecified%3Aregulations.gov&ep.site_platform=unspecified%3Aregulations.gov&ep.script_source=https%3A%2F%2Fdap.digitalgov.gov%2Funiversal-federated-analytics-min.js&ep.version=20250702%20v8.7%20-%20ga4&ep.protocol=https%3A&ep.using_parallel_tracker=no&ep.hostname_dimension=regulations.gov&tfd=745www.google-analytics.com/g/collect?... https://www.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L&gtm=45je64k0h1v9131934939za200zd9131934939&_p=1776887887727&gcd=13l3l3l3l1l1&npa=0&dma=0&are=1&cid=2050719777.1776887888&frm=0&pscdl=noapi&rcb=9&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115616986~115938466~115938469~117266400~117512542&dl=https%3A%2F%2Fregulations.gov%2F&dt=Regulations.gov&dr=&sid=1776887888&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.agency=GSA&ep.subagency=REGULATIONS.GOV&ep.site_topic=unspecified%3Aregulations.gov&ep.site_platform=unspecified%3Aregulations.gov&ep.script_source=https%3A%2F%2Fdap.digitalgov.gov%2Funiversal-federated-analytics-min.js&ep.version=20250702%20v8.7%20-%20ga4&ep.protocol=https%3A&ep.using_parallel_tracker=no&ep.hostname_dimension=regulations.gov&tfd=745 — 204 — 552 B — 33 ms — h2https://www.regulations.gov/assets/images/favicon.icowww.regulations.gov/assets/images/f... https://www.regulations.gov/assets/images/favicon.ico — 200 — 3.3 KiB — 10 ms — h2https://api.regulations.gov/v4/agenciesapi.regulations.gov/v4/agencies https://api.regulations.gov/v4/agencies — 200 — 89.3 KiB — 294 ms — h2https://d1isnucjfhyio4.cloudfront.net/banner.mdd1isnucjfhyio4.cloudfront.net/banne... https://d1isnucjfhyio4.cloudfront.net/banner.md — 200 — 0 B — 245 ms — h2https://d1isnucjfhyio4.cloudfront.net/banner.mdd1isnucjfhyio4.cloudfront.net/banne... https://d1isnucjfhyio4.cloudfront.net/banner.md — 200 — 470 B — 32 ms — h2https://www.regulations.gov/assets/images/hero-background.svgwww.regulations.gov/assets/images/h... https://www.regulations.gov/assets/images/hero-background.svg — 200 — 1.2 KiB — 20 ms — h2https://www.regulations.gov/assets/images/icon-user-interfaces.svgwww.regulations.gov/assets/images/i... https://www.regulations.gov/assets/images/icon-user-interfaces.svg — 200 — 3.0 KiB — 46 ms — h2https://www.regulations.gov/assets/images/ic_fire_gray_24px.svgwww.regulations.gov/assets/images/i... https://www.regulations.gov/assets/images/ic_fire_gray_24px.svg — 200 — 21.7 KiB — 51 ms — h2https://www.regulations.gov/assets/images/regs_navigation_icon.svgwww.regulations.gov/assets/images/r... https://www.regulations.gov/assets/images/regs_navigation_icon.svg — 200 — 1.0 KiB — 37 ms — h2https://api.regulations.gov/v4/whats-trending?filter%5BnumberOfDays%5D=7api.regulations.gov/v4/whats-trendi... https://api.regulations.gov/v4/whats-trending?filter%5BnumberOfDays%5D=7 — 204 — 0 B — 150 ms — h2https://api.regulations.gov/v4/agenciesapi.regulations.gov/v4/agencies https://api.regulations.gov/v4/agencies — 200 — 89.3 KiB — 153 ms — h2https://api.regulations.gov/v4/aggregations/commentEndDateapi.regulations.gov/v4/aggregations... https://api.regulations.gov/v4/aggregations/commentEndDate — 204 — 0 B — 146 ms — h2https://api.regulations.gov/v4/aggregations/postedDateapi.regulations.gov/v4/aggregations... https://api.regulations.gov/v4/aggregations/postedDate — 204 — 0 B — 218 ms — h2https://api.regulations.gov/v4/docket-aggregations/priorityCategoryapi.regulations.gov/v4/docket-aggre... https://api.regulations.gov/v4/docket-aggregations/priorityCategory — 204 — 0 B — 140 ms — h2https://api.regulations.gov/v4/docket-aggregations/eo13771Designationapi.regulations.gov/v4/docket-aggre... https://api.regulations.gov/v4/docket-aggregations/eo13771Designation — 204 — 0 B — 218 ms — h2https://api.regulations.gov/v4/docket-aggregations/majorapi.regulations.gov/v4/docket-aggre... https://api.regulations.gov/v4/docket-aggregations/major — 204 — 0 B — 218 ms — h2https://www.google-analytics.com/analytics.jswww.google-analytics.com/analytics.... https://www.google-analytics.com/analytics.js — 200 — 20.8 KiB — 7 ms — h2https://www.regulations.gov/assets/images/usa-flag_16px-1e69fdaf725ecab29f53bf3c65714297.pngwww.regulations.gov/assets/images/u... https://www.regulations.gov/assets/images/usa-flag_16px-1e69fdaf725ecab29f53bf3c65714297.png — 200 — 14.8 KiB — 13 ms — h2
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.8 s LCP 2.6 shttps://regulations.gov// https://regulations.gov/ — 301 — 165 B — 62 ms — h2https://www.regulations.gov/www.regulations.gov/ https://www.regulations.gov/ — 200 — 2.2 KiB — 111 ms — h2https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=GSAdap.digitalgov.gov/Universal-Federa... https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=GSA — 200 — 9.4 KiB — 19 ms — h3https://www.regulations.gov/assets/vendor-bb6bfc6158a46fd7d6f80ccb8809d8ca.csswww.regulations.gov/assets/vendor-b... https://www.regulations.gov/assets/vendor-bb6bfc6158a46fd7d6f80ccb8809d8ca.css — 200 — 2.7 KiB — 7 ms — h2https://www.regulations.gov/assets/regs-gov-405cc8c56ee6923fac0473c5f03f66bb.csswww.regulations.gov/assets/regs-gov... https://www.regulations.gov/assets/regs-gov-405cc8c56ee6923fac0473c5f03f66bb.css — 200 — 37.8 KiB — 70 ms — h2https://www.regulations.gov/assets/vendor-cfd977eb9899d84134696b34547ee0a5.jswww.regulations.gov/assets/vendor-c... https://www.regulations.gov/assets/vendor-cfd977eb9899d84134696b34547ee0a5.js — 200 — 972.5 KiB — 95 ms — h2https://www.regulations.gov/assets/chunk.27.a5488a95adbaf3318aed.jswww.regulations.gov/assets/chunk.27... https://www.regulations.gov/assets/chunk.27.a5488a95adbaf3318aed.js — 200 — 211.9 KiB — 91 ms — h2https://www.regulations.gov/assets/chunk.143.f0f3e2a6910cb56061ad.jswww.regulations.gov/assets/chunk.14... https://www.regulations.gov/assets/chunk.143.f0f3e2a6910cb56061ad.js — 200 — 4.3 KiB — 10 ms — h2https://www.regulations.gov/assets/regs-gov-f56dc086009a24540298007d820624c9.jswww.regulations.gov/assets/regs-gov... https://www.regulations.gov/assets/regs-gov-f56dc086009a24540298007d820624c9.js — 200 — 262.8 KiB — 95 ms — h2https://dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.jsdap.digitalgov.gov/web-vitals/dist/... https://dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js — 200 — 4.5 KiB — 8 ms — h3https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4Lwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L — 200 — 147.3 KiB — 88 ms — h2https://api.regulations.gov/v4/agenciesapi.regulations.gov/v4/agencies https://api.regulations.gov/v4/agencies — 204 — 0 B — 414 ms — h2https://www.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L&gtm=45je64k0h1v9131934939za200zd9131934939&_p=1776887887727&gcd=13l3l3l3l1l1&npa=0&dma=0&are=1&cid=2050719777.1776887888&frm=0&pscdl=noapi&rcb=9&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115616986~115938466~115938469~117266400~117512542&dl=https%3A%2F%2Fregulations.gov%2F&dt=Regulations.gov&dr=&sid=1776887888&sct=1&seg=0&_tu=wA&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.agency=GSA&ep.subagency=REGULATIONS.GOV&ep.site_topic=unspecified%3Aregulations.gov&ep.site_platform=unspecified%3Aregulations.gov&ep.script_source=https%3A%2F%2Fdap.digitalgov.gov%2Funiversal-federated-analytics-min.js&ep.version=20250702%20v8.7%20-%20ga4&ep.protocol=https%3A&ep.using_parallel_tracker=no&ep.hostname_dimension=regulations.gov&tfd=745www.google-analytics.com/g/collect?... 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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 852ms · 1533KB · $11/mo
www.regulations.gov
Other
Costly
Execution 557ms
Transfer 973 KB
Unused 37%
Monthly Cost $7/mo
Unattributable
Other
Optional
Execution 87ms
Transfer 0 KB
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 74ms
Transfer 147 KB
Unused 41%
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 71ms
Transfer 150 KB
Unused 43%
Monthly Cost $1/mo
www.regulations.gov
Other
Optional
Execution 62ms
Transfer 263 KB
Unused 44%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • www.regulations.gov adds 557ms and costs ~$7/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

www.regulations.gov takes 557ms 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

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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