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https://regulations.gov

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
5
REVIEW
3
PASS
7
INFO
2

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

Mobile Desktop
36
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.
96
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.

11.62 s

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

13.15 s

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

847 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.

11.62 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.

14.72 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 3 REVIEW 5 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 Execution Cost
Action
3753ms total JS execution
FIX
3753ms total JS execution
Warning::
https://www.regulations.gov/assets/vendor-cfd977eb...: 2140ms CPU time
Warning::
Unattributable: 391ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-CSLL...: 300ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-JGTF...: 287ms CPU time
Info::
https://www.regulations.gov/assets/regs-gov-f56dc0...: 243ms CPU time
Warning::
Third-party scripts: 3753ms (100% of total)

Main Thread Breakdown

Script Evaluation 53% Script Parsing & Compilation 22% Style & Layout 11% Other 11%
ScriptTotalScriptingParse/CompileParty
https://www.regulations.gov/assets/vendor-cfd977eb9899d84134696b34547ee0a5.js2140ms1263ms419ms3rd
Unattributable391ms7ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L300ms243ms53ms3rd
https://www.googletagmanager.com/gtag/js?id=G-JGTFN0MKWK&cx=c&_slc=1287ms230ms55ms3rd
https://www.regulations.gov/assets/regs-gov-f56dc086009a24540298007d820624c9.js243ms71ms173ms3rd
https://www.regulations.gov/assets/chunk.27.a5488a95adbaf3318aed.js115ms1ms113ms3rd
https://dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js111ms104ms2ms3rd
https://www.regulations.gov/99ms4ms1ms3rd
https://www.google-analytics.com/analytics.js66ms53ms7ms3rd
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
42 resources · 2.0 MB · 798 KB savings available
FIX
42 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::
41 third-party resources (100% of weight)
Info::
3 resources over 200KB
42 resources · 2.0 MiB · 41 third-party 1.0 MiB over 1MB target
JavaScript 86% · 1.7 MiB
Other 9% · 187.8 KiB
Image 3% · 65.4 KiB
CSS 2% · 40.5 KiB
Document 0% · 2.4 KiB

~797.5 KiB of savings available

Remove unused JavaScript: 797.5 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, 42 requests
REVIEW
2.0 MB transferred, 42 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::
42 HTTP requests
Info::
Estimated 0.43 g CO2 per page load
2.0 MB / 2.4 MB budget
2.0 MB transferred
42 requests
0.43 g CO2 per page load
JavaScript 1.7 MiB 86%
Other 187.3 KiB 9%
Images 62.1 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
8 images, 0 KB saveable
REVIEW
8 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/regulati... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
8 images 62 KB
0 oversized -0 KB
8 legacy format
2 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

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
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
42 requests over 2451ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s FCP 11.6 s LCP 13.2 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 — 219 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 — 121 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 — 423 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 — 431 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 — 422 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 — 449 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 — 448 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 — 470 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 — 64 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 — 65 ms — h2https://www.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L&gtm=45je64k0v9131934939za200zd9131934939&_p=1776887870803&gcd=13l3l3l3l1l1&npa=0&dma=0&are=1&cid=786670697.1776887871&frm=0&pscdl=noapi&rcb=11&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938469~117266401~117512542~118463262&dl=https%3A%2F%2Fregulations.gov%2F&dt=Regulations.gov&dr=&sid=1776887870&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=577www.google-analytics.com/g/collect?... https://www.google-analytics.com/g/collect?v=2&tid=G-CSLL4ZEK4L&gtm=45je64k0v9131934939za200zd9131934939&_p=1776887870803&gcd=13l3l3l3l1l1&npa=0&dma=0&are=1&cid=786670697.1776887871&frm=0&pscdl=noapi&rcb=11&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938469~117266401~117512542~118463262&dl=https%3A%2F%2Fregulations.gov%2F&dt=Regulations.gov&dr=&sid=1776887870&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=577 — 204 — 552 B — 34 ms — h2https://api.regulations.gov/v4/agenciesapi.regulations.gov/v4/agencies https://api.regulations.gov/v4/agencies — 204 — 0 B — 387 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 — 61 ms — h2https://api.regulations.gov/v4/agenciesapi.regulations.gov/v4/agencies https://api.regulations.gov/v4/agencies — 200 — 89.3 KiB — 262 ms — h2https://d1isnucjfhyio4.cloudfront.net/banner.mdd1isnucjfhyio4.cloudfront.net/banne... https://d1isnucjfhyio4.cloudfront.net/banner.md — 200 — 0 B — 142 ms — h2https://d1isnucjfhyio4.cloudfront.net/banner.mdd1isnucjfhyio4.cloudfront.net/banne... https://d1isnucjfhyio4.cloudfront.net/banner.md — 200 — 468 B — 26 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 — 76 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 — 140 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 — 77 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 — 132 ms — h2https://api.regulations.gov/v4/agenciesapi.regulations.gov/v4/agencies https://api.regulations.gov/v4/agencies — 200 — 89.3 KiB — 209 ms — h2https://api.regulations.gov/v4/aggregations/commentEndDateapi.regulations.gov/v4/aggregations... https://api.regulations.gov/v4/aggregations/commentEndDate — 204 — 0 B — 129 ms — h2https://api.regulations.gov/v4/aggregations/postedDateapi.regulations.gov/v4/aggregations... https://api.regulations.gov/v4/aggregations/postedDate — 204 — 0 B — 136 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 — 136 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 — 135 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 — 133 ms — h2https://www.google-analytics.com/analytics.jswww.google-analytics.com/analytics.... https://www.google-analytics.com/analytics.js — 200 — 20.8 KiB — 5 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 — 99 ms — h2https://www.regulations.gov/assets/images/icon-doge-form.svgwww.regulations.gov/assets/images/i... https://www.regulations.gov/assets/images/icon-doge-form.svg — 200 — 4.8 KiB — 102 ms — h2
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s FCP 11.6 s LCP 13.2 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 — 219 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 — 121 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 — 423 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 — 431 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 — 422 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 — 449 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 — 448 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 — 470 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 — 64 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 — 65 ms — 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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 3753ms · 1772KB · $50/mo
www.regulations.gov
Other
Costly
Execution 2140ms
Transfer 973 KB
Unused 37%
Monthly Cost $28/mo
Unattributable
Other
Costly
Execution 391ms
Transfer 0 KB
Monthly Cost $5/mo
Google Tag Manager
Tag Manager
Costly
Execution 300ms
Transfer 147 KB
Unused 41%
Monthly Cost $4/mo
Google Tag Manager
Tag Manager
Costly
Execution 287ms
Transfer 150 KB
Unused 43%
Monthly Cost $4/mo
www.regulations.gov
Other
Costly
Execution 243ms
Transfer 263 KB
Unused 44%
Monthly Cost $3/mo
www.regulations.gov
Other
Optional
Execution 115ms
Transfer 212 KB
Unused 98%
Monthly Cost $2/mo
dap.digitalgov.gov
Other
Optional
Execution 111ms
Transfer 4 KB
Monthly Cost $1/mo
www.regulations.gov
Other
Optional
Execution 99ms
Transfer 2 KB
Monthly Cost $1/mo
Google Analytics
Analytics
Optional
Execution 66ms
Transfer 21 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • www.regulations.gov adds 2140ms and costs ~$28/month
  • Unattributable adds 391ms and costs ~$5/month
  • Google Tag Manager adds 300ms and costs ~$4/month
  • Google Tag Manager adds 287ms and costs ~$4/month
  • www.regulations.gov adds 243ms and costs ~$3/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 2140ms 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

Unattributable takes 391ms 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

Google Tag Manager takes 300ms 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

Google Tag Manager takes 287ms 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.regulations.gov takes 243ms 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

98% of www.regulations.gov'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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