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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
85
GRADE
B
FIX
1
REVIEW
6
PASS
8
INFO
2

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

Mobile Desktop
64
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
97
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.
100
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.

2.99 s

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

8.88 s

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

254 ms

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

0.001

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

3.39 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.

9.06 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
8 PASS 6 REVIEW 1 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 (1.2 MiB of 1.2 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
B
Page Weight Budget
1.2 MB transferred, 101 requests
REVIEW
1.2 MB transferred, 101 requests
Info::
Page weighs 3.1 MB (1.2 MB transferred)
Warning::
JavaScript is 582 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 582 KB
Info::
Fonts are 316 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 316 KB
Warning::
101 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.25 g CO2 per page load
1.2 MB / 2.4 MB budget
1.2 MB transferred
101 requests
0.25 g CO2 per page load
JavaScript 582.4 KiB 48%
Fonts 315.5 KiB 26%
Images 177.1 KiB 14%
Other 97.4 KiB 8%
HTML 21.7 KiB 2%
CSS 20.7 KiB 2%
Other 4.8 KiB 0%
Other 2.6 KiB 0%
Other 991 B 0%
0 2.4 MB 4.9 MB
Under budget

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

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

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

C
JS Execution Cost
Action
1927ms total JS execution
REVIEW
1927ms total JS execution
Warning::
https://www.scotusblog.com/_next/static/chunks/9dc...: 572ms CPU time
Warning::
https://cdn.tinypass.com/api/tinypass.min.js: 322ms CPU time
Warning::
Unattributable: 298ms CPU time
Warning::
https://www.scotusblog.com/: 258ms CPU time
Info::
https://www.scotusblog.com/_next/static/chunks/777...: 230ms CPU time
Warning::
Third-party scripts: 1927ms (100% of total)

Main Thread Breakdown

Script Evaluation 58% Other 23% Script Parsing & Compilation 9% Style & Layout 7%
ScriptTotalScriptingParse/CompileParty
https://www.scotusblog.com/_next/static/chunks/9dc88527b93ac6dc.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz572ms501ms15ms3rd
https://cdn.tinypass.com/api/tinypass.min.js322ms264ms33ms3rd
Unattributable298ms34ms0ms3rd
https://www.scotusblog.com/258ms10ms28ms3rd
https://www.scotusblog.com/_next/static/chunks/777480f98c775904.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz230ms131ms9ms3rd
https://www.googletagmanager.com/gtag/js?id=G-J1WT1Z8MXT171ms137ms33ms3rd
https://cdn.parsely.com/keys/scotusblog.com/p.js77ms69ms3ms3rd
C
JS Bundles
Action
28 scripts, 218 KB unused
REVIEW
28 scripts, 218 KB unused
Warning::
https://cdn.tinypass.com/api/tinypass.min.js: 83 KB unused (63%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-J1WT...: 63 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.scotusblog.com/_next/static/chunks/053...: 30 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.scotusblog.com/_next/static/chunks/9dc...: 21 KB unused (31%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.scotusblog.com/_next/static/chunks/1d2...: 21 KB unused (88%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 218 KB
218 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cdn.tinypass.com/api/tinypass.min.js133 KB83 KB (63%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-J1WT1Z8MXT144 KB63 KB (43%)✓3rd
https://www.scotusblog.com/_next/static/chunks/0536a5fa2645bbb6.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz30 KB30 KB (100%)✓3rd
https://www.scotusblog.com/_next/static/chunks/9dc88527b93ac6dc.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz70 KB21 KB (31%)✓3rd
https://www.scotusblog.com/_next/static/chunks/1d2f96c7c16d2616.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz24 KB21 KB (88%)✓3rd
https://www.scotusblog.com/_next/static/chunks/bb666de8eadadf58.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz3 KB—✓3rd
https://www.scotusblog.com/_next/static/chunks/35a7ae7d77639031.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz8 KB—✓3rd
https://www.scotusblog.com/_next/static/chunks/54a3ebeaa7b411a9.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz15 KB—✓3rd
https://www.scotusblog.com/_next/static/chunks/turbopack-ae7ea46057aa5635.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz5 KB—✓3rd
https://www.scotusblog.com/_next/static/chunks/247aa2cc1dae3564.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz11 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

B
Page Weight Inventory
101 resources · 1.2 MB · 218 KB savings available
REVIEW
101 resources · 1.2 MB · 218 KB savings available
Warning::
Page weight 199 KB over 1MB target
Got: 1.2 MB Expected: ≤ 1 MB
Info::
~218 KB of savings available
Warning::
100 third-party resources (100% of weight)
101 resources · 1.2 MiB · 100 third-party 199.2 KiB over 1MB target
JavaScript 48% · 582.4 KiB
Font 26% · 315.5 KiB
Image 15% · 179.2 KiB
Other 8% · 103.4 KiB
Document 2% · 21.9 KiB
CSS 2% · 20.7 KiB

~217.5 KiB of savings available

Remove unused JavaScript: 217.5 KiB
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

B
HTTP Caching
public, max-age=0, must-revalidate
REVIEW
public, max-age=0, must-revalidate
Info::
Cache-Control header is set
Got: public, max-age=0, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

public, max-age=0, must-revalidate

DirectiveValueMeaning
public—Any cache may store this response
max-age0Cache for 0 seconds
must-revalidate—Must recheck with server after expiry
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
Image Optimization
6 images, 0 KB saveable
PASS
6 images, 0 KB saveable
Info::
All images are well-optimized
6 images 177 KB
0 oversized -0 KB
2 legacy format
0 missing dimensions CLS risk
A+
Font Loading
7 fonts (316 KB)
PASS
7 fonts (316 KB)
Info::
7 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

7

316 KB total

Render-blocking

0

of 7

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 3.0 s LCP 8.9 shttps://www.scotusblog.com/_next/static/media/83afe278b6a6bb3c-s.p.3a6ba036.woff283afe278b6a6bb3c-s.p.3a... https://www.scotusblog.com/_next/static/media/83afe278b6a6bb3c-s.p.3a6ba036.woff2 — 47.6 KiB — 27 ms — font-display: swaphttps://www.scotusblog.com/_next/static/media/99e609270109b47d-s.p.64b9304e.woff299e609270109b47d-s.p.64... https://www.scotusblog.com/_next/static/media/99e609270109b47d-s.p.64b9304e.woff2 — 10.0 KiB — 82 ms — font-display: swaphttps://www.scotusblog.com/_next/static/media/f7aa21714c1c53f8-s.p.e3544bb0.woff2f7aa21714c1c53f8-s.p.e3... https://www.scotusblog.com/_next/static/media/f7aa21714c1c53f8-s.p.e3544bb0.woff2 — 19.9 KiB — 28 ms — font-display: swaphttps://www.scotusblog.com/fonts/century_supra_b_regular.woff2century_supra_b_regular... https://www.scotusblog.com/fonts/century_supra_b_regular.woff2 — 74.6 KiB — 38 ms — font-display: swaphttps://www.scotusblog.com/fonts/century_supra_b_italic.woff2century_supra_b_italic.... https://www.scotusblog.com/fonts/century_supra_b_italic.woff2 — 44.2 KiB — 33 ms — font-display: swaphttps://www.scotusblog.com/fonts/century_supra_a_regular.woff2century_supra_a_regular... https://www.scotusblog.com/fonts/century_supra_a_regular.woff2 — 71.4 KiB — 45 ms — font-display: swaphttps://www.scotusblog.com/fonts/century_supra_a_caps_regular.woff2century_supra_a_caps_re... https://www.scotusblog.com/fonts/century_supra_a_caps_regular.woff2 — 47.7 KiB — 34 ms — font-display: swap
83afe278b6a6bb3c-s.p.3a... woff2 swap
Size 48 KB
Load time 27 ms
Start 181 ms
Risk FOUT — text flashes from fallback to web font
99e609270109b47d-s.p.64... woff2 swap
Size 10 KB
Load time 82 ms
Start 181 ms
Risk FOUT — text flashes from fallback to web font
f7aa21714c1c53f8-s.p.e3... woff2 swap
Size 20 KB
Load time 28 ms
Start 181 ms
Risk FOUT — text flashes from fallback to web font
century_supra_b_regular... woff2 swap
Size 75 KB
Load time 38 ms
Start 429 ms
Risk FOUT — text flashes from fallback to web font
century_supra_b_italic.... woff2 swap
Size 44 KB
Load time 33 ms
Start 430 ms
Risk FOUT — text flashes from fallback to web font
century_supra_a_regular... woff2 swap
Size 71 KB
Load time 45 ms
Start 430 ms
Risk FOUT — text flashes from fallback to web font
century_supra_a_caps_re... woff2 swap
Size 48 KB
Load time 34 ms
Start 430 ms
Risk FOUT — text flashes from fallback to web font
Optimization checklist
  • Preload critical fonts (priority=high)
  • Use woff2 format for all fonts
  • Set font-display to swap, optional, or fallback
  • Subset large fonts (≤100 KB each)
A+
Resource 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
11 hints, 0 missing preconnects
PASS
11 hints, 0 missing preconnects
Info::
Page uses 11 resource hint(s)

Current Resource Hints

preconnect
4
preload
7
dns-prefetch
—
prefetch
—

11 resource hints configured

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
101 requests over 3890ms
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 3.0 s LCP 8.9 shttps://scotusblog.com// https://scotusblog.com/ — 301 — 201 B — 72 ms — h2https://www.scotusblog.com/www.scotusblog.com/ https://www.scotusblog.com/ — 200 — 21.7 KiB — 104 ms — h2https://www.scotusblog.com/_next/static/media/83afe278b6a6bb3c-s.p.3a6ba036.woff2www.scotusblog.com/_next/static/med... https://www.scotusblog.com/_next/static/media/83afe278b6a6bb3c-s.p.3a6ba036.woff2 — 200 — 47.6 KiB — 27 ms — h2https://www.scotusblog.com/_next/static/media/99e609270109b47d-s.p.64b9304e.woff2www.scotusblog.com/_next/static/med... https://www.scotusblog.com/_next/static/media/99e609270109b47d-s.p.64b9304e.woff2 — 200 — 10.0 KiB — 82 ms — h2https://www.scotusblog.com/_next/static/media/f7aa21714c1c53f8-s.p.e3544bb0.woff2www.scotusblog.com/_next/static/med... https://www.scotusblog.com/_next/static/media/f7aa21714c1c53f8-s.p.e3544bb0.woff2 — 200 — 19.9 KiB — 28 ms — h2https://www.scotusblog.com/_next/static/chunks/f583563d0e9b26aa.css?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tzwww.scotusblog.com/_next/static/chu... https://www.scotusblog.com/_next/static/chunks/f583563d0e9b26aa.css?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz — 200 — 19.4 KiB — 28 ms — h2https://www.scotusblog.com/_next/static/chunks/a151745fdc4ef4b9.css?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tzwww.scotusblog.com/_next/static/chu... https://www.scotusblog.com/_next/static/chunks/a151745fdc4ef4b9.css?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz — 200 — 1.3 KiB — 35 ms — h2https://www.googletagmanager.com/gtag/js?id=G-J1WT1Z8MXTwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-J1WT1Z8MXT — 200 — 144.4 KiB — 200 ms — h2https://cdn.parsely.com/keys/scotusblog.com/p.jscdn.parsely.com/keys/scotusblog.com... https://cdn.parsely.com/keys/scotusblog.com/p.js — 200 — 18.3 KiB — 41 ms — h2https://experience.tinypass.com/xbuilder/experience/load?aid=lkcUIpwspuexperience.tinypass.com/xbuilder/ex... https://experience.tinypass.com/xbuilder/experience/load?aid=lkcUIpwspu — 200 — 1.5 KiB — 104 ms — h3https://www.scotusblog.com/_next/static/chunks/b5b3d36570ef36dd.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tzwww.scotusblog.com/_next/static/chu... https://www.scotusblog.com/_next/static/chunks/b5b3d36570ef36dd.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz — 200 — 2.7 KiB — 33 ms — h2https://www.scotusblog.com/_next/static/chunks/236f7e5abd6f09ff.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tzwww.scotusblog.com/_next/static/chu... https://www.scotusblog.com/_next/static/chunks/236f7e5abd6f09ff.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz — 200 — 7.6 KiB — 54 ms — h2https://www.scotusblog.com/_next/static/chunks/777480f98c775904.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tzwww.scotusblog.com/_next/static/chu... https://www.scotusblog.com/_next/static/chunks/777480f98c775904.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz — 200 — 23.0 KiB — 46 ms — h2https://www.scotusblog.com/_next/static/chunks/9dc88527b93ac6dc.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tzwww.scotusblog.com/_next/static/chu... https://www.scotusblog.com/_next/static/chunks/9dc88527b93ac6dc.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz — 200 — 69.7 KiB — 91 ms — h2https://www.scotusblog.com/_next/static/chunks/54a3ebeaa7b411a9.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tzwww.scotusblog.com/_next/static/chu... https://www.scotusblog.com/_next/static/chunks/54a3ebeaa7b411a9.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz — 200 — 15.5 KiB — 62 ms — h2https://www.scotusblog.com/_next/static/chunks/turbopack-ae7ea46057aa5635.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tzwww.scotusblog.com/_next/static/chu... https://www.scotusblog.com/_next/static/chunks/turbopack-ae7ea46057aa5635.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz — 200 — 4.7 KiB — 60 ms — h2https://www.scotusblog.com/_next/static/chunks/247aa2cc1dae3564.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tzwww.scotusblog.com/_next/static/chu... https://www.scotusblog.com/_next/static/chunks/247aa2cc1dae3564.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz — 200 — 10.7 KiB — 47 ms — h2https://www.scotusblog.com/_next/static/chunks/14d1a051c44192b9.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tzwww.scotusblog.com/_next/static/chu... https://www.scotusblog.com/_next/static/chunks/14d1a051c44192b9.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz — 200 — 11.9 KiB — 50 ms — h2https://www.scotusblog.com/_next/static/chunks/df1dbf18b2eaa8eb.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tzwww.scotusblog.com/_next/static/chu... https://www.scotusblog.com/_next/static/chunks/df1dbf18b2eaa8eb.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tz — 200 — 12.3 KiB — 40 ms — h2https://www.scotusblog.com/_next/static/chunks/0536a5fa2645bbb6.js?dpl=dpl_3U9UeduiKSNnrKv8aABL44eq75tzwww.scotusblog.com/_next/static/chu... 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h2https://buy.tinypass.com/api/v3/anon/assets/sdk-runtime-config.js?aid=lkcUIpwspubuy.tinypass.com/api/v3/anon/assets... https://buy.tinypass.com/api/v3/anon/assets/sdk-runtime-config.js?aid=lkcUIpwspu — 200 — 563 B — 76 ms — h3
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 1927ms · 410KB · €21/mo
www.scotusblog.com
Other
Costly
Execution 572ms
Transfer 70 KB
Unused 31%
Monthly Cost €6/mo
cdn.tinypass.com
Other
Costly
Execution 322ms
Transfer 133 KB
Unused 63%
Monthly Cost €4/mo
Unattributable
Other
Costly
Execution 298ms
Transfer 0 KB
Monthly Cost €3/mo
www.scotusblog.com
Other
Costly
Execution 258ms
Transfer 22 KB
Monthly Cost €3/mo
www.scotusblog.com
Other
Costly
Execution 230ms
Transfer 23 KB
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 171ms
Transfer 144 KB
Unused 43%
Monthly Cost €2/mo
cdn.parsely.com
Other
Optional
Execution 77ms
Transfer 18 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • www.scotusblog.com adds 572ms and costs ~€6/month
  • cdn.tinypass.com adds 322ms and costs ~€4/month
  • Unattributable adds 298ms and costs ~€3/month
  • www.scotusblog.com adds 258ms and costs ~€3/month
  • www.scotusblog.com adds 230ms and costs ~€2/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.scotusblog.com takes 572ms 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

cdn.tinypass.com takes 322ms 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

63% of cdn.tinypass.com'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

Unattributable takes 298ms 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.scotusblog.com takes 258ms 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.scotusblog.com takes 230ms 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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