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https://gumroad.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
84
GRADE
B
FIX
2
REVIEW
3
PASS
10
INFO
2

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

Mobile Desktop
77
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
80
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.

1.93 s

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

3.79 s

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

388 ms

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

0.073

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

1.93 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.

5.40 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
10 PASS 3 REVIEW 2 FIX
D
Third-Party Impact
Action
96% third-party, 0 ms blocking
FIX
96% third-party, 0 ms blocking
Warning::
Third-party code accounts for 96% of page weight (552.8 KiB of 577.3 KiB)
Info::
Third-party blocking time is low (0 ms)
96%
First-party Third-party
F
JS Execution Cost
Action
6131ms total JS execution
FIX
6131ms total JS execution
Warning::
https://unpkg.com/@lottiefiles/lottie-player@lates...: 2464ms CPU time
Warning::
https://gumroad.com/: 1409ms CPU time
Warning::
https://assets.gumroad.com/assets/hero_parallax-27...: 1113ms CPU time
Warning::
Unattributable: 731ms CPU time
Info::
https://connect.facebook.net/en_US/bundle/sdk.js/: 185ms CPU time
Warning::
Third-party scripts: 4617ms (75% of total)

Main Thread Breakdown

Script Evaluation 49% Other 26% Style & Layout 15% Rendering 6%
ScriptTotalScriptingParse/CompileParty
https://unpkg.com/@lottiefiles/lottie-player@latest/dist/lottie-player.js2464ms2389ms60ms3rd
https://gumroad.com/1409ms37ms4ms1st
https://assets.gumroad.com/assets/hero_parallax-27bf489656137e512ac46d75adf3668a1d6d58c4cf9c1f846f62722e0d7385ad.js1113ms240ms1ms3rd
Unattributable731ms45ms0ms3rd
https://connect.facebook.net/en_US/bundle/sdk.js/185ms134ms49ms3rd
https://gumroad.com/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js105ms79ms3ms1st
https://assets.gumroad.com/assets/application-cbf244e9109e70d7b04497041636f00173a1e588f9b879b3a3ef11f8dfb86e5c.js68ms46ms17ms3rd
https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312451656ms31ms7ms3rd
C
Image Optimization
Action
21 images, 0 KB saveable
REVIEW
21 images, 0 KB saveable
Warning::
https://assets.gumroad.com/assets/about/make-your-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.gumroad.com/assets/about/coin-4-810... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.gumroad.com/assets/about/blog-post-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.gumroad.com/assets/about/new-sale-2... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.gumroad.com/assets/about/side-proje... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.gumroad.com/assets/about/coin-1-900... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.gumroad.com/assets/about/coin-2-93b... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.gumroad.com/assets/about/coin-3-720... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.gumroad.com/assets/about/sell-anywh... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.gumroad.com/assets/about/coin-5-8ca... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.gumroad.com/assets/about/ukulele-64... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.gumroad.com/assets/about/side-proje... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.gumroad.com/assets/logo-0bc69a5fbe2... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.gumroad.com/assets/about/blog-post-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
21 images 185 KB
0 oversized -0 KB
14 legacy format
15 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

Performance issues directly impact user engagement and conversion rates.

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, 74 KB unused
REVIEW
7 scripts, 74 KB unused
Warning::
https://connect.facebook.net/en_US/bundle/sdk.js/: 49 KB unused (64%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://assets.gumroad.com/assets/application-cbf2...: 25 KB unused (65%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 74 KB
74 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://connect.facebook.net/en_US/bundle/sdk.js/78 KB49 KB (64%)✓3rd
https://assets.gumroad.com/assets/application-cbf244e9109e70d7b04497041636f00173a1e588f9b879b3a3ef11f8dfb86e5c.js38 KB25 KB (65%)✓3rd
https://gumroad.com/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js4 KB—✓1st
https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312451611 KB—✓3rd
https://assets.gumroad.com/assets/hero_parallax-27bf489656137e512ac46d75adf3668a1d6d58c4cf9c1f846f62722e0d7385ad.js1 KB—✓3rd
https://unpkg.com/@lottiefiles/lottie-player@2.0.12/dist/lottie-player.js96 KB—✓3rd
https://connect.facebook.net/en_US/sdk.js5 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

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

max-age=0, private, must-revalidate

DirectiveValueMeaning
max-age0Cache for 0 seconds
private—Only browser cache, not CDN/proxy
must-revalidate—Must recheck with server after expiry
A+
Page Weight Budget
577 KB transferred, 38 requests
PASS
577 KB transferred, 38 requests
Info::
Page weighs 1.8 MB (577 KB transferred)
Info::
38 HTTP requests
Info::
Estimated 0.12 g CO2 per page load
577 KB / 2.4 MB budget
577 KB transferred
38 requests
0.12 g CO2 per page load
JavaScript 233.0 KiB 40%
Images 185.0 KiB 32%
Fonts 99.8 KiB 17%
CSS 28.4 KiB 5%
HTML 18.3 KiB 3%
Other 8.6 KiB 1%
Other 2.2 KiB 0%
Other 2.0 KiB 0%
0 2.4 MB 4.9 MB
Under budget
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
2 fonts (100 KB)
PASS
2 fonts (100 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

100 KB total

Render-blocking

0

of 2

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 FCP 1.9 s LCP 3.8 shttps://assets.gumroad.com/packs/static/e4bac9369f6c1cf16e10.woff2e4bac9369f6c1cf16e10.woff2 https://assets.gumroad.com/packs/static/e4bac9369f6c1cf16e10.woff2 — 49.2 KiB — 55 ms — font-display: swaphttps://assets.gumroad.com/packs/static/cb28e975c9733636c320.woff2cb28e975c9733636c320.woff2 https://assets.gumroad.com/packs/static/cb28e975c9733636c320.woff2 — 50.6 KiB — 68 ms — font-display: swap
e4bac9369f6c1cf16e10.woff2 woff2 swap
Size 49 KB
Load time 55 ms
Start 302 ms
Risk FOUT — text flashes from fallback to web font
cb28e975c9733636c320.woff2 woff2 swap
Size 51 KB
Load time 68 ms
Start 303 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
6 hints, 0 missing preconnects
PASS
6 hints, 0 missing preconnects
Info::
Page uses 6 resource hint(s)

Current Resource Hints

preconnect
—
preload
3
dns-prefetch
3
prefetch
—

6 resource hints configured

A
Page Weight Inventory
38 resources · 577 KB · 74 KB savings available
PASS
38 resources · 577 KB · 74 KB savings available
Info::
Within 1MB page-weight target
Got: 577 KB
Info::
~74 KB of savings available
Warning::
34 third-party resources (96% of weight)
38 resources · 577.3 KiB · 34 third-party Within 1MB page-weight target
JavaScript 40% · 233.0 KiB
Image 32% · 186.7 KiB
Font 17% · 99.8 KiB
CSS 5% · 28.4 KiB
Document 3% · 18.3 KiB
Other 2% · 11.0 KiB

~74.0 KiB of savings available

Remove unused JavaScript: 74.0 KiB
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
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
38 requests over 1048ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 1.9 s LCP 3.8 shttps://gumroad.com// https://gumroad.com/ — 200 — 18.3 KiB — 228 ms — h3https://assets.gumroad.com/packs/css/design-8c4043e8.cssassets.gumroad.com/packs/css/design... https://assets.gumroad.com/packs/css/design-8c4043e8.css — 200 — 28.4 KiB — 63 ms — h3https://assets.gumroad.com/assets/application-cbf244e9109e70d7b04497041636f00173a1e588f9b879b3a3ef11f8dfb86e5c.jsassets.gumroad.com/assets/applicati... https://assets.gumroad.com/assets/application-cbf244e9109e70d7b04497041636f00173a1e588f9b879b3a3ef11f8dfb86e5c.js — 200 — 38.3 KiB — 81 ms — h3https://assets.gumroad.com/assets/about/ukulele-643f3e9ca8a7ff96e21665ea5b1df3e9bf10e30e3e6789c1f030392007f0827c.pngassets.gumroad.com/assets/about/uku... https://assets.gumroad.com/assets/about/ukulele-643f3e9ca8a7ff96e21665ea5b1df3e9bf10e30e3e6789c1f030392007f0827c.png — 200 — 52.5 KiB — 70 ms — h3https://assets.gumroad.com/assets/about/make-your-road-2058f4aa5468ac6060dadbacc5b97dff7a36859b8578e46e52ef37d99c9c5568.svgassets.gumroad.com/assets/about/mak... https://assets.gumroad.com/assets/about/make-your-road-2058f4aa5468ac6060dadbacc5b97dff7a36859b8578e46e52ef37d99c9c5568.svg — 200 — 22.8 KiB — 56 ms — h3https://assets.gumroad.com/assets/about/sell-anywhere-d627e0864a5fb930b899a544a04044f6c87e709892e94162c1ffeec459fbe29b.pngassets.gumroad.com/assets/about/sel... https://assets.gumroad.com/assets/about/sell-anywhere-d627e0864a5fb930b899a544a04044f6c87e709892e94162c1ffeec459fbe29b.png — 200 — 27.1 KiB — 62 ms — h3https://assets.gumroad.com/assets/about/side-project-1-7fd11f86a4c58a3ecd0d0c811c9bc844b3dae38c7a7271e521647652b1b10965.svgassets.gumroad.com/assets/about/sid... https://assets.gumroad.com/assets/about/side-project-1-7fd11f86a4c58a3ecd0d0c811c9bc844b3dae38c7a7271e521647652b1b10965.svg — 200 — 13.6 KiB — 58 ms — h3https://assets.gumroad.com/assets/about/side-project-2-6933c74e039a65520c2861067a2608a94a12101c536012f1c7c61021a47c7dd4.svgassets.gumroad.com/assets/about/sid... https://assets.gumroad.com/assets/about/side-project-2-6933c74e039a65520c2861067a2608a94a12101c536012f1c7c61021a47c7dd4.svg — 200 — 3.8 KiB — 51 ms — h3https://assets.gumroad.com/assets/about/arrowhead-right-4c8385b8414b6b7ea024af50fc672ee495ecb2cc28edeeb783901d023ba499aa.svgassets.gumroad.com/assets/about/arr... https://assets.gumroad.com/assets/about/arrowhead-right-4c8385b8414b6b7ea024af50fc672ee495ecb2cc28edeeb783901d023ba499aa.svg — 200 — 771 B — 41 ms — h3https://assets.gumroad.com/assets/creators/max-full-414237f9dea72994748614bb17b5aa27af55b163ada63f605d4aa481486a8621.pngassets.gumroad.com/assets/creators/... https://assets.gumroad.com/assets/creators/max-full-414237f9dea72994748614bb17b5aa27af55b163ada63f605d4aa481486a8621.png — 200 — 4.4 KiB — 50 ms — h3https://assets.gumroad.com/assets/creators/steph-full-de75d7a12ff19057ab4f29794ae6874659ed7b18e48179928214b0bc9a3c9110.pngassets.gumroad.com/assets/creators/... https://assets.gumroad.com/assets/creators/steph-full-de75d7a12ff19057ab4f29794ae6874659ed7b18e48179928214b0bc9a3c9110.png — 200 — 4.6 KiB — 49 ms — h3https://assets.gumroad.com/assets/creators/dru-full-496e75ff6047e932eb3cfbf44638a5c2b83b05b8ee439cf7f3a7afa9f2d23bf5.pngassets.gumroad.com/assets/creators/... https://assets.gumroad.com/assets/creators/dru-full-496e75ff6047e932eb3cfbf44638a5c2b83b05b8ee439cf7f3a7afa9f2d23bf5.png — 200 — 4.4 KiB — 50 ms — h3https://assets.gumroad.com/assets/creators/daniel-full-9fefe9c47a5f870c6f4a0389f35266593aa2727b749a8b9a0c34b98bac2ee380.pngassets.gumroad.com/assets/creators/... https://assets.gumroad.com/assets/creators/daniel-full-9fefe9c47a5f870c6f4a0389f35266593aa2727b749a8b9a0c34b98bac2ee380.png — 200 — 5.1 KiB — 50 ms — h3https://assets.gumroad.com/assets/logo-0bc69a5fbe2011001b3dba6598e5b597137926af32d7d955ee1ab7ac05fd63d4.svgassets.gumroad.com/assets/logo-0bc6... https://assets.gumroad.com/assets/logo-0bc69a5fbe2011001b3dba6598e5b597137926af32d7d955ee1ab7ac05fd63d4.svg — 200 — 1.3 KiB — 80 ms — h3https://assets.gumroad.com/assets/about/coin-1-900b86390de4f6f0cd6bda6618b44a31a6e0971ce1c598f4ad793302a19970ad.svgassets.gumroad.com/assets/about/coi... https://assets.gumroad.com/assets/about/coin-1-900b86390de4f6f0cd6bda6618b44a31a6e0971ce1c598f4ad793302a19970ad.svg — 200 — 1.7 KiB — 79 ms — h3https://assets.gumroad.com/assets/about/coin-2-93b4c6a1ced616c34caa743dc0097585ba3c52b96b2a9f6f72c70901c6895f3a.svgassets.gumroad.com/assets/about/coi... https://assets.gumroad.com/assets/about/coin-2-93b4c6a1ced616c34caa743dc0097585ba3c52b96b2a9f6f72c70901c6895f3a.svg — 200 — 1.6 KiB — 67 ms — h3https://assets.gumroad.com/assets/about/coin-3-720e0c9f6945039630ec07090143a614014e43d788e379be6ffafbe5f86fe31c.svgassets.gumroad.com/assets/about/coi... https://assets.gumroad.com/assets/about/coin-3-720e0c9f6945039630ec07090143a614014e43d788e379be6ffafbe5f86fe31c.svg — 200 — 1.7 KiB — 72 ms — h3https://assets.gumroad.com/assets/about/coin-4-8106d7fc3defa7992ba9b872525de187219f20a26e17dd9530f21f2ba8511fd9.svgassets.gumroad.com/assets/about/coi... https://assets.gumroad.com/assets/about/coin-4-8106d7fc3defa7992ba9b872525de187219f20a26e17dd9530f21f2ba8511fd9.svg — 200 — 1.6 KiB — 61 ms — h3https://assets.gumroad.com/assets/about/coin-5-8ca4434c469ed3cbc16bb17fdeb924e694f2656bb5fb34ddceb6a0f0167b4c52.svgassets.gumroad.com/assets/about/coi... https://assets.gumroad.com/assets/about/coin-5-8ca4434c469ed3cbc16bb17fdeb924e694f2656bb5fb34ddceb6a0f0167b4c52.svg — 200 — 1.6 KiB — 41 ms — h3https://assets.gumroad.com/packs/static/e4bac9369f6c1cf16e10.woff2assets.gumroad.com/packs/static/e4b... https://assets.gumroad.com/packs/static/e4bac9369f6c1cf16e10.woff2 — 200 — 49.2 KiB — 55 ms — h3https://assets.gumroad.com/packs/static/cb28e975c9733636c320.woff2assets.gumroad.com/packs/static/cb2... https://assets.gumroad.com/packs/static/cb28e975c9733636c320.woff2 — 200 — 50.6 KiB — 68 ms — h3https://assets.gumroad.com/assets/about/blog-post-circle-1-89521af28ff70e2ff038f27b51a25087b1a8e921b9e4528069ea1a89af72ab92.svgassets.gumroad.com/assets/about/blo... https://assets.gumroad.com/assets/about/blog-post-circle-1-89521af28ff70e2ff038f27b51a25087b1a8e921b9e4528069ea1a89af72ab92.svg — 200 — 7.1 KiB — 71 ms — h3https://assets.gumroad.com/assets/about/blog-post-circle-2-7ada62705ab3874d1065ccb31b3bf83e69e8900f32e9bbb20d475931e2016803.svgassets.gumroad.com/assets/about/blo... https://assets.gumroad.com/assets/about/blog-post-circle-2-7ada62705ab3874d1065ccb31b3bf83e69e8900f32e9bbb20d475931e2016803.svg — 200 — 5.9 KiB — 71 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
75% of JavaScript execution is third-party
First-party Third-party 4617ms · 128KB · €24/mo
unpkg
CDN
Costly
Execution 2464ms
Transfer 0 KB
Monthly Cost €13/mo
assets.gumroad.com
Other
Costly
Execution 1113ms
Transfer 1 KB
Monthly Cost €6/mo
Unattributable
Other
Costly
Execution 731ms
Transfer 0 KB
Monthly Cost €4/mo
Facebook Pixel
Advertising
Optional
Execution 185ms
Transfer 78 KB
Unused 64%
Monthly Cost €1/mo
assets.gumroad.com
Other
Optional
Execution 68ms
Transfer 38 KB
Unused 65%
Monthly Cost €0/mo
static.cloudflareinsights.com
Other
Optional
Execution 56ms
Transfer 11 KB
Monthly Cost €0/mo

These scripts may cost more than they're worth

  • unpkg adds 2464ms and costs ~€13/month
  • assets.gumroad.com adds 1113ms and costs ~€6/month
  • Unattributable adds 731ms and costs ~€4/month

75% 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

unpkg takes 2464ms 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

assets.gumroad.com takes 1113ms 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 731ms 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

64% of Facebook Pixel'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

65% of assets.gumroad.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

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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