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https://gumroad.com

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
84
GRADE
B
FIX
1
REVIEW
4
PASS
8
INFO
2

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

Mobile Desktop
98
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
86
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.

901 ms

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

901 ms

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

11 ms

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

0.030

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

901 ms

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

970 ms

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
8 PASS 4 REVIEW 1 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 (552.4 KiB of 577.0 KiB)
Info::
Third-party blocking time is low (0 ms)
96%
First-party Third-party
C
Image Optimization
Action
21 images, 0 KB saveable
REVIEW
21 images, 0 KB saveable
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/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/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/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/make-your-... 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/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-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/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/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-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-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/new-sale-2... 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

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

C
JS Execution Cost
Action
1415ms total JS execution
REVIEW
1415ms total JS execution
Warning::
https://unpkg.com/@lottiefiles/lottie-player@lates...: 623ms CPU time
Warning::
https://gumroad.com/: 359ms CPU time
Warning::
https://assets.gumroad.com/assets/hero_parallax-27...: 268ms CPU time
Info::
Unattributable: 165ms CPU time
Warning::
Third-party scripts: 1057ms (75% of total)

Main Thread Breakdown

Script Evaluation 50% Other 27% Style & Layout 14% Rendering 6%
ScriptTotalScriptingParse/CompileParty
https://unpkg.com/@lottiefiles/lottie-player@latest/dist/lottie-player.js623ms604ms15ms3rd
https://gumroad.com/359ms15ms1ms1st
https://assets.gumroad.com/assets/hero_parallax-27bf489656137e512ac46d75adf3668a1d6d58c4cf9c1f846f62722e0d7385ad.js268ms55ms0ms3rd
Unattributable165ms11ms0ms3rd
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 18.4 KiB 3%
Other 8.2 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 500 ms 1.0 s FCP 901 ms LCP 901 mshttps://assets.gumroad.com/packs/static/e4bac9369f6c1cf16e10.woff2e4bac9369f6c1cf16e10.woff2 https://assets.gumroad.com/packs/static/e4bac9369f6c1cf16e10.woff2 — 49.2 KiB — 57 ms — font-display: swaphttps://assets.gumroad.com/packs/static/cb28e975c9733636c320.woff2cb28e975c9733636c320.woff2 https://assets.gumroad.com/packs/static/cb28e975c9733636c320.woff2 — 50.6 KiB — 56 ms — font-display: swap
e4bac9369f6c1cf16e10.woff2 woff2 swap
Size 49 KB
Load time 57 ms
Start 342 ms
Risk FOUT — text flashes from fallback to web font
cb28e975c9733636c320.woff2 woff2 swap
Size 51 KB
Load time 56 ms
Start 343 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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
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 · 577.0 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% · 18.4 KiB
Other 2% · 10.6 KiB

~73.9 KiB of savings available

Remove unused JavaScript: 73.9 KiB
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 1012ms
INFO
0 ms 500 ms 1.0 s FCP 901 ms LCP 901 mshttps://gumroad.com// https://gumroad.com/ — 200 — 18.4 KiB — 218 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 — 68 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 — 43 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 — 67 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 — 48 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 — 50 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 — 13.5 KiB — 69 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 — 46 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 — 45 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 — 44 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 — 45 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 — 43 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 — 42 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 — 29 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 — 29 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 — 48 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 — 60 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 — 59 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 — 55 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 — 57 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 — 56 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 — 52 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 — 52 ms — h3https://assets.gumroad.com/assets/about/new-sale-233a5432ab8c9c9a21e97027b67d4b84e09fc63fe7a4cc7fbec381c5a69b164d.svgassets.gumroad.com/assets/about/new... https://assets.gumroad.com/assets/about/new-sale-233a5432ab8c9c9a21e97027b67d4b84e09fc63fe7a4cc7fbec381c5a69b164d.svg — 200 — 22.7 KiB — 51 ms — h3https://assets.gumroad.com/assets/logo-g-9ae0790a0136b136f1979c9759d2a04c051cde5f7caf59231750793e387245ca.svgassets.gumroad.com/assets/logo-g-9a... https://assets.gumroad.com/assets/logo-g-9ae0790a0136b136f1979c9759d2a04c051cde5f7caf59231750793e387245ca.svg — 200 — 872 B — 50 ms — h3https://gumroad.com/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js/cdn-cgi/scripts/7d0fa10a/cloudflar... https://gumroad.com/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js — 200 — 4.0 KiB — 42 ms — h3https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 — 200 — 10.7 KiB — 64 ms — h2https://unpkg.com/@lottiefiles/lottie-player@latest/dist/lottie-player.jsunpkg.com/@lottiefiles/lottie-playe... https://unpkg.com/@lottiefiles/lottie-player@latest/dist/lottie-player.js — 302 — 319 B — 81 ms — h3https://assets.gumroad.com/assets/hero_parallax-27bf489656137e512ac46d75adf3668a1d6d58c4cf9c1f846f62722e0d7385ad.jsassets.gumroad.com/assets/hero_para... https://assets.gumroad.com/assets/hero_parallax-27bf489656137e512ac46d75adf3668a1d6d58c4cf9c1f846f62722e0d7385ad.js — 200 — 1.2 KiB — 29 ms — h3https://gumroad.com/github_stars/github_stars https://gumroad.com/github_stars — 200 — 2.0 KiB — 109 ms — h3
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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 1057ms · 1KB · €6/mo
unpkg
CDN
Costly
Execution 623ms
Transfer 0 KB
Monthly Cost €3/mo
assets.gumroad.com
Other
Costly
Execution 268ms
Transfer 1 KB
Monthly Cost €1/mo
Unattributable
Other
Optional
Execution 165ms
Transfer 0 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • unpkg adds 623ms and costs ~€3/month
  • assets.gumroad.com adds 268ms and costs ~€1/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 623ms 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 268ms 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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