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https://www.colourpop.com

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
66
GRADE
D
FIX
5
REVIEW
1
PASS
6
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.
71
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
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.

3.20 s

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

4.99 s

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

5.86 s

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.

20.51 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.

47.84 s

Page Load Progression

5.5 s
11.0 s
16.6 s
22.1 s
27.6 s
33.1 s
38.6 s
44.1 s
Checks
14
6 PASS 1 REVIEW 5 FIX
F
Page Weight Budget
Action
8.9 MB transferred, 734 requests
FIX
8.9 MB transferred, 734 requests
Critical::
Page weighs 17.7 MB (8.9 MB transferred)
Warning::
Images are 4.7 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 4.7 MB
Warning::
JavaScript is 2.7 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 2.7 MB
Warning::
734 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 1.9 g CO2 per page load
8.9 MB / 2.4 MB budget
8.9 MB transferred
734 requests
1.9 g CO2 per page load
Images 4.7 MiB 53%
JavaScript 2.7 MiB 31%
Other 1003.0 KiB 11%
HTML 163.6 KiB 2%
Other 119.6 KiB 1%
Fonts 115.0 KiB 1%
Other 56.1 KiB 1%
CSS 19.9 KiB 0%
Other 13.2 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

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

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

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 (8.9 MiB of 8.9 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
47958ms total JS execution
FIX
47958ms total JS execution
Warning::
Unattributable: 14210ms CPU time
Warning::
https://colourpop.com/cdn/shop/t/1238/assets/chunk...: 7136ms CPU time
Warning::
https://colourpop.com/: 6246ms CPU time
Warning::
https://imgs.signifyd.com/EqGL-5jXprpTPM61?4107c85...: 5281ms CPU time
Warning::
https://cdn-static.okendo.io/reviews-widget-plus/j...: 1483ms CPU time
Warning::
Third-party scripts: 47958ms (100% of total)

Main Thread Breakdown

Other 43% Script Evaluation 38% Style & Layout 12%
ScriptTotalScriptingParse/CompileParty
Unattributable14210ms1144ms0ms3rd
https://colourpop.com/cdn/shop/t/1238/assets/chunk-swiper-element-bundle-DRhDKJlJ.js7136ms2074ms1ms3rd
https://colourpop.com/6246ms1338ms45ms3rd
https://imgs.signifyd.com/EqGL-5jXprpTPM61?4107c85d98651828=CK_kUYiTN-7FwvY_BgMNwSUW50aQjMUxOMUjlstHgqEoo8Zl1kLxdETBCSZU7R2p1XAgFVSygVZfCRny7P_XSX2y3WmU6QbI09t6kcAknyinw2UEhHtqgmZZxHitabUGpeDEUr_QRNUuAvcRCEkktX6Li2aKbI7qKU8eZbeKMcYMUeU-A7DVe_eAlbcHgJ1e&jb=3e352c266a7b657f3f44616e77782e68736f37436666726d61662f3230393b2c687b6a753f4360706f6d6f2462716d7735767875652e607960354b68706f656725323a333c345281ms2197ms47ms3rd
https://cdn-static.okendo.io/reviews-widget-plus/js/modules/okendo-star-rating.c993002a.js1483ms1394ms2ms3rd
https://cdn-scripts.signifyd.com/o/lite.js?sessionId=hWNAdyOkvMMAW4m3QAzGHG5s&ping=false&profile=true&pageURL=https%253A%252F%252Fcolourpop.com%252F1408ms1231ms19ms3rd
https://colourpop.com/cdn/shopifycloud/storefront/assets/storefront/load_feature-496de5fe.js1366ms1264ms2ms3rd
https://colourpop.com/cdn/wpm/bcfa8229ew36b6053dp1e134caame9d83f21m.js1284ms1069ms31ms3rd
https://widget.gotolstoy.com/we/widget.js1164ms429ms1ms3rd
https://colourpop.com/cdn/shop/t/1238/assets/-vendor-swiper.js?v=1255450439746830864817749723841102ms300ms0ms3rd

Showing top 10 of 46 scripts

F
JS Bundles
Action
274 scripts, 552 KB unused
FIX
274 scripts, 552 KB unused
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-WQK...: 66 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-WQK...: 66 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.506.io/eg/script.js?shop=colourpop-prd...: 52 KB unused (67%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://na-library.klarnaservices.com/v1/1.0.111/s...: 51 KB unused (47%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=AW-727...: 51 KB unused (36%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 552 KB
552 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtm.js?id=GTM-WQKQL2VQ155 KB66 KB (43%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-WQKQL2VQ155 KB66 KB (43%)✓3rd
https://cdn.506.io/eg/script.js?shop=colourpop-prd.myshopify.com&v=978 KB52 KB (67%)✓3rd
https://na-library.klarnaservices.com/v1/1.0.111/sdk.js110 KB51 KB (47%)✓3rd
https://www.googletagmanager.com/gtag/js?id=AW-727142071143 KB51 KB (36%)✓3rd
https://play.gotolstoy.com/widget-v2/widget.js79 KB47 KB (59%)✓3rd
https://cdn.9gtb.com/script.js?rev=9b8201f61 KB34 KB (57%)✓3rd
https://connect.facebook.net/en_US/fbevents.js95 KB32 KB (34%)✓3rd
https://colourpop.com/apps/proxy/script/shopify/market/nosto.js?merchant=shopify-13380845&market=27328594&locale=en52 KB32 KB (63%)✓3rd
https://cdn.attn.tv/tag/2026-latest/unified-tag.js?v=2026-latest_90ae5a3c87649 KB29 KB (59%)✓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

D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: private, no-store
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

private, no-store

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
no-store—Never cache this response
B
Image Optimization
301 images, 0 KB saveable
REVIEW
301 images, 0 KB saveable
Info::
All images are well-optimized
301 images 4.7 MB
0 oversized -0 KB
204 legacy format
0 missing dimensions CLS risk
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
3 fonts (115 KB)
PASS
3 fonts (115 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

115 KB total

Render-blocking

0

of 3

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 FCP 3.2 s LCP 5.0 shttps://colourpop.com/cdn/shop/t/1238/assets/VisbyCF-Medium.woffVisbyCF-Medium.woff https://colourpop.com/cdn/shop/t/1238/assets/VisbyCF-Medium.woff — 26.2 KiB — 0 ms — font-display: swaphttps://colourpop.com/cdn/shop/t/1238/assets/VisbyCF-Bold.woffVisbyCF-Bold.woff https://colourpop.com/cdn/shop/t/1238/assets/VisbyCF-Bold.woff — 25.7 KiB — 0 ms — font-display: swaphttps://cdn.shopify.com/shop-assets/static_uploads/shoplift/GTStandard-MRegular.woff2GTStandard-MRegular.woff2 https://cdn.shopify.com/shop-assets/static_uploads/shoplift/GTStandard-MRegular.woff2 — 63.2 KiB — 0 ms — font-display: swap
VisbyCF-Medium.woff woff swap
Size 26 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
VisbyCF-Bold.woff woff swap
Size 26 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
GTStandard-MRegular.woff2 woff2 swap
Size 63 KB
Load time 0 ms
Start 0 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)

Fixing the unchecked items could save ~16 KB and ~32 ms

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
5 hints, 0 missing preconnects
PASS
5 hints, 0 missing preconnects
Info::
Page uses 5 resource hint(s)

Current Resource Hints

preconnect
4
preload
—
dns-prefetch
1
prefetch
—

5 resource hints configured

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
734 requests over 0ms
INFO

Performance analysis not available for this result.

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 47958ms · 1482KB · €254/mo
Unattributable
Other
Costly
Execution 14210ms
Transfer 0 KB
Monthly Cost €75/mo
colourpop.com
Other
Costly
Execution 7136ms
Transfer 47 KB
Unused 51%
Monthly Cost €38/mo
colourpop.com
Other
Costly
Execution 6246ms
Transfer 83 KB
Monthly Cost €33/mo
imgs.signifyd.com
Other
Costly
Execution 5281ms
Transfer 60 KB
Monthly Cost €28/mo
cdn-static.okendo.io
Other
Costly
Execution 1483ms
Transfer 5 KB
Monthly Cost €8/mo
cdn-scripts.signifyd.com
Other
Costly
Execution 1408ms
Transfer 51 KB
Monthly Cost €7/mo
colourpop.com
Other
Costly
Execution 1366ms
Transfer 4 KB
Monthly Cost €7/mo
colourpop.com
Other
Costly
Execution 1284ms
Transfer 58 KB
Unused 43%
Monthly Cost €7/mo
widget.gotolstoy.com
Other
Costly
Execution 1164ms
Transfer 38 KB
Monthly Cost €6/mo
colourpop.com
Other
Costly
Execution 1102ms
Transfer 1 KB
Monthly Cost €6/mo
Google Tag Manager
Tag Manager
Costly
Execution 713ms
Transfer 143 KB
Unused 36%
Monthly Cost €4/mo
colourpop.com
Other
Costly
Execution 635ms
Transfer 4 KB
Monthly Cost €3/mo
jsDelivr
CDN
Costly
Execution 594ms
Transfer 21 KB
Monthly Cost €3/mo
jsDelivr
CDN
Costly
Execution 573ms
Transfer 17 KB
Monthly Cost €3/mo
cdn-static.okendo.io
Other
Costly
Execution 435ms
Transfer 17 KB
Monthly Cost €2/mo
widget.gotolstoy.com
Other
Costly
Execution 427ms
Transfer 19 KB
Monthly Cost €2/mo
colourpop.com
Other
Costly
Execution 296ms
Transfer 6 KB
Monthly Cost €2/mo
cdn.shopify.com
Other
Costly
Execution 219ms
Transfer 31 KB
Monthly Cost €1/mo
colourpop.com
Other
Optional
Execution 184ms
Transfer 1 KB
Monthly Cost €1/mo
Facebook Pixel
Advertising
Optional
Execution 181ms
Transfer 95 KB
Unused 34%
Monthly Cost €1/mo
colourpop.com
Other
Optional
Execution 179ms
Transfer 21 KB
Monthly Cost €1/mo
OneTrust
Consent
Essential
Execution 178ms
Transfer 3 KB
Monthly Cost €1/mo
cdn.attn.tv
Other
Optional
Execution 168ms
Transfer 49 KB
Unused 59%
Monthly Cost €1/mo
cdn.506.io
Other
Optional
Execution 161ms
Transfer 78 KB
Unused 67%
Monthly Cost €1/mo
cdn-scripts.signifyd.com
Other
Optional
Execution 159ms
Transfer 2 KB
Monthly Cost €1/mo
colourpop.com
Other
Optional
Execution 157ms
Transfer 52 KB
Unused 63%
Monthly Cost €1/mo
colourpop.com
Other
Optional
Execution 150ms
Transfer 27 KB
Monthly Cost €1/mo
Facebook Pixel
Advertising
Optional
Execution 145ms
Transfer 38 KB
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 142ms
Transfer 155 KB
Unused 43%
Monthly Cost €1/mo
d3hw6dc1ow8pp2.cloudfront.net
Other
Optional
Execution 137ms
Transfer 10 KB
Monthly Cost €1/mo
colourpop.com
Other
Optional
Execution 135ms
Transfer 31 KB
Monthly Cost €1/mo
imgs.signifyd.com
Other
Optional
Execution 122ms
Transfer 14 KB
Monthly Cost €1/mo
play.gotolstoy.com
Other
Optional
Execution 112ms
Transfer 79 KB
Unused 59%
Monthly Cost €1/mo
static.klaviyo.com
Other
Optional
Execution 108ms
Transfer 2 KB
Monthly Cost €1/mo
ajax.googleapis.com
Other
Optional
Execution 96ms
Transfer 34 KB
Unused 70%
Monthly Cost €1/mo
rapid-cdn.yottaa.com
Other
Optional
Execution 95ms
Transfer 25 KB
Monthly Cost €1/mo
colourpop.com
Other
Optional
Execution 93ms
Transfer 4 KB
Monthly Cost €0/mo
a42cdn.usablenet.com
Other
Optional
Execution 93ms
Transfer 5 KB
Monthly Cost €0/mo
cdn.9gtb.com
Other
Optional
Execution 87ms
Transfer 61 KB
Unused 57%
Monthly Cost €0/mo
colourpop.com
Other
Optional
Execution 82ms
Transfer 23 KB
Monthly Cost €0/mo
cdn-scripts.signifyd.com
Other
Optional
Execution 81ms
Transfer 7 KB
Monthly Cost €0/mo
jsDelivr
CDN
Optional
Execution 75ms
Transfer 3 KB
Monthly Cost €0/mo
cdn.attn.tv
Other
Optional
Execution 73ms
Transfer 4 KB
Monthly Cost €0/mo
cdn-widgetsrepository.yotpo.com
Other
Optional
Execution 70ms
Transfer 13 KB
Monthly Cost €0/mo
d3hw6dc1ow8pp2.cloudfront.net
Other
Optional
Execution 63ms
Transfer 27 KB
Monthly Cost €0/mo
static-tracking.klaviyo.com
Other
Optional
Execution 57ms
Transfer 14 KB
Monthly Cost €0/mo

These scripts may cost more than they're worth

  • Unattributable adds 14210ms and costs ~€75/month
  • colourpop.com adds 7136ms and costs ~€38/month
  • colourpop.com adds 6246ms and costs ~€33/month
  • imgs.signifyd.com adds 5281ms and costs ~€28/month
  • cdn-static.okendo.io adds 1483ms and costs ~€8/month
  • cdn-scripts.signifyd.com adds 1408ms and costs ~€7/month
  • colourpop.com adds 1366ms and costs ~€7/month
  • colourpop.com adds 1284ms and costs ~€7/month
  • widget.gotolstoy.com adds 1164ms and costs ~€6/month
  • colourpop.com adds 1102ms and costs ~€6/month
  • Google Tag Manager adds 713ms and costs ~€4/month
  • colourpop.com adds 635ms and costs ~€3/month
  • jsDelivr adds 594ms and costs ~€3/month
  • jsDelivr adds 573ms and costs ~€3/month
  • cdn-static.okendo.io adds 435ms and costs ~€2/month
  • widget.gotolstoy.com adds 427ms and costs ~€2/month
  • colourpop.com adds 296ms and costs ~€2/month
  • cdn.shopify.com adds 219ms and costs ~€1/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

Unattributable takes 14210ms 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

colourpop.com takes 7136ms 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

51% of colourpop.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

colourpop.com takes 6246ms 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

imgs.signifyd.com takes 5281ms 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-static.okendo.io takes 1483ms 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-scripts.signifyd.com takes 1408ms 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

colourpop.com takes 1366ms 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

colourpop.com takes 1284ms 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

widget.gotolstoy.com takes 1164ms 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

colourpop.com takes 1102ms 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 713ms 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

colourpop.com takes 635ms 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

jsDelivr takes 594ms 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

jsDelivr takes 573ms 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-static.okendo.io takes 435ms 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

widget.gotolstoy.com takes 427ms 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

colourpop.com takes 296ms 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.shopify.com takes 219ms 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

59% of cdn.attn.tv'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

67% of cdn.506.io'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

63% of colourpop.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

59% of play.gotolstoy.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

70% of ajax.googleapis.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

57% of cdn.9gtb.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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