Skip to content
https://netflix.shop

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
71
GRADE
C
FIX
5
REVIEW
1
PASS
6
INFO
2

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

Mobile Desktop
67
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
96
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
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.

1.15 s

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

3.25 s

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

164 ms

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

0.004

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

3.70 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.

5.45 s

Page Load Progression

617 ms
1.2 s
1.9 s
2.5 s
3.1 s
3.7 s
4.3 s
4.9 s
Checks
14
6 PASS 1 REVIEW 5 FIX
F
Page Weight Budget
Action
5.1 MB transferred, 312 requests
FIX
5.1 MB transferred, 312 requests
Critical::
Page weighs 11.0 MB (5.1 MB transferred)
Warning::
JavaScript is 1.9 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.9 MB
Warning::
Images are 1.6 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.6 MB
Info::
Fonts are 394 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 394 KB
Warning::
312 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 1.1 g CO2 per page load
5.1 MB / 2.4 MB budget
5.1 MB transferred
312 requests
1.1 g CO2 per page load
JavaScript 1.9 MiB 38%
Images 1.6 MiB 32%
Other 860.3 KiB 16%
Fonts 393.6 KiB 7%
HTML 176.5 KiB 3%
CSS 117.2 KiB 2%
Other 30.9 KiB 1%
Other 30.2 KiB 1%
Other 7.7 KiB 0%
Other 1.5 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over 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

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

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

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 (5.1 MiB of 5.1 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
5649ms total JS execution
FIX
5649ms total JS execution
Warning::
https://www.netflix.shop/en-es: 2358ms CPU time
Warning::
https://www.netflix.shop/cdn/shop/t/558/assets/app...: 1203ms CPU time
Warning::
Unattributable: 510ms CPU time
Warning::
https://cdn.shopify.com/extensions/019d6725-fee7-7...: 307ms CPU time
Info::
https://cdn.shopify.com/extensions/019d59a1-02f7-7...: 179ms CPU time
Warning::
Third-party scripts: 5649ms (100% of total)

Main Thread Breakdown

Style & Layout 36% Script Evaluation 29% Other 19% Rendering 11%
ScriptTotalScriptingParse/CompileParty
https://www.netflix.shop/en-es2358ms42ms27ms3rd
https://www.netflix.shop/cdn/shop/t/558/assets/app.min.js?v=1270129012394679042817743626351203ms270ms10ms3rd
Unattributable510ms34ms0ms3rd
https://cdn.shopify.com/extensions/019d6725-fee7-7c7f-a0d0-e4dbfff476c9/wiser-ai-upsell-cross-sell-1829/assets/wiser_2.0.js307ms146ms23ms3rd
https://cdn.shopify.com/extensions/019d59a1-02f7-7559-bd14-8ff7eaf3ebe2/rivo-loyalty-rewards-referrals-760/assets/ba_rivo_profile.js179ms145ms7ms3rd
https://www.netflix.shop/cdn/wpm/b0e8c7c7aw41bd75a1p837d7fd4m8b145375m.js163ms81ms6ms3rd
https://static.klaviyo.com/onsite/js/build-preview/commit-98747c9b1816a2f78e748cdc073a286a0296d9f7/vendors~in_app_forms~signup_forms~reviews~atlas.0201e888d834a3782e3a.js?cb=2135ms89ms1ms3rd
https://script.crazyegg.com/pages/versioned/tracking-scripts/82e5ba57b94e70a81483b8547f7ad7b0.js128ms125ms2ms3rd
https://static.ada.support/embed2.84129bb.js113ms88ms22ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-PGNJKX898ms75ms13ms3rd

Showing top 10 of 17 scripts

F
JS Bundles
Action
203 scripts, 623 KB unused
FIX
203 scripts, 623 KB unused
Warning::
https://cdn.shopify.com/extensions/019d4452-a688-7...: 96 KB unused (50%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.shopify.com/extensions/019d6725-fee7-7...: 87 KB unused (56%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://accounts.google.com/gsi/client: 67 KB unused (72%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-PGN...: 67 KB unused (38%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://d3hw6dc1ow8pp2.cloudfront.net/reviewsWidge...: 56 KB unused (65%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 623 KB
623 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cdn.shopify.com/extensions/019d4452-a688-7f62-a580-35eb5d108d70/fast-bundle-product-bundles-78/assets/main.min.js192 KB96 KB (50%)✓3rd
https://cdn.shopify.com/extensions/019d6725-fee7-7c7f-a0d0-e4dbfff476c9/wiser-ai-upsell-cross-sell-1829/assets/wiser_2.0.js156 KB87 KB (56%)✓3rd
https://accounts.google.com/gsi/client94 KB67 KB (72%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-PGNJKX8174 KB67 KB (38%)✓3rd
https://d3hw6dc1ow8pp2.cloudfront.net/reviewsWidget.min.js?shop=ntflx-en-us-main-001.myshopify.com87 KB56 KB (65%)✓3rd
https://www.netflix.shop/cdn/shop/t/558/assets/app.min.js?v=12701290123946790428177436263587 KB48 KB (56%)✓3rd
https://static.ada.support/embed2.84129bb.js65 KB38 KB (59%)✓3rd
https://cdn.shopify.com/extensions/019d4452-a688-7f62-a580-35eb5d108d70/fast-bundle-product-bundles-78/assets/vendor.js62 KB35 KB (58%)✓3rd
https://cdn.customily.com/shopify/static/customily.shopify.script.js?shop=ntflx-en-us-main-001.myshopify.com48 KB32 KB (67%)✓3rd
https://cdn.shopify.com/extensions/019d59a1-02f7-7559-bd14-8ff7eaf3ebe2/rivo-loyalty-rewards-referrals-760/assets/ba_rivo_profile.js63 KB27 KB (43%)✓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, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
max-age0Cache for 0 seconds
no-store—Never cache this response
no-cache—Cache but always revalidate first
must-revalidate—Must recheck with server after expiry
post-check0
pre-check0
C
Image Optimization
Action
26 images, 0 KB saveable
REVIEW
26 images, 0 KB saveable
Warning::
https://www.netflix.shop/cdn/shop/files/OP-KLHA-04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.netflix.shop/cdn/shop/files/OP-SHP_56_... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.netflix.shop/cdn/shop/files/915398_sil... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.netflix.shop/cdn/shop/files/NCA98Y1NET... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.netflix.shop/cdn/shop/files/Snow_Comme... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.netflix.shop/cdn/shop/files/Property_1... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.netflix.shop/cdn/shop/files/OP-S2-0326... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.shopify.com/static/images/flags/es.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.netflix.shop/cdn/shop/files/OP-LCSBH_2... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.netflix.shop/cdn/shop/files/One_Piece_... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.netflix.shop/cdn/shopifycloud/storefro... 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://d3k81ch9hvuctc.cloudfront.net/company/S2UC... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
26 images 1.6 MB
0 oversized -0 KB
6 legacy format
13 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

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

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

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
8 fonts (394 KB)
PASS
8 fonts (394 KB)
Info::
8 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

8

394 KB total

Render-blocking

0

of 8

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 1.2 s LCP 3.3 shttps://www.netflix.shop/cdn/shop/t/558/assets/NetflixSans_W_Blk.woff2?v=89640073203089201101774362635NetflixSans_W_Blk.woff2 https://www.netflix.shop/cdn/shop/t/558/assets/NetflixSans_W_Blk.woff2?v=89640073203089201101774362635 — 50.2 KiB — 0 ms — font-display: swaphttps://www.netflix.shop/cdn/shop/t/558/assets/NetflixSans_W_Md.woff2?v=130958336834417874751774362635NetflixSans_W_Md.woff2 https://www.netflix.shop/cdn/shop/t/558/assets/NetflixSans_W_Md.woff2?v=130958336834417874751774362635 — 48.6 KiB — 0 ms — font-display: swaphttps://www.netflix.shop/cdn/shop/t/558/assets/NetflixSans_W_Bd.woff2?v=125908002224056450621774362635NetflixSans_W_Bd.woff2 https://www.netflix.shop/cdn/shop/t/558/assets/NetflixSans_W_Bd.woff2?v=125908002224056450621774362635 — 50.1 KiB — 0 ms — font-display: swaphttps://www.netflix.shop/cdn/shop/t/558/assets/NetflixSans_W_Rg.woff2?v=131032504100285825701774362635NetflixSans_W_Rg.woff2 https://www.netflix.shop/cdn/shop/t/558/assets/NetflixSans_W_Rg.woff2?v=131032504100285825701774362635 — 48.1 KiB — 0 ms — font-display: swaphttps://cdn.shopify.com/s/files/1/0522/8222/8911/t/2/assets/NetflixSans_W_Bd.woff2?v=12590800222405645062NetflixSans_W_Bd.woff2 https://cdn.shopify.com/s/files/1/0522/8222/8911/t/2/assets/NetflixSans_W_Bd.woff2?v=12590800222405645062 — 50.0 KiB — 0 ms — font-display: swaphttps://cdn.shopify.com/s/files/1/0522/8222/8911/t/2/assets/NetflixSans_W_Rg.woff2?v=13103250410028582570NetflixSans_W_Rg.woff2 https://cdn.shopify.com/s/files/1/0522/8222/8911/t/2/assets/NetflixSans_W_Rg.woff2?v=13103250410028582570 — 48.0 KiB — 0 ms — font-display: swaphttps://cdn.shopify.com/s/files/1/0522/8222/8911/files/NetflixSans_W_Md.woff2NetflixSans_W_Md.woff2 https://cdn.shopify.com/s/files/1/0522/8222/8911/files/NetflixSans_W_Md.woff2 — 48.5 KiB — 0 ms — font-display: swaphttps://cdn.shopify.com/s/files/1/0522/8222/8911/t/2/assets/NetflixSans_W_Blk.woff2?v=8964007320308920110NetflixSans_W_Blk.woff2 https://cdn.shopify.com/s/files/1/0522/8222/8911/t/2/assets/NetflixSans_W_Blk.woff2?v=8964007320308920110 — 50.2 KiB — 0 ms — font-display: swap
NetflixSans_W_Blk.woff2 woff2 swap
Size 50 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
NetflixSans_W_Md.woff2 woff2 swap
Size 49 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
NetflixSans_W_Bd.woff2 woff2 swap
Size 50 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
NetflixSans_W_Rg.woff2 woff2 swap
Size 48 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
NetflixSans_W_Bd.woff2 woff2 swap
Size 50 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
NetflixSans_W_Rg.woff2 woff2 swap
Size 48 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
NetflixSans_W_Md.woff2 woff2 swap
Size 49 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
NetflixSans_W_Blk.woff2 woff2 swap
Size 50 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)
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+
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
312 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 5649ms · 1159KB · €30/mo
www.netflix.shop
Other
Costly
Execution 2358ms
Transfer 85 KB
Monthly Cost €12/mo
www.netflix.shop
Other
Costly
Execution 1203ms
Transfer 87 KB
Unused 56%
Monthly Cost €6/mo
Unattributable
Other
Costly
Execution 510ms
Transfer 0 KB
Monthly Cost €3/mo
cdn.shopify.com
Other
Costly
Execution 307ms
Transfer 156 KB
Unused 56%
Monthly Cost €2/mo
cdn.shopify.com
Other
Optional
Execution 179ms
Transfer 63 KB
Unused 43%
Monthly Cost €1/mo
www.netflix.shop
Other
Optional
Execution 163ms
Transfer 61 KB
Unused 43%
Monthly Cost €1/mo
static.klaviyo.com
Other
Optional
Execution 135ms
Transfer 10 KB
Monthly Cost €1/mo
script.crazyegg.com
Other
Optional
Execution 128ms
Transfer 22 KB
Monthly Cost €1/mo
static.ada.support
Other
Optional
Execution 113ms
Transfer 65 KB
Unused 59%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 98ms
Transfer 174 KB
Unused 38%
Monthly Cost €1/mo
www.netflix.shop
Other
Optional
Execution 83ms
Transfer 31 KB
Monthly Cost €0/mo
script.crazyegg.com
Other
Optional
Execution 81ms
Transfer 51 KB
Unused 47%
Monthly Cost €0/mo
d3hw6dc1ow8pp2.cloudfront.net
Other
Optional
Execution 64ms
Transfer 87 KB
Unused 65%
Monthly Cost €0/mo
static.klaviyo.com
Other
Optional
Execution 62ms
Transfer 23 KB
Monthly Cost €0/mo
static-tracking.klaviyo.com
Other
Optional
Execution 61ms
Transfer 52 KB
Monthly Cost €0/mo
cdn.shopify.com
Other
Optional
Execution 52ms
Transfer 192 KB
Unused 50%
Monthly Cost €0/mo
www.netflix.shop
Other
Optional
Execution 51ms
Transfer 1 KB
Monthly Cost €0/mo

These scripts may cost more than they're worth

  • www.netflix.shop adds 2358ms and costs ~€12/month
  • www.netflix.shop adds 1203ms and costs ~€6/month
  • Unattributable adds 510ms and costs ~€3/month
  • cdn.shopify.com adds 307ms 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.netflix.shop takes 2358ms 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.netflix.shop takes 1203ms 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

56% of www.netflix.shop'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 510ms 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 307ms 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

56% of cdn.shopify.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 static.ada.support'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 d3hw6dc1ow8pp2.cloudfront.net'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

50% of cdn.shopify.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.

Send Feedback