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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
70
GRADE
C
FIX
4
REVIEW
3
PASS
6
INFO
2

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

Mobile Desktop
88
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.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
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.

392 ms

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

2.16 s

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

2 ms

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

0.014

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

1.24 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.

2.20 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
15
6 PASS 3 REVIEW 4 FIX
F
Page Weight Budget
Action
3.0 MB transferred, 78 requests
FIX
3.0 MB transferred, 78 requests
Warning::
Page weighs 6.2 MB (3.0 MB transferred)
Warning::
Images are 1.3 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.3 MB
Warning::
JavaScript is 1.1 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.1 MB
Info::
Fonts are 254 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 254 KB
Info::
78 HTTP requests
Info::
Estimated 0.62 g CO2 per page load
3.0 MB / 2.4 MB budget
3.0 MB transferred
78 requests
0.62 g CO2 per page load
Images 1.3 MiB 45%
JavaScript 1.1 MiB 37%
Fonts 253.6 KiB 8%
Other 177.7 KiB 6%
CSS 69.2 KiB 2%
HTML 45.9 KiB 2%
Other 1001 B 0%
Other 544 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

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

D
Third-Party Impact
Action
84% third-party, 0 ms blocking
FIX
84% third-party, 0 ms blocking
Warning::
Third-party code accounts for 84% of page weight (2.5 MiB of 3.0 MiB)
Info::
Third-party blocking time is low (0 ms)
16%
84%
First-party Third-party
F
JS Bundles
Action
48 scripts, 1.2 MB unused
FIX
48 scripts, 1.2 MB unused
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 176 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 176 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 176 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://magic.ly/_next/static/chunks/9736-5a164fcb...: 84 KB unused (46%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://magic.ly/_next/static/chunks/9736-5a164fcb...: 84 KB unused (46%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 1.2 MB
1195 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js0 KB176 KB (49%)✓3rd
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js362 KB176 KB (49%)✓3rd
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js362 KB176 KB (49%)✓3rd
https://magic.ly/_next/static/chunks/9736-5a164fcbdf275bd3.js45 KB84 KB (46%)✓1st
https://magic.ly/_next/static/chunks/9736-5a164fcbdf275bd3.js0 KB84 KB (46%)✓1st
https://magic.ly/_next/static/chunks/5446-11c3de1fd3115411.js0 KB67 KB (81%)✓1st
https://magic.ly/_next/static/chunks/5446-11c3de1fd3115411.js29 KB67 KB (81%)✓1st
https://www.googletagmanager.com/gtag/js?id=G-3PQLF9V8VD157 KB66 KB (42%)✓3rd
https://magic.ly/_next/static/chunks/pages/onboarding-9fdf55da6280d554.js18 KB50 KB (94%)✓1st
https://magic.ly/_next/static/chunks/pages/onboarding-9fdf55da6280d554.js0 KB50 KB (94%)✓1st

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

F
Page Weight Inventory
Action
78 resources · 3.0 MB · 1.2 MB savings available
FIX
78 resources · 3.0 MB · 1.2 MB savings available
Warning::
Page weight 2.0 MB over 1MB target
Got: 3.0 MB Expected: ≤ 1 MB
Info::
~1.2 MB of savings available
Warning::
30 third-party resources (84% of weight)
Info::
3 resources over 200KB
78 resources · 3.0 MiB · 30 third-party 2.0 MiB over 1MB target
Image 45% · 1.3 MiB
JavaScript 43% · 1.3 MiB
Font 8% · 253.6 KiB
CSS 2% · 69.2 KiB
Document 2% · 45.9 KiB
Other 0% · 1.7 KiB

~1.2 MiB of savings available

Remove unused JavaScript: 1.2 MiB
C
Image Optimization
Action
16 images, 0 KB saveable
REVIEW
16 images, 0 KB saveable
Warning::
https://img.magic.ly/static/home/home-customize.we... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://img.magic.ly/static/home/stats.webp is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://img.magic.ly/static/home/splash_d.webp is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
16 images 1.3 MB
0 oversized -0 KB
13 legacy format
3 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

B
JS Execution Cost
618ms total JS execution
REVIEW
618ms total JS execution
Info::
https://magic.ly/: 169ms CPU time
Info::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 162ms CPU time
Info::
Unattributable: 113ms CPU time
Info::
https://magic.ly/_next/static/chunks/framework-0e8...: 105ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-3PQL...: 68ms CPU time
Warning::
Third-party scripts: 343ms (56% of total)

Main Thread Breakdown

Script Evaluation 54% Other 17% Style & Layout 15% Script Parsing & Compilation 9% Rendering 3%
ScriptTotalScriptingParse/CompileParty
https://magic.ly/169ms9ms1ms1st
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js162ms138ms19ms3rd
Unattributable113ms2ms0ms3rd
https://magic.ly/_next/static/chunks/framework-0e8d27528ba61906.js105ms95ms7ms1st
https://www.googletagmanager.com/gtag/js?id=G-3PQLF9V8VD68ms57ms11ms3rd
B
HTTP Caching
public, s-maxage=300, stale-while-revalidate=60
REVIEW
public, s-maxage=300, stale-while-revalidate=60
Info::
Cache-Control header is set
Got: public, s-maxage=300, stale-while-revalidate=60
Info::
CDN TTL: 5 minutes (s-maxage=300)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

public, s-maxage=300, stale-while-revalidate=60

DirectiveValueMeaning
public—Any cache may store this response
s-maxage300CDN caches for 5 minutes
stale-while-revalidate60Serve stale for 1 minute while fetching fresh
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
6 fonts (254 KB)
PASS
6 fonts (254 KB)
Info::
6 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

6

254 KB total

Render-blocking

0

of 6

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 392 ms LCP 2.2 shttps://fonts.gstatic.com/s/courgette/v19/wEO_EBrAnc9BLjLQAUk1VvoK_kgXiQ.woff2wEO_EBrAnc9BLjLQAUk1Vvo... https://fonts.gstatic.com/s/courgette/v19/wEO_EBrAnc9BLjLQAUk1VvoK_kgXiQ.woff2 — 17.9 KiB — 49 ms — font-display: swaphttps://fonts.gstatic.com/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2JTUSjIg1_i6t8kCHKm459Wl... https://fonts.gstatic.com/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2 — 34.7 KiB — 74 ms — font-display: swaphttps://magic.ly/_next/static/media/slick.653a4cbb.woffslick.653a4cbb.woff https://magic.ly/_next/static/media/slick.653a4cbb.woff — 1.9 KiB — 47 ms — font-display: swaphttps://fonts.gstatic.com/l/font?kit=JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu170w9&skey=7bc19f711c0de8f&v=v31font https://fonts.gstatic.com/l/font?kit=JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu170w9&skey=7bc19f711c0de8f&v=v31 — 83.0 KiB — 111 ms — font-display: swaphttps://fonts.gstatic.com/l/font?kit=JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Ew9&skey=7bc19f711c0de8f&v=v31font https://fonts.gstatic.com/l/font?kit=JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Ew9&skey=7bc19f711c0de8f&v=v31 — 82.2 KiB — 111 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 33.9 KiB — 78 ms — font-display: swap
wEO_EBrAnc9BLjLQAUk1Vvo... woff2 swap
Size 18 KB
Load time 49 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
JTUSjIg1_i6t8kCHKm459Wl... woff2 swap
Size 35 KB
Load time 74 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
slick.653a4cbb.woff woff swap
Size 2 KB
Load time 47 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
font unknown swap
Size 83 KB
Load time 111 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
font unknown swap
Size 82 KB
Load time 111 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 34 KB
Load time 78 ms
Start 2.2 s
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 ~50 KB and ~100 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
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
78 requests over 2492ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 392 ms LCP 2.2 shttps://magic.ly// https://magic.ly/ — 200 — 18.3 KiB — 1.0 s — h3https://www.googletagmanager.com/gtag/js?id=G-3PQLF9V8VDwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-3PQLF9V8VD — 200 — 157.2 KiB — 205 ms — h2https://magic.ly/_next/static/css/721f6b26e27ed98f.css/_next/static/css/721f6b26e27ed98f.... https://magic.ly/_next/static/css/721f6b26e27ed98f.css — 200 — 27.1 KiB — 46 ms — h3https://img.magic.ly/static/home/splash_d.webpimg.magic.ly/static/home/splash_d.w... https://img.magic.ly/static/home/splash_d.webp — 200 — 171.9 KiB — 476 ms — h3https://magic.ly/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js/cdn-cgi/scripts/5c5dd728/cloudflar... https://magic.ly/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js — 200 — 1.0 KiB — 24 ms — h3https://magic.ly/_next/static/chunks/webpack-7b78c46d7b9a3d4a.js/_next/static/chunks/webpack-7b78c4... https://magic.ly/_next/static/chunks/webpack-7b78c46d7b9a3d4a.js — 200 — 3.0 KiB — 49 ms — h3https://magic.ly/_next/static/chunks/framework-0e8d27528ba61906.js/_next/static/chunks/framework-0e8d... https://magic.ly/_next/static/chunks/framework-0e8d27528ba61906.js — 200 — 44.8 KiB — 84 ms — h3https://magic.ly/_next/static/chunks/main-2563fcb1e98caac4.js/_next/static/chunks/main-2563fcb1e... https://magic.ly/_next/static/chunks/main-2563fcb1e98caac4.js — 200 — 45.3 KiB — 85 ms — h3https://magic.ly/_next/static/chunks/pages/_app-a6ea6152ffc27d93.js/_next/static/chunks/pages/_app-a6e... https://magic.ly/_next/static/chunks/pages/_app-a6ea6152ffc27d93.js — 200 — 48.4 KiB — 87 ms — h3https://magic.ly/_next/static/chunks/20f9a18a-27f1373122bd2d45.js/_next/static/chunks/20f9a18a-27f13... https://magic.ly/_next/static/chunks/20f9a18a-27f1373122bd2d45.js — 200 — 28.2 KiB — 60 ms — h3https://magic.ly/_next/static/chunks/5099-e94ba46aa84cc592.js/_next/static/chunks/5099-e94ba46aa... https://magic.ly/_next/static/chunks/5099-e94ba46aa84cc592.js — 200 — 12.0 KiB — 45 ms — h3https://magic.ly/_next/static/chunks/1366-229e0a3e4a42f5a6.js/_next/static/chunks/1366-229e0a3e4... https://magic.ly/_next/static/chunks/1366-229e0a3e4a42f5a6.js — 200 — 6.2 KiB — 41 ms — h3https://img.magic.ly/avatar/5fd12572d456740017105134.webp?1607542514209img.magic.ly/avatar/5fd12572d456740... https://img.magic.ly/avatar/5fd12572d456740017105134.webp?1607542514209 — 200 — 43.4 KiB — 103 ms — h3https://img.magic.ly/avatar/51c78729f61d982ac8014aa9bb82ba52.webp?1634067467018img.magic.ly/avatar/51c78729f61d982... https://img.magic.ly/avatar/51c78729f61d982ac8014aa9bb82ba52.webp?1634067467018 — 200 — 32.8 KiB — 73 ms — h3https://magic.ly/_next/static/chunks/2269-a1ec55d6759719e4.js/_next/static/chunks/2269-a1ec55d67... https://magic.ly/_next/static/chunks/2269-a1ec55d6759719e4.js — 200 — 4.1 KiB — 26 ms — h3https://magic.ly/_next/static/chunks/6066-67c2fefd900f6f28.js/_next/static/chunks/6066-67c2fefd9... https://magic.ly/_next/static/chunks/6066-67c2fefd900f6f28.js — 200 — 15.3 KiB — 31 ms — h3https://magic.ly/_next/static/chunks/7342-df7bb3b679de5557.js/_next/static/chunks/7342-df7bb3b67... https://magic.ly/_next/static/chunks/7342-df7bb3b679de5557.js — 200 — 6.3 KiB — 26 ms — h3https://magic.ly/_next/static/chunks/2798-93a3b5094f7351a6.js/_next/static/chunks/2798-93a3b5094... https://magic.ly/_next/static/chunks/2798-93a3b5094f7351a6.js — 200 — 4.9 KiB — 31 ms — h3https://magic.ly/_next/static/chunks/pages/index-a4558129ce0d3595.js/_next/static/chunks/pages/index-a4... https://magic.ly/_next/static/chunks/pages/index-a4558129ce0d3595.js — 200 — 11.8 KiB — 30 ms — h3https://magic.ly/_next/static/jaAOEpaa3jpjZDjiKyOmB/_buildManifest.js/_next/static/jaAOEpaa3jpjZDjiKyOmB... https://magic.ly/_next/static/jaAOEpaa3jpjZDjiKyOmB/_buildManifest.js — 200 — 2.9 KiB — 29 ms — h3https://magic.ly/_next/static/jaAOEpaa3jpjZDjiKyOmB/_ssgManifest.js/_next/static/jaAOEpaa3jpjZDjiKyOmB... https://magic.ly/_next/static/jaAOEpaa3jpjZDjiKyOmB/_ssgManifest.js — 200 — 680 B — 25 ms — h3https://img.magic.ly/avatar/5f5e9a313337830017a54b1e.jpg?1600035525106img.magic.ly/avatar/5f5e9a313337830... https://img.magic.ly/avatar/5f5e9a313337830017a54b1e.jpg?1600035525106 — 200 — 70.9 KiB — 126 ms — h3https://img.magic.ly/avatar/5f9717463f35df00178ae315.jpg?1603737981144img.magic.ly/avatar/5f9717463f35df0... https://img.magic.ly/avatar/5f9717463f35df00178ae315.jpg?1603737981144 — 200 — 137.0 KiB — 130 ms — h3https://img.magic.ly/avatar/617e66c8c8faa738427c6c222f10512b.webp?1621776287749img.magic.ly/avatar/617e66c8c8faa73... https://img.magic.ly/avatar/617e66c8c8faa738427c6c222f10512b.webp?1621776287749 — 200 — 160.0 KiB — 131 ms — h3https://img.magic.ly/avatar/9a6805e9f14ca3b22e65c7ff6c56bd47.webp?1673939685284img.magic.ly/avatar/9a6805e9f14ca3b... https://img.magic.ly/avatar/9a6805e9f14ca3b22e65c7ff6c56bd47.webp?1673939685284 — 200 — 106.9 KiB — 129 ms — h3https://img.magic.ly/avatar/5f5fb5cd4b271000172ad1cf.jpg?1600108376110img.magic.ly/avatar/5f5fb5cd4b27100... https://img.magic.ly/avatar/5f5fb5cd4b271000172ad1cf.jpg?1600108376110 — 200 — 139.6 KiB — 131 ms — h3https://img.magic.ly/avatar/6e08766af66f8cfa8dc938dc82ab3038.webp?1632190116857img.magic.ly/avatar/6e08766af66f8cf... https://img.magic.ly/avatar/6e08766af66f8cfa8dc938dc82ab3038.webp?1632190116857 — 200 — 30.7 KiB — 93 ms — h3https://img.magic.ly/avatar/5f584da39943e90017eb1805.jpg?1599622683702img.magic.ly/avatar/5f584da39943e90... https://img.magic.ly/avatar/5f584da39943e90017eb1805.jpg?1599622683702 — 200 — 305.9 KiB — 135 ms — h3https://img.magic.ly/avatar/6ce5f6846a5be1deec453a2c81cac954.webp?1628424071880img.magic.ly/avatar/6ce5f6846a5be1d... https://img.magic.ly/avatar/6ce5f6846a5be1deec453a2c81cac954.webp?1628424071880 — 200 — 50.7 KiB — 124 ms — 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h3https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js — 200 — 0 B — 12 ms — h2https://magic.ly/favicon.png/favicon.png https://magic.ly/favicon.png — 200 — 9.8 KiB — 216 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
56% of JavaScript execution is third-party
First-party Third-party 343ms · 157KB · $5/mo
www.gstatic.com
Other
Optional
Execution 162ms
Transfer 0 KB
Unused 49%
Monthly Cost $2/mo
Unattributable
Other
Optional
Execution 113ms
Transfer 0 KB
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 68ms
Transfer 157 KB
Unused 42%
Monthly Cost $1/mo

56% of JavaScript execution time comes from third-party scripts.

Why this matters

Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.

Learn more ▾

Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.

Source: web.dev / HTTP Archive Web Almanac

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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