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https://vestacp.com

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
1
REVIEW
4
PASS
8
INFO
2

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

Mobile Desktop
97
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
98
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.

367 ms

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

1.31 s

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

0 ms

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

0.000

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

367 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.

1.31 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
8 PASS 4 REVIEW 1 FIX
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

B
Page Weight Budget
1.5 MB transferred, 49 requests
REVIEW
1.5 MB transferred, 49 requests
Info::
Page weighs 2.3 MB (1.5 MB transferred)
Warning::
Images are 1.1 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.1 MB
Info::
49 HTTP requests
Info::
Estimated 0.32 g CO2 per page load
1.5 MB / 2.4 MB budget
1.5 MB transferred
49 requests
0.32 g CO2 per page load
Images 1.1 MiB 69%
JavaScript 443.5 KiB 28%
HTML 32.2 KiB 2%
Other 1.8 KiB 0%
Other 1.7 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Approaching limit

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

C
Image Optimization
Action
12 images, 0 KB saveable
REVIEW
12 images, 0 KB saveable
Warning::
https://vestacp.com/_nuxt/home-hero-img.BDv9ZOD4.p... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://vestacp.com/_nuxt/home-world.ChFa2ByE.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAA... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAA... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAA... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://vestacp.com/_nuxt/cli-interface.f--2rRaP.p... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAA... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAA... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAA... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
12 images 1.1 MB
0 oversized -0 KB
4 legacy format
9 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

C
JS Bundles
Action
27 scripts, 152 KB unused
REVIEW
27 scripts, 152 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-V7WX...: 66 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-M8L...: 64 KB unused (54%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://vestacp.com/_nuxt/rPnXxMxj.js: 22 KB unused (31%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 152 KB
152 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-V7WXT7XQX3&cx=c&gtm=4e64k1157 KB66 KB (42%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-M8L53LX2119 KB64 KB (54%)✓3rd
https://vestacp.com/_nuxt/rPnXxMxj.js71 KB22 KB (31%)✓1st
https://defender.belljar.com/pixel/2 KB—✓3rd
https://vestacp.com/_nuxt/D-mzY0GV.js1 KB—✓1st
https://vestacp.com/_nuxt/BOcsuxXn.js1 KB—✓1st
https://vestacp.com/_nuxt/BkaoS0Km.js1 KB—✓1st
https://vestacp.com/_nuxt/BS0k4P0n.js1 KB—✓1st
https://vestacp.com/_nuxt/1s1gcrvS.js4 KB—✓1st
https://vestacp.com/_nuxt/dRt0vNiR.js1 KB—✓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

C
Page Weight Inventory
Action
49 resources · 1.5 MB · 152 KB savings available
REVIEW
49 resources · 1.5 MB · 152 KB savings available
Warning::
Page weight 546 KB over 1MB target
Got: 1.5 MB Expected: ≤ 1 MB
Info::
~152 KB of savings available
Info::
14 third-party resources (18% of weight)
Info::
2 resources over 200KB
49 resources · 1.5 MiB · 14 third-party 545.9 KiB over 1MB target
Image 70% · 1.1 MiB
JavaScript 28% · 443.5 KiB
Document 2% · 32.2 KiB
Other 0% · 1.7 KiB

~152.4 KiB of savings available

Remove unused JavaScript: 152.4 KiB
A+
Third-Party Impact
18% third-party, 0 ms blocking
PASS
18% third-party, 0 ms blocking
Info::
Third-party code accounts for 18% of page weight (278.4 KiB of 1.5 MiB)
Info::
Third-party blocking time is low (0 ms)
82%
18%
First-party Third-party
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+
JS Execution Cost
164ms total JS execution
PASS
164ms total JS execution
Info::
Unattributable: 111ms CPU time
Info::
https://vestacp.com/: 53ms CPU time
Warning::
Third-party scripts: 111ms (68% of total)

Main Thread Breakdown

Script Evaluation 55% Other 24% Style & Layout 9% Script Parsing & Compilation 7%
ScriptTotalScriptingParse/CompileParty
Unattributable111ms65ms0ms3rd
https://vestacp.com/53ms5ms3ms1st
A+
Font Loading
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
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
49 requests over 1802ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 367 ms LCP 1.3 shttps://vestacp.com// https://vestacp.com/ — 200 — 32.2 KiB — 89 ms — h2https://vestacp.com/_nuxt/rPnXxMxj.js/_nuxt/rPnXxMxj.js https://vestacp.com/_nuxt/rPnXxMxj.js — 200 — 71.0 KiB — 83 ms — h2https://vestacp.com/_nuxt/CEZYHrKn.js/_nuxt/CEZYHrKn.js https://vestacp.com/_nuxt/CEZYHrKn.js — 200 — 19.7 KiB — 45 ms — h2https://vestacp.com/_nuxt/DyZYcJTn.js/_nuxt/DyZYcJTn.js https://vestacp.com/_nuxt/DyZYcJTn.js — 200 — 844 B — 48 ms — h2https://vestacp.com/_nuxt/BS0k4P0n.js/_nuxt/BS0k4P0n.js https://vestacp.com/_nuxt/BS0k4P0n.js — 200 — 907 B — 42 ms — h2https://vestacp.com/_nuxt/BmEsiRZl.js/_nuxt/BmEsiRZl.js https://vestacp.com/_nuxt/BmEsiRZl.js — 200 — 560 B — 66 ms — h2https://vestacp.com/_nuxt/BOcsuxXn.js/_nuxt/BOcsuxXn.js https://vestacp.com/_nuxt/BOcsuxXn.js — 200 — 567 B — 48 ms — h2https://vestacp.com/_nuxt/BkaoS0Km.js/_nuxt/BkaoS0Km.js https://vestacp.com/_nuxt/BkaoS0Km.js — 200 — 724 B — 44 ms — h2https://vestacp.com/_nuxt/home-hero-img.BDv9ZOD4.png/_nuxt/home-hero-img.BDv9ZOD4.png https://vestacp.com/_nuxt/home-hero-img.BDv9ZOD4.png — 200 — 75.5 KiB — 63 ms — h2https://vestacp.com/_nuxt/home-world.ChFa2ByE.png/_nuxt/home-world.ChFa2ByE.png https://vestacp.com/_nuxt/home-world.ChFa2ByE.png — 200 — 451.8 KiB — 108 ms — h2https://vestacp.com/_nuxt/monitoring.CVQJKGC1.png/_nuxt/monitoring.CVQJKGC1.png https://vestacp.com/_nuxt/monitoring.CVQJKGC1.png — 200 — 154.5 KiB — 103 ms — h2https://vestacp.com/_nuxt/cli-interface.f--2rRaP.png/_nuxt/cli-interface.f--2rRaP.png https://vestacp.com/_nuxt/cli-interface.f--2rRaP.png — 200 — 408.7 KiB — 111 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-M8L53LX2www.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-M8L53LX2 — 200 — 118.5 KiB — 179 ms — h2https://vestacp.com/_nuxt/home-hero-img.BDv9ZOD4.png/_nuxt/home-hero-img.BDv9ZOD4.png https://vestacp.com/_nuxt/home-hero-img.BDv9ZOD4.png — 200 — 0 B — 62 ms — h2https://vestacp.com/_nuxt/home-world.ChFa2ByE.png/_nuxt/home-world.ChFa2ByE.png https://vestacp.com/_nuxt/home-world.ChFa2ByE.png — 200 — 0 B — 101 ms — h2https://vestacp.com/_nuxt/monitoring.CVQJKGC1.png/_nuxt/monitoring.CVQJKGC1.png https://vestacp.com/_nuxt/monitoring.CVQJKGC1.png — 200 — 0 B — 101 ms — h2https://vestacp.com/_nuxt/cli-interface.f--2rRaP.png/_nuxt/cli-interface.f--2rRaP.png https://vestacp.com/_nuxt/cli-interface.f--2rRaP.png — 200 — 0 B — 112 ms — h2data:image/svg+xml,%3csvg%20width='364'%20height='112'%20viewBox='0%200%20364%20112'%20fill='none'%…data:image/svg+xml,%3csvg%20width='... data:image/svg+xml,%3csvg%20width='364'%20height='112'%20viewBox='0%200%20364%20112'%20fill='none'%… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAAAzCAYAAABogg1hAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAAAzCAYAAABogg1hAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAABACAYAAADlNHIOAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAABACAYAAADlNHIOAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAABkCAYAAAB5CTUuAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAABkCAYAAAB5CTUuAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAABJCAYAAADCOyPGAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAABJCAYAAADCOyPGAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAAB4CAYAAAANHffOAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAAB4CAYAAAANHffOAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAABhCAYAAAApxKSdAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAABhCAYAAAApxKSdAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC… — 200 — 0 B — 0 ms — datadata:image/svg+xml,%3csvg%20width='99'%20height='99'%20viewBox='0%200%2099%2099'%20fill='none'%20xm…data:image/svg+xml,%3csvg%20width='... data:image/svg+xml,%3csvg%20width='99'%20height='99'%20viewBox='0%200%2099%2099'%20fill='none'%20xm… — 200 — 0 B — 0 ms — datahttps://vestacp.com/_nuxt/builds/meta/d3c95072-2089-477f-964f-9afbc76cd446.json/_nuxt/builds/meta/d3c95072-2089-47... https://vestacp.com/_nuxt/builds/meta/d3c95072-2089-477f-964f-9afbc76cd446.json — 200 — 728 B — 28 ms — h3https://vestacp.com/_nuxt/1s1gcrvS.js/_nuxt/1s1gcrvS.js https://vestacp.com/_nuxt/1s1gcrvS.js — 200 — 4.4 KiB — 34 ms — h3https://vestacp.com/_nuxt/dRt0vNiR.js/_nuxt/dRt0vNiR.js https://vestacp.com/_nuxt/dRt0vNiR.js — 200 — 1.1 KiB — 30 ms — h3https://vestacp.com/_nuxt/BoEgdMWD.js/_nuxt/BoEgdMWD.js https://vestacp.com/_nuxt/BoEgdMWD.js — 200 — 858 B — 32 ms — h3https://www.googletagmanager.com/gtag/js?id=G-V7WXT7XQX3&cx=c&gtm=4e64k1www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-V7WXT7XQX3&cx=c&gtm=4e64k1 — 200 — 157.0 KiB — 70 ms — h2
0 ms 500 ms 1.0 s 1.5 s FCP 367 ms LCP 1.3 shttps://vestacp.com// https://vestacp.com/ — 200 — 32.2 KiB — 89 ms — h2https://vestacp.com/_nuxt/rPnXxMxj.js/_nuxt/rPnXxMxj.js https://vestacp.com/_nuxt/rPnXxMxj.js — 200 — 71.0 KiB — 83 ms — h2https://vestacp.com/_nuxt/CEZYHrKn.js/_nuxt/CEZYHrKn.js https://vestacp.com/_nuxt/CEZYHrKn.js — 200 — 19.7 KiB — 45 ms — h2https://vestacp.com/_nuxt/DyZYcJTn.js/_nuxt/DyZYcJTn.js https://vestacp.com/_nuxt/DyZYcJTn.js — 200 — 844 B — 48 ms — h2https://vestacp.com/_nuxt/BS0k4P0n.js/_nuxt/BS0k4P0n.js https://vestacp.com/_nuxt/BS0k4P0n.js — 200 — 907 B — 42 ms — h2https://vestacp.com/_nuxt/BmEsiRZl.js/_nuxt/BmEsiRZl.js https://vestacp.com/_nuxt/BmEsiRZl.js — 200 — 560 B — 66 ms — h2https://vestacp.com/_nuxt/BOcsuxXn.js/_nuxt/BOcsuxXn.js https://vestacp.com/_nuxt/BOcsuxXn.js — 200 — 567 B — 48 ms — h2https://vestacp.com/_nuxt/BkaoS0Km.js/_nuxt/BkaoS0Km.js https://vestacp.com/_nuxt/BkaoS0Km.js — 200 — 724 B — 44 ms — h2https://vestacp.com/_nuxt/home-hero-img.BDv9ZOD4.png/_nuxt/home-hero-img.BDv9ZOD4.png https://vestacp.com/_nuxt/home-hero-img.BDv9ZOD4.png — 200 — 75.5 KiB — 63 ms — h2https://vestacp.com/_nuxt/home-world.ChFa2ByE.png/_nuxt/home-world.ChFa2ByE.png https://vestacp.com/_nuxt/home-world.ChFa2ByE.png — 200 — 451.8 KiB — 108 ms — h2https://vestacp.com/_nuxt/monitoring.CVQJKGC1.png/_nuxt/monitoring.CVQJKGC1.png https://vestacp.com/_nuxt/monitoring.CVQJKGC1.png — 200 — 154.5 KiB — 103 ms — h2https://vestacp.com/_nuxt/cli-interface.f--2rRaP.png/_nuxt/cli-interface.f--2rRaP.png https://vestacp.com/_nuxt/cli-interface.f--2rRaP.png — 200 — 408.7 KiB — 111 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-M8L53LX2www.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-M8L53LX2 — 200 — 118.5 KiB — 179 ms — h2https://vestacp.com/_nuxt/home-hero-img.BDv9ZOD4.png/_nuxt/home-hero-img.BDv9ZOD4.png https://vestacp.com/_nuxt/home-hero-img.BDv9ZOD4.png — 200 — 0 B — 62 ms — h2https://vestacp.com/_nuxt/home-world.ChFa2ByE.png/_nuxt/home-world.ChFa2ByE.png https://vestacp.com/_nuxt/home-world.ChFa2ByE.png — 200 — 0 B — 101 ms — h2https://vestacp.com/_nuxt/monitoring.CVQJKGC1.png/_nuxt/monitoring.CVQJKGC1.png https://vestacp.com/_nuxt/monitoring.CVQJKGC1.png — 200 — 0 B — 101 ms — h2https://vestacp.com/_nuxt/cli-interface.f--2rRaP.png/_nuxt/cli-interface.f--2rRaP.png https://vestacp.com/_nuxt/cli-interface.f--2rRaP.png — 200 — 0 B — 112 ms — h2data:image/svg+xml,%3csvg%20width='364'%20height='112'%20viewBox='0%200%20364%20112'%20fill='none'%…data:image/svg+xml,%3csvg%20width='... data:image/svg+xml,%3csvg%20width='364'%20height='112'%20viewBox='0%200%20364%20112'%20fill='none'%… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAAAzCAYAAABogg1hAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAAAzCAYAAABogg1hAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAABACAYAAADlNHIOAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAABACAYAAADlNHIOAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAABkCAYAAAB5CTUuAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAABkCAYAAAB5CTUuAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAABJCAYAAADCOyPGAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAABJCAYAAADCOyPGAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAAB4CAYAAAANHffOAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC…data:image/png;base64,iVBORw0KGgoAA... 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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
68% of JavaScript execution is third-party
First-party Third-party 111ms · 0KB · $1/mo
Unattributable
Other
Optional
Execution 111ms
Transfer 0 KB
Monthly Cost $1/mo

68% 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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