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https://vestacp.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
1
REVIEW
5
PASS
9
INFO
2

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

Mobile Desktop
99
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.

1.02 s

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

1.02 s

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

142 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.

1.02 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.

5.62 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
17
9 PASS 5 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, 35 requests
REVIEW
1.5 MB transferred, 35 requests
Info::
Page weighs 2.2 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::
35 HTTP requests
Info::
Estimated 0.31 g CO2 per page load
1.5 MB / 2.4 MB budget
1.5 MB transferred
35 requests
0.31 g CO2 per page load
Images 1.1 MiB 72%
JavaScript 378.5 KiB 25%
HTML 32.2 KiB 2%
Other 1.9 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/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.
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/home-world.ChFa2ByE.png 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
8 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

B
JS Execution Cost
882ms total JS execution
REVIEW
882ms total JS execution
Warning::
Unattributable: 403ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-V7WX...: 158ms CPU time
Info::
https://vestacp.com/: 133ms CPU time
Info::
https://www.googletagmanager.com/gtm.js?id=GTM-M8L...: 125ms CPU time
Info::
https://defender.belljar.com/pixel/: 63ms CPU time
Warning::
Third-party scripts: 749ms (85% of total)

Main Thread Breakdown

Script Evaluation 59% Other 21% Script Parsing & Compilation 7% Style & Layout 6%
ScriptTotalScriptingParse/CompileParty
Unattributable403ms222ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-V7WXT7XQX3&cx=c&gtm=4e64m0h2158ms122ms35ms3rd
https://vestacp.com/133ms18ms2ms1st
https://www.googletagmanager.com/gtm.js?id=GTM-M8L53LX2125ms96ms26ms3rd
https://defender.belljar.com/pixel/63ms61ms1ms3rd
C
JS Bundles
Action
13 scripts, 152 KB unused
REVIEW
13 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=4e64m0h2156 KB66 KB (42%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-M8L53LX2118 KB64 KB (54%)✓3rd
https://vestacp.com/_nuxt/rPnXxMxj.js71 KB22 KB (31%)✓1st
https://vestacp.com/_nuxt/BkaoS0Km.js1 KB—✓1st
https://vestacp.com/_nuxt/BmEsiRZl.js1 KB—✓1st
https://vestacp.com/_nuxt/BOcsuxXn.js1 KB—✓1st
https://vestacp.com/_nuxt/BS0k4P0n.js1 KB—✓1st
https://vestacp.com/_nuxt/DyZYcJTn.js1 KB—✓1st
https://vestacp.com/_nuxt/DdR4mIQx.js7 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
35 resources · 1.5 MB · 152 KB savings available
REVIEW
35 resources · 1.5 MB · 152 KB savings available
Warning::
Page weight 481 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
35 resources · 1.5 MiB · 14 third-party 480.8 KiB over 1MB target
Image 73% · 1.1 MiB
JavaScript 25% · 378.5 KiB
Document 2% · 32.2 KiB
Other 0% · 1.7 KiB

~152.1 KiB of savings available

Remove unused JavaScript: 152.1 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 (277.3 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+
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
4 hints, 0 missing preconnects
PASS
4 hints, 0 missing preconnects
Info::
Page uses 4 resource hint(s)

Current Resource Hints

preconnect
—
preload
—
dns-prefetch
—
prefetch
4

4 resource hints configured

A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
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
35 requests over 1872ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 1.0 s LCP 1.0 shttps://vestacp.com// https://vestacp.com/ — 200 — 32.2 KiB — 94 ms — h2https://vestacp.com/_nuxt/rPnXxMxj.js/_nuxt/rPnXxMxj.js https://vestacp.com/_nuxt/rPnXxMxj.js — 200 — 70.8 KiB — 85 ms — h2https://vestacp.com/_nuxt/CEZYHrKn.js/_nuxt/CEZYHrKn.js https://vestacp.com/_nuxt/CEZYHrKn.js — 200 — 19.7 KiB — 85 ms — h2https://vestacp.com/_nuxt/DyZYcJTn.js/_nuxt/DyZYcJTn.js https://vestacp.com/_nuxt/DyZYcJTn.js — 200 — 839 B — 85 ms — h2https://vestacp.com/_nuxt/BS0k4P0n.js/_nuxt/BS0k4P0n.js https://vestacp.com/_nuxt/BS0k4P0n.js — 200 — 801 B — 85 ms — h2https://vestacp.com/_nuxt/BmEsiRZl.js/_nuxt/BmEsiRZl.js https://vestacp.com/_nuxt/BmEsiRZl.js — 200 — 705 B — 84 ms — h2https://vestacp.com/_nuxt/BOcsuxXn.js/_nuxt/BOcsuxXn.js https://vestacp.com/_nuxt/BOcsuxXn.js — 200 — 622 B — 84 ms — h2https://vestacp.com/_nuxt/BkaoS0Km.js/_nuxt/BkaoS0Km.js https://vestacp.com/_nuxt/BkaoS0Km.js — 200 — 727 B — 84 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 — 75.6 KiB — 65 ms — h2https://vestacp.com/_nuxt/home-world.ChFa2ByE.png/_nuxt/home-world.ChFa2ByE.png https://vestacp.com/_nuxt/home-world.ChFa2ByE.png — 200 — 451.7 KiB — 111 ms — h2https://vestacp.com/_nuxt/monitoring.CVQJKGC1.png/_nuxt/monitoring.CVQJKGC1.png https://vestacp.com/_nuxt/monitoring.CVQJKGC1.png — 200 — 154.4 KiB — 107 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 — 114 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 — 118.1 KiB — 191 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 — 107 ms — h2https://vestacp.com/_nuxt/monitoring.CVQJKGC1.png/_nuxt/monitoring.CVQJKGC1.png https://vestacp.com/_nuxt/monitoring.CVQJKGC1.png — 200 — 0 B — 106 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 — 113 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 — 721 B — 30 ms — h3https://vestacp.com/_nuxt/DdR4mIQx.js/_nuxt/DdR4mIQx.js https://vestacp.com/_nuxt/DdR4mIQx.js — 200 — 6.5 KiB — 31 ms — h3https://vestacp.com/_nuxt/dRt0vNiR.js/_nuxt/dRt0vNiR.js https://vestacp.com/_nuxt/dRt0vNiR.js — 200 — 1.1 KiB — 34 ms — h3https://vestacp.com/_nuxt/D-mzY0GV.js/_nuxt/D-mzY0GV.js https://vestacp.com/_nuxt/D-mzY0GV.js — 200 — 597 B — 34 ms — h3https://www.googletagmanager.com/gtag/js?id=G-V7WXT7XQX3&cx=c&gtm=4e64m0h2www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-V7WXT7XQX3&cx=c&gtm=4e64m0h2 — 200 — 156.4 KiB — 69 ms — h2
0 ms 500 ms 1.0 s 1.5 s FCP 1.0 s LCP 1.0 shttps://vestacp.com// https://vestacp.com/ — 200 — 32.2 KiB — 94 ms — h2https://vestacp.com/_nuxt/rPnXxMxj.js/_nuxt/rPnXxMxj.js https://vestacp.com/_nuxt/rPnXxMxj.js — 200 — 70.8 KiB — 85 ms — h2https://vestacp.com/_nuxt/CEZYHrKn.js/_nuxt/CEZYHrKn.js https://vestacp.com/_nuxt/CEZYHrKn.js — 200 — 19.7 KiB — 85 ms — h2https://vestacp.com/_nuxt/DyZYcJTn.js/_nuxt/DyZYcJTn.js https://vestacp.com/_nuxt/DyZYcJTn.js — 200 — 839 B — 85 ms — h2https://vestacp.com/_nuxt/BS0k4P0n.js/_nuxt/BS0k4P0n.js https://vestacp.com/_nuxt/BS0k4P0n.js — 200 — 801 B — 85 ms — h2https://vestacp.com/_nuxt/BmEsiRZl.js/_nuxt/BmEsiRZl.js https://vestacp.com/_nuxt/BmEsiRZl.js — 200 — 705 B — 84 ms — h2https://vestacp.com/_nuxt/BOcsuxXn.js/_nuxt/BOcsuxXn.js https://vestacp.com/_nuxt/BOcsuxXn.js — 200 — 622 B — 84 ms — h2https://vestacp.com/_nuxt/BkaoS0Km.js/_nuxt/BkaoS0Km.js https://vestacp.com/_nuxt/BkaoS0Km.js — 200 — 727 B — 84 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 — 75.6 KiB — 65 ms — h2https://vestacp.com/_nuxt/home-world.ChFa2ByE.png/_nuxt/home-world.ChFa2ByE.png https://vestacp.com/_nuxt/home-world.ChFa2ByE.png — 200 — 451.7 KiB — 111 ms — h2https://vestacp.com/_nuxt/monitoring.CVQJKGC1.png/_nuxt/monitoring.CVQJKGC1.png https://vestacp.com/_nuxt/monitoring.CVQJKGC1.png — 200 — 154.4 KiB — 107 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 — 114 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 — 118.1 KiB — 191 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 — 107 ms — h2https://vestacp.com/_nuxt/monitoring.CVQJKGC1.png/_nuxt/monitoring.CVQJKGC1.png https://vestacp.com/_nuxt/monitoring.CVQJKGC1.png — 200 — 0 B — 106 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 — 113 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
85% of JavaScript execution is third-party
First-party Third-party 749ms · 276KB · $10/mo
Unattributable
Other
Costly
Execution 403ms
Transfer 0 KB
Monthly Cost $5/mo
Google Tag Manager
Tag Manager
Optional
Execution 158ms
Transfer 156 KB
Unused 42%
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 125ms
Transfer 118 KB
Unused 54%
Monthly Cost $2/mo
defender.belljar.com
Other
Optional
Execution 63ms
Transfer 2 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Unattributable adds 403ms and costs ~$5/month

85% 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 403ms 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

54% of Google Tag Manager'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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