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https://adblockplus.org

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
95
GRADE
A
FIX
0
REVIEW
2
PASS
13
INFO
2

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

Mobile Desktop
100
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
72
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
85
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.

1.26 s

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

1.46 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.

2.40 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.

1.46 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
13 PASS 2 REVIEW
C
Image Optimization
Action
26 images, 0 KB saveable
REVIEW
26 images, 0 KB saveable
Warning::
https://adblockplus.org/img/media/business-insider... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://adblockplus.org/img/footer-youtube-glyphic... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://adblockplus.org/img/footer-facebook-glyphi... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://adblockplus.org/img/footer-instagram-glyph... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://adblockplus.org/img/media/wsj-2x.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://adblockplus.org/img/footer-twitter-glyphic... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://adblockplus.org/img/adblockplus-logo-color... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://adblockplus.org/img/footer-vk-glyphicon.pn... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://adblockplus.org/img/menu-toggle-black.svg?... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://adblockplus.org/img/abb-browser-icon.svg?1... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://adblockplus.org/img/media/mediapost-2x.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://adblockplus.org/img/media/nyt-2x.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://adblockplus.org/img/media/techcrunch-2x.pn... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://adblockplus.org/img/abp-laptop.svg?1075825... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
26 images 318 KB
0 oversized -0 KB
26 legacy format
14 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

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
507ms total JS execution
REVIEW
507ms total JS execution
Warning::
Unattributable: 316ms CPU time
Info::
https://adblockplus.org/js/main.js?1535340757: 105ms CPU time
Info::
https://adblockplus.org/: 85ms CPU time
Warning::
Third-party scripts: 316ms (62% of total)

Main Thread Breakdown

Other 57% Style & Layout 25% Script Evaluation 9% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
Unattributable316ms10ms0ms3rd
https://adblockplus.org/js/main.js?1535340757105ms13ms1ms1st
https://adblockplus.org/85ms16ms7ms1st
A+
Page Weight Budget
398 KB transferred, 42 requests
PASS
398 KB transferred, 42 requests
Info::
Page weighs 839 KB (398 KB transferred)
Info::
42 HTTP requests
Info::
Estimated 0.08 g CO2 per page load
398 KB / 2.4 MB budget
398 KB transferred
42 requests
0.08 g CO2 per page load
Images 318.0 KiB 80%
Fonts 47.0 KiB 12%
CSS 12.0 KiB 3%
HTML 9.8 KiB 2%
JavaScript 9.4 KiB 2%
Other 1.1 KiB 0%
Other 350 B 0%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
No third-party resources
PASS
No third-party resources
Info::
No third-party resources detected
No third-party resources detected — all resources are first-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
3 fonts (47 KB)
PASS
3 fonts (47 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

47 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 500 ms 1.0 s 1.5 s FCP 1.3 s LCP 1.5 shttps://adblockplus.org/fonts/Source-Sans-Pro/700/latin.woff2latin.woff2 https://adblockplus.org/fonts/Source-Sans-Pro/700/latin.woff2 — 15.5 KiB — 93 ms — font-display: swaphttps://adblockplus.org/fonts/Source-Sans-Pro/300/latin.woff2latin.woff2 https://adblockplus.org/fonts/Source-Sans-Pro/300/latin.woff2 — 15.7 KiB — 57 ms — font-display: swaphttps://adblockplus.org/fonts/Source-Sans-Pro/400/latin.woff2latin.woff2 https://adblockplus.org/fonts/Source-Sans-Pro/400/latin.woff2 — 15.9 KiB — 88 ms — font-display: swap
latin.woff2 woff2 swap
Size 15 KB
Load time 93 ms
Start 564 ms
Risk FOUT — text flashes from fallback to web font
latin.woff2 woff2 swap
Size 16 KB
Load time 57 ms
Start 565 ms
Risk FOUT — text flashes from fallback to web font
latin.woff2 woff2 swap
Size 16 KB
Load time 88 ms
Start 565 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+
JS Bundles
5 scripts, 0 KB unused
PASS
5 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://adblockplus.org/settings.js?15353407571 KB—✓1st
https://adblockplus.org/js/vendor/bowser.js?15353407574 KB—✓1st
https://adblockplus.org/js/install-button.js?15353407571 KB—✓1st
https://adblockplus.org/js/testing/setup.js?15353407570 KB—✓1st
https://adblockplus.org/js/main.js?15353407573 KB—✓1st
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+
Page Weight Inventory
42 resources · 398 KB · 0 KB savings available
PASS
42 resources · 398 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 398 KB
42 resources · 397.8 KiB · 0 third-party Within 1MB page-weight target
Image 80% · 319.1 KiB
Font 12% · 47.0 KiB
CSS 3% · 12.0 KiB
Document 2% · 9.8 KiB
JavaScript 2% · 9.4 KiB
Other 0% · 350 B
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: Quis Lab (Plushie App)

A+
HTTP Caching
max-age=3600 (1 hour)
PASS
max-age=3600 (1 hour)
Info::
Cache-Control header is set
Got: max-age=3600
Info::
Effective TTL: 1 hour (max-age=3600)
Info::
ETag present — enables conditional (304) responses
Info::
Last-Modified header present
Cache-Control

max-age=3600

DirectiveValueMeaning
max-age3600Cache for 1 hour
Effective TTL: 3600 seconds
Network Waterfall
42 requests over 720ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 1.3 s LCP 1.5 shttps://adblockplus.org// https://adblockplus.org/ — 200 — 9.8 KiB — 98 ms — h2https://adblockplus.org/css/defaults.css?1555966099/css/defaults.css?1555966099 https://adblockplus.org/css/defaults.css?1555966099 — 200 — 2.9 KiB — 55 ms — h2https://adblockplus.org/css/fonts.css?1555966099/css/fonts.css?1555966099 https://adblockplus.org/css/fonts.css?1555966099 — 200 — 673 B — 57 ms — h2https://adblockplus.org/css/main.css?1555966099/css/main.css?1555966099 https://adblockplus.org/css/main.css?1555966099 — 200 — 4.2 KiB — 237 ms — h2https://adblockplus.org/css/cookies.css?1555966099/css/cookies.css?1555966099 https://adblockplus.org/css/cookies.css?1555966099 — 200 — 1.6 KiB — 51 ms — h2https://adblockplus.org/settings.js?1535340757/settings.js?1535340757 https://adblockplus.org/settings.js?1535340757 — 200 — 848 B — 55 ms — h2https://adblockplus.org/css/index.css?1555966099/css/index.css?1555966099 https://adblockplus.org/css/index.css?1555966099 — 200 — 2.7 KiB — 236 ms — h2https://adblockplus.org/img/adblockplus-logo-color.svg?1075825257/img/adblockplus-logo-color.svg?107... https://adblockplus.org/img/adblockplus-logo-color.svg?1075825257 — 200 — 4.3 KiB — 53 ms — h2https://adblockplus.org/img/menu-toggle-black.svg?1075825257/img/menu-toggle-black.svg?10758252... https://adblockplus.org/img/menu-toggle-black.svg?1075825257 — 200 — 257 B — 60 ms — h2https://adblockplus.org/img/premium-cookie-filled.svg?1075825257/img/premium-cookie-filled.svg?1075... https://adblockplus.org/img/premium-cookie-filled.svg?1075825257 — 200 — 8.1 KiB — 104 ms — h3https://adblockplus.org/img/hero-ui-illustration.svg?1075825257/img/hero-ui-illustration.svg?10758... https://adblockplus.org/img/hero-ui-illustration.svg?1075825257 — 200 — 30.8 KiB — 85 ms — h3https://adblockplus.org/img/ios-safari-logo.svg?1075825257/img/ios-safari-logo.svg?1075825257 https://adblockplus.org/img/ios-safari-logo.svg?1075825257 — 200 — 656 B — 48 ms — h3https://adblockplus.org/js/vendor/bowser.js?1535340757/js/vendor/bowser.js?1535340757 https://adblockplus.org/js/vendor/bowser.js?1535340757 — 200 — 4.0 KiB — 57 ms — h3https://adblockplus.org/js/install-button.js?1535340757/js/install-button.js?1535340757 https://adblockplus.org/js/install-button.js?1535340757 — 200 — 1.1 KiB — 228 ms — h3https://adblockplus.org/js/testing/setup.js?1535340757/js/testing/setup.js?1535340757 https://adblockplus.org/js/testing/setup.js?1535340757 — 200 — 425 B — 48 ms — h3https://adblockplus.org/js/main.js?1535340757/js/main.js?1535340757 https://adblockplus.org/js/main.js?1535340757 — 200 — 3.0 KiB — 62 ms — h3https://adblockplus.org/en/img/apple-app-store-badge.svg?1075825257/en/img/apple-app-store-badge.svg?1... https://adblockplus.org/en/img/apple-app-store-badge.svg?1075825257 — 200 — 3.9 KiB — 62 ms — h3https://adblockplus.org/img/abb-browser-icon.svg?1075825257/img/abb-browser-icon.svg?107582525... https://adblockplus.org/img/abb-browser-icon.svg?1075825257 — 200 — 22.8 KiB — 83 ms — h3https://adblockplus.org/en/img/google-play-badge.png?1075825257/en/img/google-play-badge.png?10758... https://adblockplus.org/en/img/google-play-badge.png?1075825257 — 200 — 14.5 KiB — 76 ms — h3https://adblockplus.org/img/samsung-internet-logo.png?1075825257/img/samsung-internet-logo.png?1075... https://adblockplus.org/img/samsung-internet-logo.png?1075825257 — 200 — 24.6 KiB — 95 ms — h3https://adblockplus.org/img/media/mediapost-2x.png/img/media/mediapost-2x.png https://adblockplus.org/img/media/mediapost-2x.png — 200 — 5.1 KiB — 85 ms — h3https://adblockplus.org/img/media/nyt-2x.png/img/media/nyt-2x.png https://adblockplus.org/img/media/nyt-2x.png — 200 — 6.5 KiB — 67 ms — h3https://adblockplus.org/img/media/wsj-2x.png/img/media/wsj-2x.png https://adblockplus.org/img/media/wsj-2x.png — 200 — 2.9 KiB — 60 ms — h3https://adblockplus.org/img/media/techcrunch-2x.png/img/media/techcrunch-2x.png https://adblockplus.org/img/media/techcrunch-2x.png — 200 — 3.5 KiB — 70 ms — h3https://adblockplus.org/img/media/business-insider-2x.png/img/media/business-insider-2x.png https://adblockplus.org/img/media/business-insider-2x.png — 200 — 4.2 KiB — 59 ms — h3https://adblockplus.org/img/rocket-illustration.svg?1075825257/img/rocket-illustration.svg?107582... https://adblockplus.org/img/rocket-illustration.svg?1075825257 — 200 — 24.4 KiB — 244 ms — h3https://adblockplus.org/img/lock-illustration.svg?1075825257/img/lock-illustration.svg?10758252... https://adblockplus.org/img/lock-illustration.svg?1075825257 — 200 — 19.5 KiB — 254 ms — h3https://adblockplus.org/img/checkmark-illustration.svg?1075825257/img/checkmark-illustration.svg?107... https://adblockplus.org/img/checkmark-illustration.svg?1075825257 — 200 — 19.4 KiB — 75 ms — h3https://adblockplus.org/img/abb-cross-promo-message.svg?1075825257/img/abb-cross-promo-message.svg?10... https://adblockplus.org/img/abb-cross-promo-message.svg?1075825257 — 200 — 6.7 KiB — 87 ms — h3https://adblockplus.org/img/pointing-arrow.svg?1075825257/img/pointing-arrow.svg?1075825257 https://adblockplus.org/img/pointing-arrow.svg?1075825257 — 200 — 937 B — 54 ms — h3
0 ms 500 ms 1.0 s 1.5 s FCP 1.3 s LCP 1.5 shttps://adblockplus.org// https://adblockplus.org/ — 200 — 9.8 KiB — 98 ms — h2https://adblockplus.org/css/defaults.css?1555966099/css/defaults.css?1555966099 https://adblockplus.org/css/defaults.css?1555966099 — 200 — 2.9 KiB — 55 ms — h2https://adblockplus.org/css/fonts.css?1555966099/css/fonts.css?1555966099 https://adblockplus.org/css/fonts.css?1555966099 — 200 — 673 B — 57 ms — h2https://adblockplus.org/css/main.css?1555966099/css/main.css?1555966099 https://adblockplus.org/css/main.css?1555966099 — 200 — 4.2 KiB — 237 ms — h2https://adblockplus.org/css/cookies.css?1555966099/css/cookies.css?1555966099 https://adblockplus.org/css/cookies.css?1555966099 — 200 — 1.6 KiB — 51 ms — h2https://adblockplus.org/settings.js?1535340757/settings.js?1535340757 https://adblockplus.org/settings.js?1535340757 — 200 — 848 B — 55 ms — h2https://adblockplus.org/css/index.css?1555966099/css/index.css?1555966099 https://adblockplus.org/css/index.css?1555966099 — 200 — 2.7 KiB — 236 ms — h2https://adblockplus.org/img/adblockplus-logo-color.svg?1075825257/img/adblockplus-logo-color.svg?107... https://adblockplus.org/img/adblockplus-logo-color.svg?1075825257 — 200 — 4.3 KiB — 53 ms — h2https://adblockplus.org/img/menu-toggle-black.svg?1075825257/img/menu-toggle-black.svg?10758252... https://adblockplus.org/img/menu-toggle-black.svg?1075825257 — 200 — 257 B — 60 ms — h2https://adblockplus.org/img/premium-cookie-filled.svg?1075825257/img/premium-cookie-filled.svg?1075... https://adblockplus.org/img/premium-cookie-filled.svg?1075825257 — 200 — 8.1 KiB — 104 ms — h3https://adblockplus.org/img/hero-ui-illustration.svg?1075825257/img/hero-ui-illustration.svg?10758... https://adblockplus.org/img/hero-ui-illustration.svg?1075825257 — 200 — 30.8 KiB — 85 ms — h3https://adblockplus.org/img/ios-safari-logo.svg?1075825257/img/ios-safari-logo.svg?1075825257 https://adblockplus.org/img/ios-safari-logo.svg?1075825257 — 200 — 656 B — 48 ms — h3https://adblockplus.org/js/vendor/bowser.js?1535340757/js/vendor/bowser.js?1535340757 https://adblockplus.org/js/vendor/bowser.js?1535340757 — 200 — 4.0 KiB — 57 ms — h3https://adblockplus.org/js/install-button.js?1535340757/js/install-button.js?1535340757 https://adblockplus.org/js/install-button.js?1535340757 — 200 — 1.1 KiB — 228 ms — h3https://adblockplus.org/js/testing/setup.js?1535340757/js/testing/setup.js?1535340757 https://adblockplus.org/js/testing/setup.js?1535340757 — 200 — 425 B — 48 ms — h3https://adblockplus.org/js/main.js?1535340757/js/main.js?1535340757 https://adblockplus.org/js/main.js?1535340757 — 200 — 3.0 KiB — 62 ms — h3https://adblockplus.org/en/img/apple-app-store-badge.svg?1075825257/en/img/apple-app-store-badge.svg?1... https://adblockplus.org/en/img/apple-app-store-badge.svg?1075825257 — 200 — 3.9 KiB — 62 ms — h3https://adblockplus.org/img/abb-browser-icon.svg?1075825257/img/abb-browser-icon.svg?107582525... https://adblockplus.org/img/abb-browser-icon.svg?1075825257 — 200 — 22.8 KiB — 83 ms — h3https://adblockplus.org/en/img/google-play-badge.png?1075825257/en/img/google-play-badge.png?10758... https://adblockplus.org/en/img/google-play-badge.png?1075825257 — 200 — 14.5 KiB — 76 ms — h3https://adblockplus.org/img/samsung-internet-logo.png?1075825257/img/samsung-internet-logo.png?1075... https://adblockplus.org/img/samsung-internet-logo.png?1075825257 — 200 — 24.6 KiB — 95 ms — h3https://adblockplus.org/img/media/mediapost-2x.png/img/media/mediapost-2x.png https://adblockplus.org/img/media/mediapost-2x.png — 200 — 5.1 KiB — 85 ms — h3https://adblockplus.org/img/media/nyt-2x.png/img/media/nyt-2x.png https://adblockplus.org/img/media/nyt-2x.png — 200 — 6.5 KiB — 67 ms — h3https://adblockplus.org/img/media/wsj-2x.png/img/media/wsj-2x.png https://adblockplus.org/img/media/wsj-2x.png — 200 — 2.9 KiB — 60 ms — h3https://adblockplus.org/img/media/techcrunch-2x.png/img/media/techcrunch-2x.png https://adblockplus.org/img/media/techcrunch-2x.png — 200 — 3.5 KiB — 70 ms — h3https://adblockplus.org/img/media/business-insider-2x.png/img/media/business-insider-2x.png https://adblockplus.org/img/media/business-insider-2x.png — 200 — 4.2 KiB — 59 ms — h3https://adblockplus.org/img/rocket-illustration.svg?1075825257/img/rocket-illustration.svg?107582... https://adblockplus.org/img/rocket-illustration.svg?1075825257 — 200 — 24.4 KiB — 244 ms — h3https://adblockplus.org/img/lock-illustration.svg?1075825257/img/lock-illustration.svg?10758252... https://adblockplus.org/img/lock-illustration.svg?1075825257 — 200 — 19.5 KiB — 254 ms — h3https://adblockplus.org/img/checkmark-illustration.svg?1075825257/img/checkmark-illustration.svg?107... https://adblockplus.org/img/checkmark-illustration.svg?1075825257 — 200 — 19.4 KiB — 75 ms — h3https://adblockplus.org/img/abb-cross-promo-message.svg?1075825257/img/abb-cross-promo-message.svg?10... https://adblockplus.org/img/abb-cross-promo-message.svg?1075825257 — 200 — 6.7 KiB — 87 ms — h3https://adblockplus.org/img/pointing-arrow.svg?1075825257/img/pointing-arrow.svg?1075825257 https://adblockplus.org/img/pointing-arrow.svg?1075825257 — 200 — 937 B — 54 ms — h3https://adblockplus.org/img/android-video-illustration.svg?1075825257/img/android-video-illustration.svg... https://adblockplus.org/img/android-video-illustration.svg?1075825257 — 200 — 87.6 KiB — 141 ms — h3https://adblockplus.org/img/abp-laptop.svg?1075825257/img/abp-laptop.svg?1075825257 https://adblockplus.org/img/abp-laptop.svg?1075825257 — 200 — 21.6 KiB — 73 ms — h3https://adblockplus.org/img/footer-twitter-glyphicon.png?1075825257/img/footer-twitter-glyphicon.png?1... https://adblockplus.org/img/footer-twitter-glyphicon.png?1075825257 — 200 — 1.1 KiB — 55 ms — h3https://adblockplus.org/img/footer-youtube-glyphicon.png?1075825257/img/footer-youtube-glyphicon.png?1... https://adblockplus.org/img/footer-youtube-glyphicon.png?1075825257 — 200 — 1.0 KiB — 50 ms — h3https://adblockplus.org/img/footer-facebook-glyphicon.png?1075825257/img/footer-facebook-glyphicon.png?... https://adblockplus.org/img/footer-facebook-glyphicon.png?1075825257 — 200 — 935 B — 87 ms — h3https://adblockplus.org/img/footer-instagram-glyphicon.png?1075825257/img/footer-instagram-glyphicon.png... https://adblockplus.org/img/footer-instagram-glyphicon.png?1075825257 — 200 — 1.1 KiB — 58 ms — h3https://adblockplus.org/img/footer-vk-glyphicon.png?1075825257/img/footer-vk-glyphicon.png?107582... https://adblockplus.org/img/footer-vk-glyphicon.png?1075825257 — 200 — 1.8 KiB — 83 ms — h3https://adblockplus.org/fonts/Source-Sans-Pro/700/latin.woff2/fonts/Source-Sans-Pro/700/latin.wo... https://adblockplus.org/fonts/Source-Sans-Pro/700/latin.woff2 — 200 — 15.5 KiB — 93 ms — h3https://adblockplus.org/fonts/Source-Sans-Pro/300/latin.woff2/fonts/Source-Sans-Pro/300/latin.wo... https://adblockplus.org/fonts/Source-Sans-Pro/300/latin.woff2 — 200 — 15.7 KiB — 57 ms — h3https://adblockplus.org/fonts/Source-Sans-Pro/400/latin.woff2/fonts/Source-Sans-Pro/400/latin.wo... https://adblockplus.org/fonts/Source-Sans-Pro/400/latin.woff2 — 200 — 15.9 KiB — 88 ms — h3https://adblockplus.org/access?entryVersion=2.0.0&scriptTime=115&loadTime=659&detectedOperatingSystem=linux&detectedBrowser=chrome&browserHeight=823&browserWidth=412&screenHeight=823&screenWidth=412&adblockPlusInstalled=false&adblockPlusPremium=false&logVersion=2.1.1&event=load&sid=GeJsJr2cyW0zoVR8FdeYCyO4v0NQGlqF&pageName=index&pageLocale=en&pagePath=%2F&urlParams=%7B%7D/access?entryVersion=2.0.0&scriptTi... https://adblockplus.org/access?entryVersion=2.0.0&scriptTime=115&loadTime=659&detectedOperatingSystem=linux&detectedBrowser=chrome&browserHeight=823&browserWidth=412&screenHeight=823&screenWidth=412&adblockPlusInstalled=false&adblockPlusPremium=false&logVersion=2.1.1&event=load&sid=GeJsJr2cyW0zoVR8FdeYCyO4v0NQGlqF&pageName=index&pageLocale=en&pagePath=%2F&urlParams=%7B%7D — 200 — 350 B — 48 ms — h3https://adblockplus.org/favicon.ico/favicon.ico https://adblockplus.org/favicon.ico — 200 — 1.1 KiB — 52 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
62% of JavaScript execution is third-party
First-party Third-party 316ms · 0KB · €3/mo
Unattributable
Other
Costly
Execution 316ms
Transfer 0 KB
Monthly Cost €3/mo

These scripts may cost more than they're worth

  • Unattributable adds 316ms and costs ~€3/month

62% 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

Unattributable takes 316ms 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

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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