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https://www.aljazeera.com

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
4
REVIEW
2
PASS
6
INFO
2

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

Mobile Desktop
80
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
90
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.

1.19 s

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

1.27 s

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

249 ms

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

0.002

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

2.30 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.

4.91 s

Page Load Progression

770 ms
1.5 s
2.3 s
3.1 s
3.8 s
4.6 s
5.4 s
6.2 s
Checks
14
6 PASS 2 REVIEW 4 FIX
F
Page Weight Budget
Action
6.4 MB transferred, 124 requests
FIX
6.4 MB transferred, 124 requests
Critical::
Page weighs 14.0 MB (6.4 MB transferred)
Warning::
JavaScript is 2.4 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 2.4 MB
Warning::
Images are 1.2 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.2 MB
Warning::
124 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 1.3 g CO2 per page load
6.4 MB / 2.4 MB budget
6.4 MB transferred
124 requests
1.3 g CO2 per page load
JavaScript 2.4 MiB 38%
Other 2.0 MiB 32%
Images 1.2 MiB 19%
HTML 404.4 KiB 6%
Fonts 152.7 KiB 2%
CSS 145.0 KiB 2%
Other 6.4 KiB 0%
Other 1007 B 0%
Other 419 B 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

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
73% third-party, 0 ms blocking
FIX
73% third-party, 0 ms blocking
Warning::
Third-party code accounts for 73% of page weight (4.6 MiB of 6.4 MiB)
Info::
Third-party blocking time is low (0 ms)
27%
73%
First-party Third-party
D
JS Execution Cost
Action
3053ms total JS execution
FIX
3053ms total JS execution
Warning::
https://www.aljazeera.com/: 837ms CPU time
Warning::
https://players.brightcove.net/665003303001/Ubqgml...: 766ms CPU time
Warning::
https://www.aljazeera.com/static/js/main.c92ae429....: 615ms CPU time
Warning::
Unattributable: 285ms CPU time
Info::
https://www.gstatic.com/recaptcha/releases/kUYUkUl...: 234ms CPU time
Info::
Third-party scripts: 1404ms (46% of total)

Main Thread Breakdown

Script Evaluation 43% Other 24% Style & Layout 21% Script Parsing & Compilation 5% Rendering 5%
ScriptTotalScriptingParse/CompileParty
https://www.aljazeera.com/837ms13ms10ms1st
https://players.brightcove.net/665003303001/UbqgmlUbk_default/index.min.js766ms276ms27ms3rd
https://www.aljazeera.com/static/js/main.c92ae429.js615ms502ms0ms1st
Unattributable285ms17ms0ms3rd
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js234ms207ms21ms3rd
https://www.aljazeera.com/static/js/brightcove-libs~7dbd8cdd.63f20213.chunk.js197ms171ms0ms1st
https://imasdk.googleapis.com/js/sdkloader/ima3.js63ms50ms12ms3rd
https://www.googletagmanager.com/gtag/js?id=G-XN9JB9Q0M156ms46ms10ms3rd
F
JS Bundles
Action
41 scripts, 1.2 MB unused
FIX
41 scripts, 1.2 MB unused
Warning::
https://www.gstatic.com/recaptcha/releases/kUYUkUl...: 179 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/kUYUkUl...: 179 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/kUYUkUl...: 179 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://players.brightcove.net/665003303001/Ubqgml...: 147 KB unused (44%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-XN9J...: 113 KB unused (68%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 1.2 MB
1257 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js0 KB179 KB (49%)✓3rd
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js363 KB179 KB (49%)✓3rd
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js363 KB179 KB (49%)✓3rd
https://players.brightcove.net/665003303001/UbqgmlUbk_default/index.min.js331 KB147 KB (44%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-XN9JB9Q0M1&cx=c&gtm=4e6460167 KB113 KB (68%)✓3rd
https://imasdk.googleapis.com/js/sdkloader/ima3.js147 KB78 KB (53%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-XN9JB9Q0M1167 KB69 KB (42%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-MJWQ5L2117 KB61 KB (53%)✓3rd
https://www.aljazeera.com/static/js/vendor~main~7dbd8cdd.1cbe70e4.chunk.js67 KB44 KB (66%)✓1st
https://www.aljazeera.com/static/js/component~amp-route~article-route~common-route~gallery-route~homepage-route~liveblog-route~login-rou~d82eadb2.d6057276.chunk.js54 KB31 KB (58%)✓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

B
Image Optimization
40 images, 0 KB saveable
REVIEW
40 images, 0 KB saveable
Info::
All images are well-optimized
40 images 1.2 MB
0 oversized -0 KB
21 legacy format
0 missing dimensions CLS risk
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

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 (153 KB)
PASS
8 fonts (153 KB)
Info::
8 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

8

153 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 500 ms 1.0 s FCP 1.2 s LCP 1.3 shttps://www.aljazeera.com/static/media/Roboto-Bold.52bb58c8.woff2Roboto-Bold.52bb58c8.woff2 https://www.aljazeera.com/static/media/Roboto-Bold.52bb58c8.woff2 — 22.5 KiB — 0 ms — font-display: swaphttps://www.aljazeera.com/static/media/Roboto-Regular.c5bf51b6.woff2Roboto-Regular.c5bf51b6... https://www.aljazeera.com/static/media/Roboto-Regular.c5bf51b6.woff2 — 22.4 KiB — 0 ms — font-display: swaphttps://www.aljazeera.com/static/media/Roboto-Medium.15431381.woff2Roboto-Medium.15431381.... https://www.aljazeera.com/static/media/Roboto-Medium.15431381.woff2 — 22.5 KiB — 0 ms — font-display: swaphttps://www.aljazeera.com/static/media/Roboto-Black.d8e97377.woff2Roboto-Black.d8e97377.w... https://www.aljazeera.com/static/media/Roboto-Black.d8e97377.woff2 — 22.4 KiB — 0 ms — font-display: swaphttps://www.aljazeera.com/static/media/Roboto-Light.56ecfc67.woff2Roboto-Light.56ecfc67.w... https://www.aljazeera.com/static/media/Roboto-Light.56ecfc67.woff2 — 22.2 KiB — 0 ms — font-display: swapdata:application/font-woff;charset=utf-8;base64, d09GRgABAAAAAAZgABAAAAAADAAAAAAAAAAAAAAAAAAAAAAAAA…font-woff;charset=utf-8... data:application/font-woff;charset=utf-8;base64, d09GRgABAAAAAAZgABAAAAAADAAAAAAAAAAAAAAAAAAAAAAAAA… — 1.6 KiB — 0 ms — font-display: swapdata:application/font-woff;charset=utf-8;base64,d09GRgABAAAAABTsAAsAAAAAIpAAAQAAAAAAAAAAAAAAAAAAAAA…font-woff;charset=utf-8... data:application/font-woff;charset=utf-8;base64,d09GRgABAAAAABTsAAsAAAAAIpAAAQAAAAAAAAAAAAAAAAAAAAA… — 5.2 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 33.9 KiB — 0 ms — font-display: swap
Roboto-Bold.52bb58c8.woff2 woff2 swap
Size 22 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Roboto-Regular.c5bf51b6... woff2 swap
Size 22 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Roboto-Medium.15431381.... woff2 swap
Size 23 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Roboto-Black.d8e97377.w... woff2 swap
Size 22 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Roboto-Light.56ecfc67.w... woff2 swap
Size 22 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
font-woff;charset=utf-8... woff swap
Size 2 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
font-woff;charset=utf-8... woff swap
Size 5 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 34 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)

Fixing the unchecked items could save ~2 KB and ~4 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+
HTTP Caching
max-age=120 (2 minutes)
PASS
max-age=120 (2 minutes)
Info::
Cache-Control header is set
Got: max-age=120, must-revalidate
Info::
Effective TTL: 2 minutes (max-age=120)
Info::
ETag present — enables conditional (304) responses
Cache-Control

max-age=120, must-revalidate

DirectiveValueMeaning
max-age120Cache for 2 minutes
must-revalidate—Must recheck with server after expiry
Effective TTL: 120 seconds
Network Waterfall
124 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
46% of JavaScript execution is third-party
First-party Third-party 1404ms · 645KB · ر.ق69/mo
players.brightcove.net
Other
Costly
Execution 766ms
Transfer 331 KB
Unused 44%
Monthly Cost ر.ق38/mo
Unattributable
Other
Costly
Execution 285ms
Transfer 0 KB
Monthly Cost ر.ق14/mo
www.gstatic.com
Other
Costly
Execution 234ms
Transfer 0 KB
Unused 49%
Monthly Cost ر.ق12/mo
imasdk.googleapis.com
Other
Optional
Execution 63ms
Transfer 147 KB
Unused 53%
Monthly Cost ر.ق3/mo
Google Tag Manager
Tag Manager
Optional
Execution 56ms
Transfer 167 KB
Unused 42%
Monthly Cost ر.ق3/mo

These scripts may cost more than they're worth

  • players.brightcove.net adds 766ms and costs ~ر.ق38/month
  • Unattributable adds 285ms and costs ~ر.ق14/month
  • www.gstatic.com adds 234ms and costs ~ر.ق12/month

46% 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

players.brightcove.net takes 766ms 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

Unattributable takes 285ms 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.gstatic.com takes 234ms 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

53% of imasdk.googleapis.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.

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