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https://timeout.com

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
78
GRADE
C
FIX
4
REVIEW
2
PASS
7
INFO
2

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

Mobile Desktop
67
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
83
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.
77
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.

706 ms

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

2.12 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.

0.559

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

1.03 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.

2.14 s

Page Load Progression

419 ms
838 ms
1.3 s
1.7 s
2.1 s
2.5 s
2.9 s
3.4 s
Checks
15
7 PASS 2 REVIEW 4 FIX
F
Page Weight Budget
Action
5.4 MB transferred, 89 requests
FIX
5.4 MB transferred, 89 requests
Critical::
Page weighs 7.2 MB (5.4 MB transferred)
Warning::
Images are 4.7 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 4.7 MB
Info::
89 HTTP requests
Info::
Estimated 1.1 g CO2 per page load
5.4 MB / 2.4 MB budget
5.4 MB transferred
89 requests
1.1 g CO2 per page load
Images 4.7 MiB 88%
JavaScript 407.2 KiB 7%
Fonts 174.1 KiB 3%
HTML 41.1 KiB 1%
CSS 31.8 KiB 1%
Other 25.1 KiB 0%
Other 4.9 KiB 0%
Other 1.3 KiB 0%
Other 0 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

D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (5.4 MiB of 5.4 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
Page Weight Inventory
Action
89 resources · 5.4 MB · 37 KB savings available
FIX
89 resources · 5.4 MB · 37 KB savings available
Warning::
Page weight 4.4 MB over 1MB target
Got: 5.4 MB Expected: ≤ 1 MB
Warning::
88 third-party resources (100% of weight)
Info::
6 resources over 200KB
89 resources · 5.4 MiB · 88 third-party 4.4 MiB over 1MB target
Image 88% · 4.7 MiB
JavaScript 7% · 407.8 KiB
Font 3% · 174.1 KiB
Document 1% · 41.1 KiB
CSS 1% · 31.8 KiB
Other 1% · 29.7 KiB

~37.2 KiB of savings available

Remove unused JavaScript: 37.2 KiB
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
JS Execution Cost
762ms total JS execution
REVIEW
762ms total JS execution
Warning::
https://www.timeout.com/: 567ms CPU time
Info::
Unattributable: 136ms CPU time
Info::
https://cp.timeout.com/chunks/cp-chunk-cmp-sourcep...: 60ms CPU time
Warning::
Third-party scripts: 762ms (100% of total)

Main Thread Breakdown

Other 32% Style & Layout 26% Script Evaluation 26% Rendering 11% Script Parsing & Compilation 4%
ScriptTotalScriptingParse/CompileParty
https://www.timeout.com/567ms7ms2ms3rd
Unattributable136ms8ms0ms3rd
https://cp.timeout.com/chunks/cp-chunk-cmp-sourcepoint.20260421091406-89a39e00f0.ac0804e59ea43f6cca8d.js60ms56ms0ms3rd
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
Image Optimization
32 images, 0 KB saveable
PASS
32 images, 0 KB saveable
Info::
All images are well-optimized
32 images 4.7 MB
0 oversized -0 KB
2 legacy format
0 missing dimensions CLS risk
A+
Font Loading
4 fonts (174 KB)
PASS
4 fonts (174 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

174 KB total

Render-blocking

0

of 4

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 706 ms LCP 2.1 shttps://www.timeout.com/static/fonts/franklin-gothic-urw-book.woff2franklin-gothic-urw-boo... https://www.timeout.com/static/fonts/franklin-gothic-urw-book.woff2 — 41.8 KiB — 25 ms — font-display: swaphttps://www.timeout.com/static/fonts/franklin-gothic-urw-heavy.woff2franklin-gothic-urw-hea... https://www.timeout.com/static/fonts/franklin-gothic-urw-heavy.woff2 — 45.9 KiB — 30 ms — font-display: swaphttps://www.timeout.com/static/fonts/franklin-gothic-urw-medium.woff2franklin-gothic-urw-med... https://www.timeout.com/static/fonts/franklin-gothic-urw-medium.woff2 — 41.2 KiB — 8 ms — font-display: swaphttps://www.timeout.com/static/fonts/franklin-gothic-urw-demi.woff2franklin-gothic-urw-dem... https://www.timeout.com/static/fonts/franklin-gothic-urw-demi.woff2 — 45.2 KiB — 10 ms — font-display: swap
franklin-gothic-urw-boo... woff2 swap
Size 42 KB
Load time 25 ms
Start 214 ms
Risk FOUT — text flashes from fallback to web font
franklin-gothic-urw-hea... woff2 swap
Size 46 KB
Load time 30 ms
Start 214 ms
Risk FOUT — text flashes from fallback to web font
franklin-gothic-urw-med... woff2 swap
Size 41 KB
Load time 8 ms
Start 357 ms
Risk FOUT — text flashes from fallback to web font
franklin-gothic-urw-dem... woff2 swap
Size 45 KB
Load time 10 ms
Start 358 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
36 scripts, 37 KB unused
PASS
36 scripts, 37 KB unused
Warning::
https://www.timeout.com/static/js/latevendors-f7a2...: 37 KB unused (90%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 37 KB
37 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.timeout.com/static/js/latevendors-f7a2eca8f48a03e47c96.js42 KB37 KB (90%)✓3rd
https://www.timeout.com/static/js/ipsos-iris-b168218086cdff780c40.js1 KB—✓3rd
https://www.timeout.com/static/js/newrelic-3c44568e3bfc7a546fe6.js36 KB—✓3rd
https://www.timeout.com/static/js/earlyvendors-da946d8777f91fd74084.js2 KB—✓3rd
https://www.timeout.com/static/js/init-31054309865e28e60c98.js10 KB—✓3rd
https://www.timeout.com/static/js/runtime-0cd4648388226d31f891.js3 KB—✓3rd
https://cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js42 KB—✓3rd
https://www.timeout.com/static/js/main-84378083c4f2c886a292.js3 KB—✓3rd
https://launchpad-wrapper.privacymanager.io/0f9cfa05-ace3-4dbd-911f-ff1e561c4c7a/launchpad-liveramp.js2 KB—✓3rd
https://www.timeout.com/static/js/navigation-bar-82f4c3aebf49e8b350a9.js1 KB—✓3rd

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

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
Network Waterfall
89 requests over 1278ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 706 ms LCP 2.1 shttps://timeout.com// https://timeout.com/ — 301 — 276 B — 101 ms — h2https://www.timeout.com/www.timeout.com/ https://www.timeout.com/ — 200 — 38.9 KiB — 100 ms — h2https://www.timeout.com/static/images/loading_icon.gifwww.timeout.com/static/images/loadi... https://www.timeout.com/static/images/loading_icon.gif — 200 — 7.1 KiB — 27 ms — h2https://www.timeout.com/static/js/newrelic-3c44568e3bfc7a546fe6.jswww.timeout.com/static/js/newrelic-... https://www.timeout.com/static/js/newrelic-3c44568e3bfc7a546fe6.js — 200 — 36.4 KiB — 35 ms — h2https://www.timeout.com/static/fonts/franklin-gothic-urw-book.woff2www.timeout.com/static/fonts/frankl... https://www.timeout.com/static/fonts/franklin-gothic-urw-book.woff2 — 200 — 41.8 KiB — 25 ms — h2https://www.timeout.com/static/fonts/franklin-gothic-urw-heavy.woff2www.timeout.com/static/fonts/frankl... https://www.timeout.com/static/fonts/franklin-gothic-urw-heavy.woff2 — 200 — 45.9 KiB — 30 ms — h2https://cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.jscdn.privacy-mgmt.com/unified/wrappe... https://cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js — 200 — 42.0 KiB — 35 ms — h2https://www.timeout.com/static/css/main-6e78594d95b19d86d2ce917c008c7c9f.csswww.timeout.com/static/css/main-6e7... https://www.timeout.com/static/css/main-6e78594d95b19d86d2ce917c008c7c9f.css — 200 — 13.5 KiB — 17 ms — h2https://www.timeout.com/static/css/cityhome-4d727813e18ea8c88ccf85e28de3ffb9.csswww.timeout.com/static/css/cityhome... https://www.timeout.com/static/css/cityhome-4d727813e18ea8c88ccf85e28de3ffb9.css — 200 — 11.6 KiB — 13 ms — h2https://www.timeout.com/static/js/cmp-b32bfe5b2ee6513e4e5f.jswww.timeout.com/static/js/cmp-b32bf... https://www.timeout.com/static/js/cmp-b32bfe5b2ee6513e4e5f.js — 200 — 5.4 KiB — 14 ms — h2https://www.timeout.com/static/js/earlyvendors-da946d8777f91fd74084.jswww.timeout.com/static/js/earlyvend... https://www.timeout.com/static/js/earlyvendors-da946d8777f91fd74084.js — 200 — 1.6 KiB — 15 ms — h2https://www.timeout.com/static/js/init-31054309865e28e60c98.jswww.timeout.com/static/js/init-3105... https://www.timeout.com/static/js/init-31054309865e28e60c98.js — 200 — 10.4 KiB — 17 ms — h2https://www.timeout.com/static/js/runtime-0cd4648388226d31f891.jswww.timeout.com/static/js/runtime-0... https://www.timeout.com/static/js/runtime-0cd4648388226d31f891.js — 200 — 3.4 KiB — 19 ms — h2https://media.timeout.com/images/106396553/1372/1029/image.webpmedia.timeout.com/images/106396553/... https://media.timeout.com/images/106396553/1372/1029/image.webp — 200 — 513.8 KiB — 151 ms — h2https://media.timeout.com/images/106396553/1372/772/image.webpmedia.timeout.com/images/106396553/... https://media.timeout.com/images/106396553/1372/772/image.webp — 200 — 391.2 KiB — 156 ms — h2https://www.timeout.com/static/js/latevendors-f7a2eca8f48a03e47c96.jswww.timeout.com/static/js/latevendo... https://www.timeout.com/static/js/latevendors-f7a2eca8f48a03e47c96.js — 200 — 41.5 KiB — 12 ms — h2https://www.timeout.com/static/js/main-84378083c4f2c886a292.jswww.timeout.com/static/js/main-8437... https://www.timeout.com/static/js/main-84378083c4f2c886a292.js — 200 — 2.6 KiB — 11 ms — h2https://launchpad-wrapper.privacymanager.io/0f9cfa05-ace3-4dbd-911f-ff1e561c4c7a/launchpad-liveramp.jslaunchpad-wrapper.privacymanager.io... https://launchpad-wrapper.privacymanager.io/0f9cfa05-ace3-4dbd-911f-ff1e561c4c7a/launchpad-liveramp.js — 200 — 1.8 KiB — 16 ms — h2https://www.timeout.com/static/images/newsletter/zone-newsletter/to.pngwww.timeout.com/static/images/newsl... https://www.timeout.com/static/images/newsletter/zone-newsletter/to.png — 200 — 342.2 KiB — 13 ms — h2https://media.timeout.com/images/106384731/1372/772/image.webpmedia.timeout.com/images/106384731/... https://media.timeout.com/images/106384731/1372/772/image.webp — 200 — 493.1 KiB — 61 ms — h2https://media.timeout.com/images/106390796/1372/772/image.webpmedia.timeout.com/images/106390796/... https://media.timeout.com/images/106390796/1372/772/image.webp — 200 — 294.0 KiB — 58 ms — h2https://media.timeout.com/images/106361831/1372/772/image.webpmedia.timeout.com/images/106361831/... https://media.timeout.com/images/106361831/1372/772/image.webp — 200 — 124.9 KiB — 42 ms — h2https://media.timeout.com/images/106396639/750/562/image.webpmedia.timeout.com/images/106396639/... https://media.timeout.com/images/106396639/750/562/image.webp — 200 — 200.5 KiB — 51 ms — h2https://media.timeout.com/images/106218243/380/285/image.webpmedia.timeout.com/images/106218243/... https://media.timeout.com/images/106218243/380/285/image.webp — 200 — 19.3 KiB — 41 ms — h2https://media.timeout.com/images/106396194/380/285/image.webpmedia.timeout.com/images/106396194/... https://media.timeout.com/images/106396194/380/285/image.webp — 200 — 28.5 KiB — 49 ms — h2https://media.timeout.com/images/106027484/380/285/image.webpmedia.timeout.com/images/106027484/... https://media.timeout.com/images/106027484/380/285/image.webp — 200 — 33.0 KiB — 57 ms — h2https://media.timeout.com/images/106273618/380/285/image.webpmedia.timeout.com/images/106273618/... https://media.timeout.com/images/106273618/380/285/image.webp — 200 — 41.8 KiB — 59 ms — h2https://media.timeout.com/images/106381171/750/562/image.webpmedia.timeout.com/images/106381171/... https://media.timeout.com/images/106381171/750/562/image.webp — 200 — 162.1 KiB — 65 ms — h2https://media.timeout.com/images/106346703/750/562/image.webpmedia.timeout.com/images/106346703/... https://media.timeout.com/images/106346703/750/562/image.webp — 200 — 96.4 KiB — 64 ms — h2https://media.timeout.com/images/106322383/750/562/image.webpmedia.timeout.com/images/106322383/... https://media.timeout.com/images/106322383/750/562/image.webp — 200 — 95.3 KiB — 65 ms — h2
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 706 ms LCP 2.1 shttps://timeout.com// https://timeout.com/ — 301 — 276 B — 101 ms — h2https://www.timeout.com/www.timeout.com/ https://www.timeout.com/ — 200 — 38.9 KiB — 100 ms — h2https://www.timeout.com/static/images/loading_icon.gifwww.timeout.com/static/images/loadi... https://www.timeout.com/static/images/loading_icon.gif — 200 — 7.1 KiB — 27 ms — h2https://www.timeout.com/static/js/newrelic-3c44568e3bfc7a546fe6.jswww.timeout.com/static/js/newrelic-... https://www.timeout.com/static/js/newrelic-3c44568e3bfc7a546fe6.js — 200 — 36.4 KiB — 35 ms — h2https://www.timeout.com/static/fonts/franklin-gothic-urw-book.woff2www.timeout.com/static/fonts/frankl... https://www.timeout.com/static/fonts/franklin-gothic-urw-book.woff2 — 200 — 41.8 KiB — 25 ms — h2https://www.timeout.com/static/fonts/franklin-gothic-urw-heavy.woff2www.timeout.com/static/fonts/frankl... https://www.timeout.com/static/fonts/franklin-gothic-urw-heavy.woff2 — 200 — 45.9 KiB — 30 ms — h2https://cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.jscdn.privacy-mgmt.com/unified/wrappe... https://cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js — 200 — 42.0 KiB — 35 ms — h2https://www.timeout.com/static/css/main-6e78594d95b19d86d2ce917c008c7c9f.csswww.timeout.com/static/css/main-6e7... https://www.timeout.com/static/css/main-6e78594d95b19d86d2ce917c008c7c9f.css — 200 — 13.5 KiB — 17 ms — h2https://www.timeout.com/static/css/cityhome-4d727813e18ea8c88ccf85e28de3ffb9.csswww.timeout.com/static/css/cityhome... https://www.timeout.com/static/css/cityhome-4d727813e18ea8c88ccf85e28de3ffb9.css — 200 — 11.6 KiB — 13 ms — h2https://www.timeout.com/static/js/cmp-b32bfe5b2ee6513e4e5f.jswww.timeout.com/static/js/cmp-b32bf... https://www.timeout.com/static/js/cmp-b32bfe5b2ee6513e4e5f.js — 200 — 5.4 KiB — 14 ms — h2https://www.timeout.com/static/js/earlyvendors-da946d8777f91fd74084.jswww.timeout.com/static/js/earlyvend... https://www.timeout.com/static/js/earlyvendors-da946d8777f91fd74084.js — 200 — 1.6 KiB — 15 ms — h2https://www.timeout.com/static/js/init-31054309865e28e60c98.jswww.timeout.com/static/js/init-3105... https://www.timeout.com/static/js/init-31054309865e28e60c98.js — 200 — 10.4 KiB — 17 ms — h2https://www.timeout.com/static/js/runtime-0cd4648388226d31f891.jswww.timeout.com/static/js/runtime-0... https://www.timeout.com/static/js/runtime-0cd4648388226d31f891.js — 200 — 3.4 KiB — 19 ms — h2https://media.timeout.com/images/106396553/1372/1029/image.webpmedia.timeout.com/images/106396553/... https://media.timeout.com/images/106396553/1372/1029/image.webp — 200 — 513.8 KiB — 151 ms — h2https://media.timeout.com/images/106396553/1372/772/image.webpmedia.timeout.com/images/106396553/... https://media.timeout.com/images/106396553/1372/772/image.webp — 200 — 391.2 KiB — 156 ms — h2https://www.timeout.com/static/js/latevendors-f7a2eca8f48a03e47c96.jswww.timeout.com/static/js/latevendo... https://www.timeout.com/static/js/latevendors-f7a2eca8f48a03e47c96.js — 200 — 41.5 KiB — 12 ms — h2https://www.timeout.com/static/js/main-84378083c4f2c886a292.jswww.timeout.com/static/js/main-8437... https://www.timeout.com/static/js/main-84378083c4f2c886a292.js — 200 — 2.6 KiB — 11 ms — h2https://launchpad-wrapper.privacymanager.io/0f9cfa05-ace3-4dbd-911f-ff1e561c4c7a/launchpad-liveramp.jslaunchpad-wrapper.privacymanager.io... https://launchpad-wrapper.privacymanager.io/0f9cfa05-ace3-4dbd-911f-ff1e561c4c7a/launchpad-liveramp.js — 200 — 1.8 KiB — 16 ms — h2https://www.timeout.com/static/images/newsletter/zone-newsletter/to.pngwww.timeout.com/static/images/newsl... https://www.timeout.com/static/images/newsletter/zone-newsletter/to.png — 200 — 342.2 KiB — 13 ms — h2https://media.timeout.com/images/106384731/1372/772/image.webpmedia.timeout.com/images/106384731/... https://media.timeout.com/images/106384731/1372/772/image.webp — 200 — 493.1 KiB — 61 ms — h2https://media.timeout.com/images/106390796/1372/772/image.webpmedia.timeout.com/images/106390796/... https://media.timeout.com/images/106390796/1372/772/image.webp — 200 — 294.0 KiB — 58 ms — h2https://media.timeout.com/images/106361831/1372/772/image.webpmedia.timeout.com/images/106361831/... https://media.timeout.com/images/106361831/1372/772/image.webp — 200 — 124.9 KiB — 42 ms — h2https://media.timeout.com/images/106396639/750/562/image.webpmedia.timeout.com/images/106396639/... https://media.timeout.com/images/106396639/750/562/image.webp — 200 — 200.5 KiB — 51 ms — h2https://media.timeout.com/images/106218243/380/285/image.webpmedia.timeout.com/images/106218243/... https://media.timeout.com/images/106218243/380/285/image.webp — 200 — 19.3 KiB — 41 ms — h2https://media.timeout.com/images/106396194/380/285/image.webpmedia.timeout.com/images/106396194/... https://media.timeout.com/images/106396194/380/285/image.webp — 200 — 28.5 KiB — 49 ms — h2https://media.timeout.com/images/106027484/380/285/image.webpmedia.timeout.com/images/106027484/... https://media.timeout.com/images/106027484/380/285/image.webp — 200 — 33.0 KiB — 57 ms — h2https://media.timeout.com/images/106273618/380/285/image.webpmedia.timeout.com/images/106273618/... https://media.timeout.com/images/106273618/380/285/image.webp — 200 — 41.8 KiB — 59 ms — h2https://media.timeout.com/images/106381171/750/562/image.webpmedia.timeout.com/images/106381171/... https://media.timeout.com/images/106381171/750/562/image.webp — 200 — 162.1 KiB — 65 ms — h2https://media.timeout.com/images/106346703/750/562/image.webpmedia.timeout.com/images/106346703/... https://media.timeout.com/images/106346703/750/562/image.webp — 200 — 96.4 KiB — 64 ms — h2https://media.timeout.com/images/106322383/750/562/image.webpmedia.timeout.com/images/106322383/... https://media.timeout.com/images/106322383/750/562/image.webp — 200 — 95.3 KiB — 65 ms — h2https://media.timeout.com/images/106304515/750/562/image.webpmedia.timeout.com/images/106304515/... https://media.timeout.com/images/106304515/750/562/image.webp — 200 — 191.4 KiB — 68 ms — h2https://media.timeout.com/images/106298049/750/562/image.webpmedia.timeout.com/images/106298049/... https://media.timeout.com/images/106298049/750/562/image.webp — 200 — 91.0 KiB — 65 ms — h2https://media.timeout.com/images/106251250/750/562/image.webpmedia.timeout.com/images/106251250/... https://media.timeout.com/images/106251250/750/562/image.webp — 200 — 160.5 KiB — 68 ms — h2https://media.timeout.com/images/106274068/750/562/image.webpmedia.timeout.com/images/106274068/... https://media.timeout.com/images/106274068/750/562/image.webp — 200 — 111.7 KiB — 79 ms — h2https://media.timeout.com/images/106262987/750/562/image.webpmedia.timeout.com/images/106262987/... https://media.timeout.com/images/106262987/750/562/image.webp — 200 — 107.5 KiB — 79 ms — 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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
100% of JavaScript execution is third-party
First-party Third-party 762ms · 42KB · £8/mo
www.timeout.com
Other
Costly
Execution 567ms
Transfer 39 KB
Monthly Cost £6/mo
Unattributable
Other
Optional
Execution 136ms
Transfer 0 KB
Monthly Cost £1/mo
cp.timeout.com
Other
Optional
Execution 60ms
Transfer 3 KB
Monthly Cost £1/mo

These scripts may cost more than they're worth

  • www.timeout.com adds 567ms and costs ~£6/month

100% 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

www.timeout.com takes 567ms 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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