Performance
· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
5.01 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
20.86 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.61 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.009
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
7.87 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.
23.14 s
Page Load Progression
402 ms
805 ms
1.2 s
1.6 s 2.0 s 2.4 s 2.8 s
3.2 sFPage Weight BudgetAction3.8 MB transferred, 199 requestsFIX
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction8652ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 1469ms | 231ms | 0ms | 3rd |
| https://www.euronews.com/ | 1351ms | 39ms | 10ms | 3rd |
| https://ssl.p.jwpcdn.com/player/v/8.46.2/provider.hlsjs.js | 1037ms | 730ms | 70ms | 3rd |
| https://ssl.p.jwpcdn.com/player/services/vertical-video/v/0/ab/index.js | 483ms | 281ms | 64ms | 3rd |
| https://www.euronews.com/build/c0de44d07475b825d642-main.js | 445ms | 311ms | 11ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604100101/pubads_impl.js | 335ms | 238ms | 86ms | 3rd |
| https://sdk.privacy-center.org/sdk/d4911c3d5b4b9a80b40e05167f53d1b1e8da81f3/modern/ui-web-en-web.d4911c3d5b4b9a80b40e05167f53d1b1e8da81f3.js | 313ms | 146ms | 31ms | 3rd |
| https://scripts.opti-digital.com/modules/?site=euronews | 295ms | 238ms | 1ms | 3rd |
| https://sdk.privacy-center.org/sdk/d4911c3d5b4b9a80b40e05167f53d1b1e8da81f3/modern/sdk.d4911c3d5b4b9a80b40e05167f53d1b1e8da81f3.js | 294ms | 241ms | 52ms | 3rd |
| https://scripts.opti-digital.com/lib/?site=euronews&lib=launcher&v=5.3.5 | 260ms | 94ms | 2ms | 3rd |
Showing top 10 of 30 scripts
DJS BundlesAction70 scripts, 469 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604100101/pubads_impl.js | 186 KB | 132 KB (71%) | ✓ | 3rd |
| https://ssl.p.jwpcdn.com/player/v/8.46.2/provider.hlsjs.js | 139 KB | 83 KB (60%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-1055912344 | 144 KB | 63 KB (44%) | ✓ | 3rd |
| https://scripts.opti-digital.com/lib/?site=euronews&lib=launcher&v=5.3.5 | 99 KB | 55 KB (56%) | ✓ | 3rd |
| https://ssl.p.jwpcdn.com/player/services/vertical-video/v/0/ab/index.js | 69 KB | 46 KB (66%) | ✓ | 3rd |
| https://sdk.privacy-center.org/sdk/d4911c3d5b4b9a80b40e05167f53d1b1e8da81f3/modern/sdk.d4911c3d5b4b9a80b40e05167f53d1b1e8da81f3.js | 101 KB | 45 KB (45%) | ✓ | 3rd |
| https://cdn.jwplayer.com/v2/sites/6HUPuXLy/player.js | 68 KB | 23 KB (34%) | ✓ | 3rd |
| https://ats-wrapper.privacymanager.io/ats-modules/1ce4ee76-b856-49c4-b2c3-c955116dc590/ats.js | 39 KB | 22 KB (57%) | ✓ | 3rd |
| https://static.chartbeat.com/js/chartbeat_mab.js | 10 KB | — | ✓ | 3rd |
| https://www.euronews.com/build/0f0230a11afedd2a0d4a-287.js | 1 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
FPage Weight InventoryAction199 resources · 3.8 MB · 469 KB savings availableFIX
~468.7 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 199 resources | 3.8 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization49 images, 0 KB saveableREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (71 KB)PASS
Web fonts
4
71 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
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+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints18 hints, 0 missing preconnectsPASS
Current Resource Hints
18 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall199 requests over 4426msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 1469ms | 0 KB | — | €16/mo | Costly |
www.euronews.com www.euronews.com | Other | 1351ms | 560 KB | — | €15/mo | Costly |
ssl.p.jwpcdn.com ssl.p.jwpcdn.com | Other | 1037ms | 139 KB | 60% | €11/mo | Costly |
ssl.p.jwpcdn.com ssl.p.jwpcdn.com | Other | 483ms | 69 KB | 66% | €5/mo | Costly |
www.euronews.com www.euronews.com | Other | 445ms | 23 KB | — | €5/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 335ms | 186 KB | 71% | €4/mo | Costly |
sdk.privacy-center.org sdk.privacy-center.org | Other | 313ms | 53 KB | — | €3/mo | Costly |
scripts.opti-digital.com scripts.opti-digital.com | Other | 295ms | 15 KB | — | €3/mo | Costly |
sdk.privacy-center.org sdk.privacy-center.org | Other | 294ms | 101 KB | 45% | €3/mo | Costly |
scripts.opti-digital.com scripts.opti-digital.com | Other | 260ms | 99 KB | 56% | €3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 253ms | 144 KB | 44% | €3/mo | Costly |
euronewsfr.api.useinsider.com euronewsfr.api.useinsider.com | Other | 233ms | 76 KB | — | €3/mo | Costly |
cdn.jwplayer.com cdn.jwplayer.com | Other | 193ms | 68 KB | 34% | €2/mo | Optional |
assets.adobedtm.com assets.adobedtm.com | Other | 191ms | 53 KB | — | €2/mo | Optional |
pub.doubleverify.com pub.doubleverify.com | Other | 170ms | 34 KB | — | €2/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 143ms | 35 KB | — | €2/mo | Optional |
www.euronews.com www.euronews.com | Other | 135ms | 1 KB | — | €1/mo | Optional |
sdk.privacy-center.org sdk.privacy-center.org | Other | 130ms | 271 KB | — | €1/mo | Optional |
cdn.jwplayer.com cdn.jwplayer.com | Other | 112ms | 34 KB | — | €1/mo | Optional |
www.euronews.com www.euronews.com | Other | 108ms | 2 KB | — | €1/mo | Optional |
static.chartbeat.com static.chartbeat.com | Other | 105ms | 16 KB | — | €1/mo | Optional |
ssl.p.jwpcdn.com ssl.p.jwpcdn.com | Other | 87ms | 50 KB | — | €1/mo | Optional |
sdk.privacy-center.org sdk.privacy-center.org | Other | 78ms | 1 KB | — | €1/mo | Optional |
assets.adobedtm.com assets.adobedtm.com | Other | 71ms | 2 KB | — | €1/mo | Optional |
static.chartbeat.com static.chartbeat.com | Other | 66ms | 10 KB | — | €1/mo | Optional |
launchpad.privacymanager.io launchpad.privacymanager.io | Other | 63ms | 45 KB | — | €1/mo | Optional |
ssl.p.jwpcdn.com ssl.p.jwpcdn.com | Other | 62ms | 18 KB | — | €1/mo | Optional |
ats-wrapper.privacymanager.io ats-wrapper.privacymanager.io | Other | 59ms | 39 KB | 57% | €1/mo | Optional |
www.euronews.com www.euronews.com | Other | 57ms | 4 KB | — | €1/mo | Optional |
sdk.privacy-center.org sdk.privacy-center.org | Other | 53ms | 16 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 1469ms and costs ~€16/month
- www.euronews.com adds 1351ms and costs ~€15/month
- ssl.p.jwpcdn.com adds 1037ms and costs ~€11/month
- ssl.p.jwpcdn.com adds 483ms and costs ~€5/month
- www.euronews.com adds 445ms and costs ~€5/month
- securepubads.g.doubleclick.net adds 335ms and costs ~€4/month
- sdk.privacy-center.org adds 313ms and costs ~€3/month
- scripts.opti-digital.com adds 295ms and costs ~€3/month
- sdk.privacy-center.org adds 294ms and costs ~€3/month
- scripts.opti-digital.com adds 260ms and costs ~€3/month
- Google Tag Manager adds 253ms and costs ~€3/month
- euronewsfr.api.useinsider.com adds 233ms and costs ~€3/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
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 1469ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
www.euronews.com takes 1351ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
ssl.p.jwpcdn.com takes 1037ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
60% of ssl.p.jwpcdn.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
ssl.p.jwpcdn.com takes 483ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
66% of ssl.p.jwpcdn.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
www.euronews.com takes 445ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
securepubads.g.doubleclick.net takes 335ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
71% of securepubads.g.doubleclick.net's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
sdk.privacy-center.org takes 313ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
scripts.opti-digital.com takes 295ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
sdk.privacy-center.org takes 294ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
scripts.opti-digital.com takes 260ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
56% of scripts.opti-digital.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
Google Tag Manager takes 253ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
euronewsfr.api.useinsider.com takes 233ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
57% of ats-wrapper.privacymanager.io's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev