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https://elysee.fr

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
74
GRADE
C
FIX
4
REVIEW
2
PASS
7
INFO
2

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

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

1.21 s

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

3.58 s

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

3 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.

1.40 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.

3.65 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
15
7 PASS 2 REVIEW 4 FIX
F
Page Weight Budget
Action
10.1 MB transferred, 36 requests
FIX
10.1 MB transferred, 36 requests
Critical::
Page weighs 11.6 MB (10.1 MB transferred)
Warning::
Images are 9.0 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 9.0 MB
Info::
CSS is 612 KB — consider purging unused styles
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
Got: 612 KB
Info::
36 HTTP requests
Info::
Estimated 2.1 g CO2 per page load
10.1 MB / 2.4 MB budget
10.1 MB transferred
36 requests
2.1 g CO2 per page load
Images 9.0 MiB 89%
CSS 612.1 KiB 6%
JavaScript 264.1 KiB 3%
Fonts 163.9 KiB 2%
HTML 49.8 KiB 0%
Other 484 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

Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.

Why this matters

CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.

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 (10.1 MiB of 10.1 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
Page Weight Inventory
Action
36 resources · 10.1 MB · 148 KB savings available
FIX
36 resources · 10.1 MB · 148 KB savings available
Warning::
Page weight 9.1 MB over 1MB target
Got: 10.1 MB Expected: ≤ 1 MB
Info::
~148 KB of savings available
Warning::
35 third-party resources (100% of weight)
Info::
11 resources over 200KB
36 resources · 10.1 MiB · 35 third-party 9.1 MiB over 1MB target
Image 89% · 9.0 MiB
CSS 6% · 612.1 KiB
JavaScript 3% · 264.1 KiB
Font 2% · 163.9 KiB
Document 0% · 49.8 KiB
Other 0% · 111 B

~148.4 KiB of savings available

Remove unused JavaScript: 148.4 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
Image Optimization
19 images, 0 KB saveable
REVIEW
19 images, 0 KB saveable
Warning::
https://www.elysee.fr/cdn-cgi/image/dpr=2%2Cfit=co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.elysee.fr/cdn-cgi/image/format=auto%2C... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.elysee.fr/cdn-cgi/image/format=auto%2C... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.elysee.fr/cdn-cgi/image/format=auto%2C... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.elysee.fr/cdn-cgi/image/format=auto%2C... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.elysee.fr/cdn-cgi/image/format=auto%2C... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.elysee.fr/cdn-cgi/image/fit=cover%2Cfo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.elysee.fr/cdn-cgi/image/format=auto%2C... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.elysee.fr/front/images/logoFsh.96fe322... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.elysee.fr/front/images/boutique-btn.9e... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
19 images 9.0 MB
0 oversized -0 KB
2 legacy format
10 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

C
JS Bundles
Action
8 scripts, 148 KB unused
REVIEW
8 scripts, 148 KB unused
Warning::
https://www.elysee.fr/front/js/app.0e8307de.js: 122 KB unused (70%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.elysee.fr/front/js/tarteaucitronjs/tar...: 27 KB unused (72%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.elysee.fr/front/js/tarteaucitronjs/tar...: unminified — 10 KB could be saved
Warning::
https://www.elysee.fr/front/js/tarteaucitronjs/tar...: unminified — 7 KB could be saved
Info::
Total unused JavaScript: 148 KB
148 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.elysee.fr/front/js/app.0e8307de.js174 KB122 KB (70%)✓3rd
https://www.elysee.fr/front/js/tarteaucitronjs/tarteaucitron.services.js?v=2023020337 KB27 KB (72%)✗3rd
https://www.elysee.fr/bundles/bazingajstranslation/js/translator.min.js2 KB—✓3rd
https://www.elysee.fr/translations?locales=fr&version=v3.5.812 KB—✓3rd
https://www.elysee.fr/front/js/tarteaucitronjs/tarteaucitron.js21 KB—✗3rd
https://isho.elysee.fr/gtG690.js?214 KB—✓3rd
https://www.elysee.fr/front/js/tarteaucitronjs/lang/tarteaucitron.fr.js?v=202302032 KB—✓3rd
https://isho.elysee.fr/col586a/-/1506206757?segment-site=accueil&site_type=standard&evariant=2-4&page_template=accueil&url=https%3A%2F%2Fwww.elysee.fr%2F&ss=800x600&site_entity=Elysee&pggrp=accueil&site_language=fr&pglbl=accueil&sd=24&site_target=contenu&page_name=accueil&fra=0&2 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

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+
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+
JS Execution Cost
356ms total JS execution
PASS
356ms total JS execution
Info::
https://www.elysee.fr/: 172ms CPU time
Info::
https://www.elysee.fr/front/js/app.0e8307de.js: 98ms CPU time
Info::
Unattributable: 86ms CPU time
Warning::
Third-party scripts: 356ms (100% of total)

Main Thread Breakdown

Other 33% Script Evaluation 26% Style & Layout 22% Rendering 8% Script Parsing & Compilation 6% Parse HTML & CSS 5%
ScriptTotalScriptingParse/CompileParty
https://www.elysee.fr/172ms6ms2ms3rd
https://www.elysee.fr/front/js/app.0e8307de.js98ms70ms13ms3rd
Unattributable86ms1ms0ms3rd
A+
Font Loading
3 fonts (164 KB)
PASS
3 fonts (164 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

164 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 1.0 s 2.0 s 3.0 s FCP 1.2 s LCP 3.6 sdata:font/woff2;charset=utf-8;base64,d09GMgABAAAAANsgAA8AAAACbsAAANq8AAEAAAAAAAAAAAAAAAAAAAAAAAAAAA…woff2;charset=utf-8;bas... data:font/woff2;charset=utf-8;base64,d09GMgABAAAAANsgAA8AAAACbsAAANq8AAEAAAAAAAAAAAAAAAAAAAAAAAAAAA… — 54.8 KiB — 39 ms — font-display: swapdata:font/woff2;charset=utf-8;base64,d09GMgABAAAAANrAAA8AAAACbigAANpcAAEAAAAAAAAAAAAAAAAAAAAAAAAAAA…woff2;charset=utf-8;bas... data:font/woff2;charset=utf-8;base64,d09GMgABAAAAANrAAA8AAAACbigAANpcAAEAAAAAAAAAAAAAAAAAAAAAAAAAAA… — 54.7 KiB — 38 ms — font-display: swapdata:font/woff2;charset=utf-8;base64,d09GMgABAAAAANngAA8AAAACcnwAANl8AAEAAAAAAAAAAAAAAAAAAAAAAAAAAA…woff2;charset=utf-8;bas... data:font/woff2;charset=utf-8;base64,d09GMgABAAAAANngAA8AAAACcnwAANl8AAEAAAAAAAAAAAAAAAAAAAAAAAAAAA… — 54.5 KiB — 36 ms — font-display: swap
woff2;charset=utf-8;bas... woff2 swap
Size 55 KB
Load time 39 ms
Start 344 ms
Risk FOUT — text flashes from fallback to web font
woff2;charset=utf-8;bas... woff2 swap
Size 55 KB
Load time 38 ms
Start 348 ms
Risk FOUT — text flashes from fallback to web font
woff2;charset=utf-8;bas... woff2 swap
Size 54 KB
Load time 36 ms
Start 353 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+
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+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: cegedim.cloud

Network Waterfall
36 requests over 1565ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 1.2 s LCP 3.6 shttps://elysee.fr// https://elysee.fr/ — 301 — 111 B — 57 ms — http/1.0https://www.elysee.fr/www.elysee.fr/ https://www.elysee.fr/ — 200 — 49.8 KiB — 86 ms — h2https://www.elysee.fr/front/css/fonts.03da62f5.csswww.elysee.fr/front/css/fonts.03da6... https://www.elysee.fr/front/css/fonts.03da62f5.css — 200 — 532.2 KiB — 101 ms — h2https://www.elysee.fr/front/css/app.5f5ea49d.csswww.elysee.fr/front/css/app.5f5ea49... https://www.elysee.fr/front/css/app.5f5ea49d.css — 200 — 74.9 KiB — 33 ms — h2https://www.elysee.fr/bundles/bazingajstranslation/js/translator.min.jswww.elysee.fr/bundles/bazingajstran... https://www.elysee.fr/bundles/bazingajstranslation/js/translator.min.js — 200 — 2.2 KiB — 68 ms — h2https://www.elysee.fr/translations?locales=fr&version=v3.5.8www.elysee.fr/translations?locales=... https://www.elysee.fr/translations?locales=fr&version=v3.5.8 — 200 — 11.7 KiB — 68 ms — h2https://www.elysee.fr/front/js/app.0e8307de.jswww.elysee.fr/front/js/app.0e8307de... https://www.elysee.fr/front/js/app.0e8307de.js — 200 — 174.0 KiB — 86 ms — h2https://www.elysee.fr/front/js/tarteaucitronjs/tarteaucitron.jswww.elysee.fr/front/js/tarteaucitro... https://www.elysee.fr/front/js/tarteaucitronjs/tarteaucitron.js — 200 — 20.9 KiB — 80 ms — h2https://www.elysee.fr/front/images/palais-w.f8a146b1.svgwww.elysee.fr/front/images/palais-w... https://www.elysee.fr/front/images/palais-w.f8a146b1.svg — 200 — 2.0 KiB — 33 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=1480%2Cheight=560%2Ctrim=1520%3B0%3B175%3B0%2Cfit=cover/images/default/0001/19/f1aad4ab2082255630f69765682ddfb05bcc4aee.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=1480%2Cheight=560%2Ctrim=1520%3B0%3B175%3B0%2Cfit=cover/images/default/0001/19/f1aad4ab2082255630f69765682ddfb05bcc4aee.jpg — 200 — 1.8 MiB — 101 ms — h2https://www.elysee.fr/cdn-cgi/image/dpr=2%2Cfit=cover%2Cformat=auto%2Cquality=100%2Ctrim=0%3B0%3B0%3B297%2Cheight=140/images/default/0001/19/c2121db963efd6691f1a7b8e32189ceb42cb116c.jpgwww.elysee.fr/cdn-cgi/image/dpr=2%2... https://www.elysee.fr/cdn-cgi/image/dpr=2%2Cfit=cover%2Cformat=auto%2Cquality=100%2Ctrim=0%3B0%3B0%3B297%2Cheight=140/images/default/0001/19/c2121db963efd6691f1a7b8e32189ceb42cb116c.jpg — 200 — 268.4 KiB — 66 ms — h2https://www.elysee.fr/cdn-cgi/image/fit=cover%2Cformat=auto%2Cquality=100%2Cwidth=140%2Cheight=140%2Ctrim=0%3B0%3B59%3B0/images/default/0001/19/2ef8a8120e5c1dcc149644b30c32fea9dd17882b.pngwww.elysee.fr/cdn-cgi/image/fit=cov... https://www.elysee.fr/cdn-cgi/image/fit=cover%2Cformat=auto%2Cquality=100%2Cwidth=140%2Cheight=140%2Ctrim=0%3B0%3B59%3B0/images/default/0001/19/2ef8a8120e5c1dcc149644b30c32fea9dd17882b.png — 200 — 30.1 KiB — 67 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=270%2Cheight=140%2Ctrim=202%3B0%3B101%3B0%2Cfit=cover/images/default/0001/19/99489913b9125043ef0583af37f2fed113e4381b.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=270%2Cheight=140%2Ctrim=202%3B0%3B101%3B0%2Cfit=cover/images/default/0001/19/99489913b9125043ef0583af37f2fed113e4381b.jpg — 200 — 77.6 KiB — 61 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=270%2Cheight=140%2Ctrim=304%3B0%3B0%3B0%2Cfit=cover/images/default/0001/19/2a60430317cfcde91eff4d571b83388ff170b5ea.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=270%2Cheight=140%2Ctrim=304%3B0%3B0%3B0%2Cfit=cover/images/default/0001/19/2a60430317cfcde91eff4d571b83388ff170b5ea.jpg — 200 — 93.4 KiB — 63 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=620%2Cheight=270%2Ctrim=221%3B0%3B879%3B0%2Cfit=cover/images/default/0001/13/f033afa09b68231ed674306389737e9d219161f8.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=620%2Cheight=270%2Ctrim=221%3B0%3B879%3B0%2Cfit=cover/images/default/0001/13/f033afa09b68231ed674306389737e9d219161f8.jpg — 200 — 348.8 KiB — 91 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=320%2Cheight=427/images/default/0001/13/5ef55cdf2fa5fa5ba36651cb03129f0208ccd6a6.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=320%2Cheight=427/images/default/0001/13/5ef55cdf2fa5fa5ba36651cb03129f0208ccd6a6.jpg — 200 — 294.7 KiB — 99 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=320%2Cheight=427%2Ctrim=18%3B30%3B2%3B24%2Cfit=cover/images/default/0001/13/59a0e8cf59b3e927e784a64f238295f429822f55.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=320%2Cheight=427%2Ctrim=18%3B30%3B2%3B24%2Cfit=cover/images/default/0001/13/59a0e8cf59b3e927e784a64f238295f429822f55.jpg — 200 — 105.0 KiB — 99 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=320%2Cheight=427/images/default/0001/13/35ec19a1e2d77a4e657b3317c51522223b7da8e6.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=320%2Cheight=427/images/default/0001/13/35ec19a1e2d77a4e657b3317c51522223b7da8e6.jpg — 200 — 364.4 KiB — 108 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=320%2Cheight=427/images/default/0001/13/126960028fa5eee40bb06ae0dcdf0135d2ed7544.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=320%2Cheight=427/images/default/0001/13/126960028fa5eee40bb06ae0dcdf0135d2ed7544.jpg — 200 — 167.4 KiB — 111 ms — h2https://www.elysee.fr/front/images/cocorico.cc02c59e.svgwww.elysee.fr/front/images/cocorico... https://www.elysee.fr/front/images/cocorico.cc02c59e.svg — 200 — 1.8 KiB — 109 ms — h2https://www.elysee.fr/front/images/logoFsh.96fe322e.pngwww.elysee.fr/front/images/logoFsh.... https://www.elysee.fr/front/images/logoFsh.96fe322e.png — 200 — 8.8 KiB — 109 ms — h2https://www.elysee.fr/front/images/boutique-btn.9e9ab39f.pngwww.elysee.fr/front/images/boutique... https://www.elysee.fr/front/images/boutique-btn.9e9ab39f.png — 200 — 8.3 KiB — 109 ms — h2https://isho.elysee.fr/gtG690.js?2isho.elysee.fr/gtG690.js?2 https://isho.elysee.fr/gtG690.js?2 — 200 — 14.1 KiB — 106 ms — http/1.1data:font/woff2;charset=utf-8;base64,d09GMgABAAAAANsgAA8AAAACbsAAANq8AAEAAAAAAAAAAAAAAAAAAAAAAAAAAA…data:font/woff2;charset=utf-8;base6... data:font/woff2;charset=utf-8;base64,d09GMgABAAAAANsgAA8AAAACbsAAANq8AAEAAAAAAAAAAAAAAAAAAAAAAAAAAA… — 200 — 54.8 KiB — 39 ms — datadata:font/woff2;charset=utf-8;base64,d09GMgABAAAAANrAAA8AAAACbigAANpcAAEAAAAAAAAAAAAAAAAAAAAAAAAAAA…data:font/woff2;charset=utf-8;base6... data:font/woff2;charset=utf-8;base64,d09GMgABAAAAANrAAA8AAAACbigAANpcAAEAAAAAAAAAAAAAAAAAAAAAAAAAAA… — 200 — 54.7 KiB — 38 ms — datadata:font/woff2;charset=utf-8;base64,d09GMgABAAAAANngAA8AAAACcnwAANl8AAEAAAAAAAAAAAAAAAAAAAAAAAAAAA…data:font/woff2;charset=utf-8;base6... data:font/woff2;charset=utf-8;base64,d09GMgABAAAAANngAA8AAAACcnwAANl8AAEAAAAAAAAAAAAAAAAAAAAAAAAAAA… — 200 — 54.5 KiB — 36 ms — datahttps://www.elysee.fr/front/js/tarteaucitronjs/css/tarteaucitron.css?v=20230203www.elysee.fr/front/js/tarteaucitro... https://www.elysee.fr/front/js/tarteaucitronjs/css/tarteaucitron.css?v=20230203 — 200 — 5.0 KiB — 30 ms — h2https://www.elysee.fr/front/js/tarteaucitronjs/lang/tarteaucitron.fr.js?v=20230203www.elysee.fr/front/js/tarteaucitro... https://www.elysee.fr/front/js/tarteaucitronjs/lang/tarteaucitron.fr.js?v=20230203 — 200 — 1.5 KiB — 28 ms — h2https://isho.elysee.fr/col586a/-/1506206757?segment-site=accueil&site_type=standard&evariant=2-4&page_template=accueil&url=https%3A%2F%2Fwww.elysee.fr%2F&ss=800x600&site_entity=Elysee&pggrp=accueil&site_language=fr&pglbl=accueil&sd=24&site_target=contenu&page_name=accueil&fra=0&isho.elysee.fr/col586a/-/1506206757... https://isho.elysee.fr/col586a/-/1506206757?segment-site=accueil&site_type=standard&evariant=2-4&page_template=accueil&url=https%3A%2F%2Fwww.elysee.fr%2F&ss=800x600&site_entity=Elysee&pggrp=accueil&site_language=fr&pglbl=accueil&sd=24&site_target=contenu&page_name=accueil&fra=0& — 200 — 2.5 KiB — 46 ms — http/1.1https://www.elysee.fr/front/images/favicon-32x32.9d32b752.pngwww.elysee.fr/front/images/favicon-... https://www.elysee.fr/front/images/favicon-32x32.9d32b752.png — 200 — 373 B — 26 ms — h2
0 ms 1.0 s 2.0 s 3.0 s FCP 1.2 s LCP 3.6 shttps://elysee.fr// https://elysee.fr/ — 301 — 111 B — 57 ms — http/1.0https://www.elysee.fr/www.elysee.fr/ https://www.elysee.fr/ — 200 — 49.8 KiB — 86 ms — h2https://www.elysee.fr/front/css/fonts.03da62f5.csswww.elysee.fr/front/css/fonts.03da6... https://www.elysee.fr/front/css/fonts.03da62f5.css — 200 — 532.2 KiB — 101 ms — h2https://www.elysee.fr/front/css/app.5f5ea49d.csswww.elysee.fr/front/css/app.5f5ea49... https://www.elysee.fr/front/css/app.5f5ea49d.css — 200 — 74.9 KiB — 33 ms — h2https://www.elysee.fr/bundles/bazingajstranslation/js/translator.min.jswww.elysee.fr/bundles/bazingajstran... https://www.elysee.fr/bundles/bazingajstranslation/js/translator.min.js — 200 — 2.2 KiB — 68 ms — h2https://www.elysee.fr/translations?locales=fr&version=v3.5.8www.elysee.fr/translations?locales=... https://www.elysee.fr/translations?locales=fr&version=v3.5.8 — 200 — 11.7 KiB — 68 ms — h2https://www.elysee.fr/front/js/app.0e8307de.jswww.elysee.fr/front/js/app.0e8307de... https://www.elysee.fr/front/js/app.0e8307de.js — 200 — 174.0 KiB — 86 ms — h2https://www.elysee.fr/front/js/tarteaucitronjs/tarteaucitron.jswww.elysee.fr/front/js/tarteaucitro... https://www.elysee.fr/front/js/tarteaucitronjs/tarteaucitron.js — 200 — 20.9 KiB — 80 ms — h2https://www.elysee.fr/front/images/palais-w.f8a146b1.svgwww.elysee.fr/front/images/palais-w... https://www.elysee.fr/front/images/palais-w.f8a146b1.svg — 200 — 2.0 KiB — 33 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=1480%2Cheight=560%2Ctrim=1520%3B0%3B175%3B0%2Cfit=cover/images/default/0001/19/f1aad4ab2082255630f69765682ddfb05bcc4aee.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=1480%2Cheight=560%2Ctrim=1520%3B0%3B175%3B0%2Cfit=cover/images/default/0001/19/f1aad4ab2082255630f69765682ddfb05bcc4aee.jpg — 200 — 1.8 MiB — 101 ms — h2https://www.elysee.fr/cdn-cgi/image/dpr=2%2Cfit=cover%2Cformat=auto%2Cquality=100%2Ctrim=0%3B0%3B0%3B297%2Cheight=140/images/default/0001/19/c2121db963efd6691f1a7b8e32189ceb42cb116c.jpgwww.elysee.fr/cdn-cgi/image/dpr=2%2... https://www.elysee.fr/cdn-cgi/image/dpr=2%2Cfit=cover%2Cformat=auto%2Cquality=100%2Ctrim=0%3B0%3B0%3B297%2Cheight=140/images/default/0001/19/c2121db963efd6691f1a7b8e32189ceb42cb116c.jpg — 200 — 268.4 KiB — 66 ms — h2https://www.elysee.fr/cdn-cgi/image/fit=cover%2Cformat=auto%2Cquality=100%2Cwidth=140%2Cheight=140%2Ctrim=0%3B0%3B59%3B0/images/default/0001/19/2ef8a8120e5c1dcc149644b30c32fea9dd17882b.pngwww.elysee.fr/cdn-cgi/image/fit=cov... https://www.elysee.fr/cdn-cgi/image/fit=cover%2Cformat=auto%2Cquality=100%2Cwidth=140%2Cheight=140%2Ctrim=0%3B0%3B59%3B0/images/default/0001/19/2ef8a8120e5c1dcc149644b30c32fea9dd17882b.png — 200 — 30.1 KiB — 67 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=270%2Cheight=140%2Ctrim=202%3B0%3B101%3B0%2Cfit=cover/images/default/0001/19/99489913b9125043ef0583af37f2fed113e4381b.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=270%2Cheight=140%2Ctrim=202%3B0%3B101%3B0%2Cfit=cover/images/default/0001/19/99489913b9125043ef0583af37f2fed113e4381b.jpg — 200 — 77.6 KiB — 61 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=270%2Cheight=140%2Ctrim=304%3B0%3B0%3B0%2Cfit=cover/images/default/0001/19/2a60430317cfcde91eff4d571b83388ff170b5ea.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=270%2Cheight=140%2Ctrim=304%3B0%3B0%3B0%2Cfit=cover/images/default/0001/19/2a60430317cfcde91eff4d571b83388ff170b5ea.jpg — 200 — 93.4 KiB — 63 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=620%2Cheight=270%2Ctrim=221%3B0%3B879%3B0%2Cfit=cover/images/default/0001/13/f033afa09b68231ed674306389737e9d219161f8.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=620%2Cheight=270%2Ctrim=221%3B0%3B879%3B0%2Cfit=cover/images/default/0001/13/f033afa09b68231ed674306389737e9d219161f8.jpg — 200 — 348.8 KiB — 91 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=320%2Cheight=427/images/default/0001/13/5ef55cdf2fa5fa5ba36651cb03129f0208ccd6a6.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=320%2Cheight=427/images/default/0001/13/5ef55cdf2fa5fa5ba36651cb03129f0208ccd6a6.jpg — 200 — 294.7 KiB — 99 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=320%2Cheight=427%2Ctrim=18%3B30%3B2%3B24%2Cfit=cover/images/default/0001/13/59a0e8cf59b3e927e784a64f238295f429822f55.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=320%2Cheight=427%2Ctrim=18%3B30%3B2%3B24%2Cfit=cover/images/default/0001/13/59a0e8cf59b3e927e784a64f238295f429822f55.jpg — 200 — 105.0 KiB — 99 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=320%2Cheight=427/images/default/0001/13/35ec19a1e2d77a4e657b3317c51522223b7da8e6.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=320%2Cheight=427/images/default/0001/13/35ec19a1e2d77a4e657b3317c51522223b7da8e6.jpg — 200 — 364.4 KiB — 108 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=320%2Cheight=427/images/default/0001/13/126960028fa5eee40bb06ae0dcdf0135d2ed7544.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=320%2Cheight=427/images/default/0001/13/126960028fa5eee40bb06ae0dcdf0135d2ed7544.jpg — 200 — 167.4 KiB — 111 ms — h2https://www.elysee.fr/front/images/cocorico.cc02c59e.svgwww.elysee.fr/front/images/cocorico... https://www.elysee.fr/front/images/cocorico.cc02c59e.svg — 200 — 1.8 KiB — 109 ms — h2https://www.elysee.fr/front/images/logoFsh.96fe322e.pngwww.elysee.fr/front/images/logoFsh.... https://www.elysee.fr/front/images/logoFsh.96fe322e.png — 200 — 8.8 KiB — 109 ms — h2https://www.elysee.fr/front/images/boutique-btn.9e9ab39f.pngwww.elysee.fr/front/images/boutique... https://www.elysee.fr/front/images/boutique-btn.9e9ab39f.png — 200 — 8.3 KiB — 109 ms — h2https://isho.elysee.fr/gtG690.js?2isho.elysee.fr/gtG690.js?2 https://isho.elysee.fr/gtG690.js?2 — 200 — 14.1 KiB — 106 ms — http/1.1data:font/woff2;charset=utf-8;base64,d09GMgABAAAAANsgAA8AAAACbsAAANq8AAEAAAAAAAAAAAAAAAAAAAAAAAAAAA…data:font/woff2;charset=utf-8;base6... data:font/woff2;charset=utf-8;base64,d09GMgABAAAAANsgAA8AAAACbsAAANq8AAEAAAAAAAAAAAAAAAAAAAAAAAAAAA… — 200 — 54.8 KiB — 39 ms — datadata:font/woff2;charset=utf-8;base64,d09GMgABAAAAANrAAA8AAAACbigAANpcAAEAAAAAAAAAAAAAAAAAAAAAAAAAAA…data:font/woff2;charset=utf-8;base6... data:font/woff2;charset=utf-8;base64,d09GMgABAAAAANrAAA8AAAACbigAANpcAAEAAAAAAAAAAAAAAAAAAAAAAAAAAA… — 200 — 54.7 KiB — 38 ms — datadata:font/woff2;charset=utf-8;base64,d09GMgABAAAAANngAA8AAAACcnwAANl8AAEAAAAAAAAAAAAAAAAAAAAAAAAAAA…data:font/woff2;charset=utf-8;base6... data:font/woff2;charset=utf-8;base64,d09GMgABAAAAANngAA8AAAACcnwAANl8AAEAAAAAAAAAAAAAAAAAAAAAAAAAAA… — 200 — 54.5 KiB — 36 ms — datahttps://www.elysee.fr/front/js/tarteaucitronjs/css/tarteaucitron.css?v=20230203www.elysee.fr/front/js/tarteaucitro... https://www.elysee.fr/front/js/tarteaucitronjs/css/tarteaucitron.css?v=20230203 — 200 — 5.0 KiB — 30 ms — h2https://www.elysee.fr/front/js/tarteaucitronjs/lang/tarteaucitron.fr.js?v=20230203www.elysee.fr/front/js/tarteaucitro... https://www.elysee.fr/front/js/tarteaucitronjs/lang/tarteaucitron.fr.js?v=20230203 — 200 — 1.5 KiB — 28 ms — h2https://isho.elysee.fr/col586a/-/1506206757?segment-site=accueil&site_type=standard&evariant=2-4&page_template=accueil&url=https%3A%2F%2Fwww.elysee.fr%2F&ss=800x600&site_entity=Elysee&pggrp=accueil&site_language=fr&pglbl=accueil&sd=24&site_target=contenu&page_name=accueil&fra=0&isho.elysee.fr/col586a/-/1506206757... https://isho.elysee.fr/col586a/-/1506206757?segment-site=accueil&site_type=standard&evariant=2-4&page_template=accueil&url=https%3A%2F%2Fwww.elysee.fr%2F&ss=800x600&site_entity=Elysee&pggrp=accueil&site_language=fr&pglbl=accueil&sd=24&site_target=contenu&page_name=accueil&fra=0& — 200 — 2.5 KiB — 46 ms — http/1.1https://www.elysee.fr/front/images/favicon-32x32.9d32b752.pngwww.elysee.fr/front/images/favicon-... https://www.elysee.fr/front/images/favicon-32x32.9d32b752.png — 200 — 373 B — 26 ms — h2https://www.elysee.fr/front/js/tarteaucitronjs/tarteaucitron.services.js?v=20230203www.elysee.fr/front/js/tarteaucitro... https://www.elysee.fr/front/js/tarteaucitronjs/tarteaucitron.services.js?v=20230203 — 200 — 37.2 KiB — 27 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=1400%2Cheight=559%2Ctrim=448%3B0%3B98%3B0%2Cfit=cover/images/default/0001/16/f9a538720f73d55f6ea75db13f65f9e77d1884fe.jpgwww.elysee.fr/cdn-cgi/image/format=... 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https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=1400%2Cheight=559%2Ctrim=317%3B0%3B229%3B0%2Cfit=cover/images/default/0001/16/fea4fee23a7cc6c84d6ce872e9883004bbfc674a.jpg — 200 — 1.1 MiB — 108 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=1400%2Cheight=559%2Ctrim=250%3B0%3B296%3B0%2Cfit=cover/images/default/0001/17/2159aed9fead8bffe083dcc0dd904fda75ecd3cd.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=1400%2Cheight=559%2Ctrim=250%3B0%3B296%3B0%2Cfit=cover/images/default/0001/17/2159aed9fead8bffe083dcc0dd904fda75ecd3cd.jpg — 200 — 1.2 MiB — 131 ms — h2https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=1400%2Cheight=559%2Ctrim=920%3B1%3B622%3B0%2Cfit=cover/images/default/0001/17/f894ef2710eb222918673ce67f691c16b712afd0.jpgwww.elysee.fr/cdn-cgi/image/format=... https://www.elysee.fr/cdn-cgi/image/format=auto%2Cquality=100%2Cwidth=1400%2Cheight=559%2Ctrim=920%3B1%3B622%3B0%2Cfit=cover/images/default/0001/17/f894ef2710eb222918673ce67f691c16b712afd0.jpg — 200 — 1.4 MiB — 154 ms — h2
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 356ms · 224KB · €4/mo
www.elysee.fr
Other
Optional
Execution 172ms
Transfer 50 KB
Monthly Cost €2/mo
www.elysee.fr
Other
Optional
Execution 98ms
Transfer 174 KB
Unused 70%
Monthly Cost €1/mo
Unattributable
Other
Optional
Execution 86ms
Transfer 0 KB
Monthly Cost €1/mo

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

70% of www.elysee.fr'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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