speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time. Follow us on Mastodon or Bluesky.

Charts Compare Measurement runs Embed a score Open to Work

celinedesign.com

https://www.celinedesign.com/

97PERF 98A11Y 100BEST 100SEO ✗AXE –CWV

Ranks Overall #1,175 Built Awesome #807

Data from Oct 5, 2026, 8:31 AM UTC old Measured once a week · 7 runs since Aug 21, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Tame the Bots · Scoring Calculator · Wayback Machine

The measuring machine was faster than most in this project.

Lighthouse benchmark index was 4,322, 74% faster than this project's median of 2,486. CPU-bound metrics — TBT, TTI, main thread work — are affected by this and may have moved without the site changing at all.

Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).

Stack

Self-hosted · Apache Hosted by Self-hosted

Lighthouse Scores LAB Simulated

97
Performance
↑ +25 (+34.7%)
98
Accessibility
no change
100
Best Practices
no change
100
SEO
no change

Metrics LAB

No field data: the Chrome UX Report is not being collected for this project, so every figure below is from the Lighthouse run.

Metric Lab Simulated
Value Change / range Trend
LCP CWV (estimate) Largest Contentful Paint 2.32 s good ↓ -6362 ms (-73.3%) 1.35 s – 8.81 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0 good → no change 0 – 0
TBT Total Blocking Time 22 ms good ↓ -18 ms (-45%) 22 ms – 209 ms
FCP First Contentful Paint 1.05 s good ↓ -188 ms (-15.2%) 987 ms – 1.51 s
Speed Index 3.42 s needs work ↓ -1155 ms (-25.2%) 3.42 s – 5.67 s
TTFB Time to First Byte 747 ms good ↑ +37 ms (+5.2%) 687 ms – 747 ms

LCP Subparts LAB Unthrottled

The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab LCP shown above is a simulated throttled estimate.

element render delay 187 ms
time to first byte 148 ms

Page weight

Metric Value Change / range Trend
Page Weight 3.81 MB ↓ -38 B 3.81 MB – 3.81 MB
Requests 31 → no change 31 – 31
Third-party Weight 0 B → no change 0 B – 0 B
Third-party CPU 0 ms → no change 0 ms – 0 ms
Unused JS 36.4 kB ↑ +4 B 36.4 kB – 36.4 kB
Unused CSS 0 B → no change 0 B – 0 B

By resource type

Type Transfer Share Size Requests
image 95.3% 3.63 MB 18
script 2.8% 107 kB 2
font 1.3% 48.8 kB 3
document 0.4% 13.8 kB 1
stylesheet 0.3% 9.7 kB 2
other <0.1% 823 B 2
Total 3.81 MB 31

Page health

Metric Value Change / range Trend
Main Thread Work 1.17 s ↓ -248 ms (-17.5%) 1.17 s – 1.99 s
Long Tasks 1 → no change 1 – 2
DOM Elements 1,010 → no change 1,010 – 1,013
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 46 → no change 46 – 46
A11y Failures 1 → no change 1 – 1
A11y Failing Nodes 1 → no change 1 – 1

Main thread work

Task Time Share Duration Simulated
other 44% 516 ms
style layout 23% 265 ms
script evaluation 21% 248 ms
paint composite render 9% 102 ms
parse HTML 1% 16 ms
script parse compile 1% 15 ms
garbage collection 1% 7 ms
Total 1.17 s

Axe violations axe-core 4.13.0, full rule set

46 violating nodes across 3 rules, 1459 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • moderate region — All page content should be contained by landmarks 43 nodes
    Offending elements (5 of 43)
    1. body > .grille-entete 
      <div class="grille-entete">
    2. .margin-top\:4:nth-child(5) > .grille-entete 
      <div class="grille-entete">
    3. .home-creation-de-site > .grille-entete 
      <div class="grille-entete"> <div></div> <div><h3 class="titre1">Nos créations de site internet</h3> <p class="margin-top:-4 max-width:none">Quelques-unes de nos réalisations :</p></div> </div>
    4. .swiper-slide-active > .grille-decalee > figure:nth-child(1) > fenetre-scroll > div:nth-child(1) 
      <div> <div class="barre-d-adresse"> <a href="https://www.bijouteriebarriere.com" class="barre-d-adresse__adresse">https://www.bijouteriebarriere.com</a> </div> </div>
    5. .swiper-slide-active > .grille-decalee > figure:nth-child(2) > fenetre-scroll > div:nth-child(1) 
      <div> <div class="barre-d-adresse"> <a href="https://www.impasse-des-parfums.com/fr/" class="barre-d-adresse__adresse">https://www.impasse-des-parfums.com/fr/</a> </div> </div>
  • moderate landmark-unique — Landmarks should have a unique role or role/label/title (i.e. accessible name) combination 2 nodes
    Offending elements
    1. .menu 
      <nav class=" menu menu--sandwich ">
    2. .swiper-slide-active > .grille-decalee > figure:nth-child(1) > fenetre-scroll > .fenetre-scroll__conteneur.js-fenetre-scroll__conteneur.simplebar-scrollable-y > .simplebar-wrapper > .simplebar-mask > .simplebar-offset > .simplebar-content-wrapper[role="region"][aria-label="scrollable content"] 
      <div class="simplebar-content-wrapper" tabindex="0" role="region" aria-label="scrollable content" style="height: 100%; overflow: hidden scroll;">
  • moderate landmark-one-main — Document should have one main landmark 1 node
    Offending element
    1. html 
      <html lang="fr">

Accessibility failures 1 of 23 audits

  • landmark-one-main — Document does not have a main landmark. 1 node

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 5, 2026, 8:31 AM UTC 97 2.32 s 0 22 ms 3.81 MB 3/3 ±28 4,322 +74% 29.9s Wayback
Sep 28, 2026, 3:59 AM UTC 72 8.68 s 0 40 ms 3.81 MB 3/3 ±53 3,170 +28% 31.2s Wayback
Sep 20, 2026, 11:04 PM UTC 97 2.27 s 0 52 ms 3.81 MB 3/3 ±30 2,363 -5% 32.2s Wayback
Sep 13, 2026, 10:59 PM UTC 94 1.35 s 0 209 ms 3.81 MB 3/3 ±25 2,960 +19% 31.3s Wayback
Sep 6, 2026, 9:08 PM UTC 97 2.26 s 0 53 ms 3.81 MB 3/3 ±30 2,325 -6% 32.7s Wayback
Aug 30, 2026, 8:43 PM UTC 70 8.81 s 0 46 ms 3.81 MB 3/3 ±30 2,943 +18% 34.2s Wayback
Aug 21, 2026, 11:29 AM UTC 97 2.26 s 0 57 ms 3.81 MB 3/3 ±30 2,491 0% 33.9s Wayback

Embed this score

Use this web component to show celinedesign.com's scores on any website, updated whenever this instance re-measures. Don’t forget to bundle the speedlify2-score.js component code into your site! 

<speedlify2-score speedlify-url="https://www.speedlify.dev/" url="https://www.celinedesign.com/"></speedlify2-score>