speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time.

Charts Measurement runs Embed a score

festival-cannes.com

https://www.festival-cannes.com/

58 82 96 100 ✗AXE !CWV

Ranks Overall #12 Important #9

Data from Sep 4, 2026, 11:02 AM UTC old Measured once a day · 1 run since Sep 4, 2026

Test elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis

Stack

Cloudflare Hosted by Cloudflare

Core Web Vitals field data, url-level

Real Chrome users, 28-day window (2026-08-06 → 2026-09-02).

LCP 2.99 s needs-improvement
INP 83 ms good
CLS 0.010 good

Lighthouse Scores

58
Performance
no change
82
Accessibility
no change
96
Best Practices
no change
100
SEO
no change

Filmstrip Lighthouse, mobile

How the page drew during the measured load, at 8 points across 3.00 s.

  1. 375 ms
  2. 750 ms
  3. 1.13 s
  4. 1.50 s
  5. 1.88 s
  6. 2.25 s
  7. 2.63 s
  8. 3.00 s

Without JavaScript

This page is client rendered.

Nothing was painted until the scripts ran. This is a web performance and robustness issue!

The same load, photographed twice at 412×823: once with scripts disabled, once as rendered.

Scripts disabled
As rendered

46.1% of pixels differ — parts of the page change. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 9.87 s — — 9.87 s 9.87 s
CLS Cumulative Layout Shift 0.037 — — 0.037 0.037
TBT Total Blocking Time 681 ms — — 681 ms 681 ms
FCP First Contentful Paint 1.23 s — — 1.23 s 1.23 s
Speed Index 2.58 s — — 2.58 s 2.58 s
TTFB Time to First Byte 631 ms — — 631 ms 631 ms

LCP Subparts lab observed, unthrottled

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

element render delay 791 ms
resource load duration 32 ms
time to first byte 32 ms
resource load delay 9 ms

Field data Chrome UX Report, url-level

Real Chrome users, 28-day trailing window (2026-08-06 → 2026-09-02).

Metric p75 Rating Distribution (good / needs work / poor)
LCP CWV 2.99 s needs-improvement 66.6% good
INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run 83 ms good 94.4% good
CLS CWV 0.010 good 90.6% good
FCP 1.27 s good 86.2% good
TTFB 666 ms good 80.5% good

Lab LCP vs Field LCP

Lab 9.87 s
Field p75 2.99 s

The lab LCP is 3.3× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 2.66 MB — — 2.66 MB 2.66 MB
Requests 96 — — 96 96
Third-party Weight 158 kB — — 158 kB 158 kB
Third-party CPU 302 ms — — 302 ms 302 ms
Unused JS 136 kB — — 136 kB 136 kB
Unused CSS 15.1 kB — — 15.1 kB 15.1 kB

By resource type

  • image 74.5% 1.98 MB · 54 req
  • script 17.1% 455 kB · 21 req
  • font 4.1% 108 kB · 5 req
  • other 1.7% 46.5 kB · 3 req
  • stylesheet 1.5% 38.7 kB · 11 req
  • document 1.2% 30.7 kB · 1 req

Third parties 2 entities

158 kB transferred, 302 ms on the main thread.

piwik.pro script 99.0 kB · 296 ms CPU
mtcaptcha.com script 58.6 kB · 6 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 2.47 s — — 2.47 s 2.47 s
Long Tasks 5 — — 5 5
DOM Elements 1,523 — — 1,523 1,523
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 55 — — 55 55
A11y Failures 5 — — 5 5
A11y Failing Nodes 21 — — 21 21

Main thread work

script evaluation 1.50 s
other 381 ms
style layout 260 ms
script parse compile 181 ms
paint composite render 106 ms
parse HTML 37 ms

Axe violations axe-core 4.13.0, full rule set

55 violating nodes across 7 rules, 1696 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 33 nodes
  • serious listitem — <li> elements must be contained in a <ul> or <ol> 11 nodes
  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 5 nodes
  • serious list — <ul> and <ol> must only directly contain <li>, <script> or <template> elements 3 nodes
  • critical button-name — Buttons must have discernible text 1 node
  • moderate page-has-heading-one — Page should contain a level-one heading 1 node
  • moderate skip-link — The skip-link target should exist and be focusable 1 node

Accessibility failures 5 of 26 audits

  • listitem — List items (`<li>`) are not contained within `<ul>`, `<ol>` or `<menu>` parent elements. 11 nodes
  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 5 nodes
  • list — Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). 3 nodes
  • button-name — Buttons do not have an accessible name 1 node
  • skip-link — Skip links are not focusable. 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
Sep 4, 2026, 11:02 AM UTC 58 9.87 s 0.037 681 ms 2.66 MB 3/3 ±17 1,818 -2% 39.9s