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

designmuseum.dk

https://designmuseum.dk/

58PERF 93A11Y 100BEST 92SEO ✗AXE ✓CWV

Ranks Overall #1,474 WordPress Showcase #5

Data from Sep 28, 2026, 11:48 PM UTC old Measured once a month · 2 runs since Sep 21, 2026

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

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

Stack

Li Hosted by Self-hosted

Filmstrip LAB Throttled

How the page drew during the measured load, at 8 points across 9.88 s. Compare this filmstrip against another site.

  1. 1.24 s
  2. 2.47 s
  3. 3.71 s
  4. 4.94 s
  5. 6.17 s
  6. 7.41 s
  7. 8.42 s
  8. 9.88 s

Lighthouse Scores LAB Simulated

58
Performance
no change
93
Accessibility
no change
100
Best Practices
no change
92
SEO
no change

Metrics LAB FIELD

Core Web Vitals: passing 3 of 3 assessed from real Chrome users.

Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-08-30 → 2026-09-26), url-level.

Metric Lab Simulated Field
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 8.26 s poor ↓ -112 ms (-1.3%) 8.26 s – 8.37 s 1.42 s good 91.5% 4.5% 4%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — 111 ms good 94.9% 4% 1.1%
CLS CWV Cumulative Layout Shift 0 good → no change 0 – 0 0 good 99.4% 0.2% 0.4%
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms n/a —
FCP First Contentful Paint 7.58 s poor ↓ -112 ms (-1.5%) 7.58 s – 7.70 s 1.05 s good 89.4% 5.2% 5.4%
Speed Index 7.58 s poor ↓ -112 ms (-1.5%) 7.58 s – 7.70 s n/a —
TTFB Time to First Byte 735 ms good ↓ -136 ms (-15.6%) 735 ms – 871 ms 405 ms good 90.4% 6.7% 3%

LCP Subparts LAB Throttled

The subparts attribute LCP to your server, resource discovery, download, or rendering. They come from one throttled load, the same one as the filmstrip, so they add up to that load’s LCP rather than the simulated Lab LCP above.

element render delay 7.37 s
time to first byte 1.05 s

LCP LAB Simulated vs LCP FIELD

Lab 8.26 s
Field p75 1.42 s

The lab LCP is 5.81× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 5.34 MB ↑ +27.7 kB (+0.5%) 5.31 MB – 5.34 MB
Requests 26 → no change 26 – 26
Third-party Weight 383 kB ↑ +60 B 383 kB – 383 kB
Third-party CPU 67 ms ↓ -0 ms (-0.3%) 67 ms – 67 ms
Unused JS 348 kB ↓ -1.0 kB (-0.3%) 348 kB – 349 kB
Unused CSS 396 kB ↑ +3 B 396 kB – 396 kB

By resource type

Type Transfer Share Size Requests
media 73.2% 3.83 MB 1
script 15.8% 827 kB 10
stylesheet 7.5% 394 kB 1
image 2.6% 135 kB 1
font 0.5% 26.2 kB 1
document 0.3% 14.2 kB 2
other 0.1% 3.6 kB 4
Total 5.34 MB 26

Third parties 2 entities

Entity Transfer Size Main thread Simulated
Amazon Web Services script 235 kB 16 ms
Cookiebot script 148 kB 51 ms
Total 383 kB 67 ms

Without JavaScript

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

Scripts disabled
As rendered

99.9% of pixels differ — they have almost nothing in common. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.

Page health

Metric Value Change / range Trend
Main Thread Work 2.06 s ↓ -71 ms (-3.3%) 2.06 s – 2.13 s
Long Tasks 5 → no change 5 – 5
DOM Elements 768 ↓ -20 (-2.5%) 768 – 788
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 13 ↓ -1 (-7.1%) 13 – 14
A11y Failures 2 → no change 2 – 2
A11y Failing Nodes 10 ↓ -1 (-9.1%) 10 – 11

Main thread work

Task Time Share Duration Simulated
script evaluation 40% 826 ms
other 25% 511 ms
style layout 15% 311 ms
script parse compile 12% 242 ms
parse HTML 5% 93 ms
paint composite render 2% 48 ms
garbage collection 1% 29 ms
Total 2.06 s

Axe violations axe-core 4.13.0, full rule set

13 violating nodes across 3 rules, 829 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 6 nodes
    Offending elements (5 of 6)
    1. #CybotCookiebotDialogBodyContentTitle 
      <div id="CybotCookiebotDialogBodyContentTitle" class="CybotCookiebotDialogBodyContentHeading" lang="en" role="heading" aria-level="2">This website uses cookies</div>
    2. #CybotCookiebotDialogBodyContentText 
      <div id="CybotCookiebotDialogBodyContentText" lang="en">
    3. .CybotCookiebotDialogBodyLevelButtonWrapper:nth-child(2) > label > .CybotCookiebotDialogBodyLevelButtonDescription 
      <strong class="CybotCookiebotDialogBodyLevelButtonDescription">Preferences</strong>
    4. .CybotCookiebotDialogBodyLevelButtonWrapper:nth-child(3) > label > .CybotCookiebotDialogBodyLevelButtonDescription 
      <strong class="CybotCookiebotDialogBodyLevelButtonDescription">Statistics</strong>
    5. .CybotCookiebotDialogBodyLevelButtonWrapper:nth-child(4) > label > .CybotCookiebotDialogBodyLevelButtonDescription 
      <strong class="CybotCookiebotDialogBodyLevelButtonDescription">Marketing</strong>
  • serious list — <ul> and <ol> must only directly contain <li>, <script> or <template> elements 4 nodes
    Offending elements
    1. #menu-item-6 > .sub-menu 
      <ul class="sub-menu">
    2. #menu-item-7 > .sub-menu 
      <ul class="sub-menu">
    3. #menu-item-179 > .sub-menu 
      <ul class="sub-menu">
    4. #menu-item-64687 > .sub-menu 
      <ul class="sub-menu">
  • moderate region — All page content should be contained by landmarks 3 nodes
    Offending elements
    1. .skip-to-content-link 
      <a class="skip-to-content-link" href="#main">Skip to content</a>
    2. #frontpage_video 
      <div id="frontpage_video" class="frontpage_video">
    3. .app__fifth-element 
      <div class="app__fifth-element"> <div id="fifth-element"><canvas id="defaultCanvas0" class="p5Canvas" style="width: 412px; height: 823px;" width="412" height="823"></canvas></div> </div>

Accessibility failures 2 of 29 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 6 nodes
  • list — Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). 4 nodes

Best Practices failures 1 of 20 audits

  • valid-source-maps — Missing source maps for large first-party JavaScript 1 item

SEO failures 1 of 10 audits

  • meta-description — Document does not have a meta description

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Field history 25 weeks

Weekly p75 from the CrUX History API, backfilled in a single request.

Week ending LCPINPCLSFCPTTFB
2026-10-03 1.41 s 109 ms 0 1.04 s 404 ms
2026-09-26 1.42 s 111 ms 0 1.05 s 405 ms
2026-09-19 1.45 s 110 ms 0 1.09 s 429 ms
2026-09-12 1.52 s 112 ms 0 1.13 s 467 ms
2026-09-05 1.55 s 115 ms 0 1.18 s 502 ms
2026-08-29 1.55 s 113 ms 0 1.17 s 503 ms
2026-08-22 1.56 s 114 ms 0 1.19 s 498 ms
2026-08-15 1.55 s 116 ms 0 1.16 s 480 ms
2026-08-08 1.53 s 115 ms 0 1.14 s 457 ms
2026-08-01 1.58 s 116 ms 0 1.18 s 467 ms
2026-07-25 1.56 s 117 ms 0 1.16 s 462 ms
2026-07-18 1.60 s 113 ms 0 1.19 s 468 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Sep 28, 2026, 11:48 PM UTC 58 8.26 s 0 0 ms 5.34 MB 3/3 ±13 2,489 0% 84.6s Wayback
Sep 21, 2026, 11:05 PM UTC 58 8.37 s 0 0 ms 5.31 MB 3/3 ±13 2,472 -1% 90.4s Wayback