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

urbanflow.art

https://urbanflow.art/

100PERF 93A11Y 96BEST 100SEO ✗AXE –CWV

Ranks Overall #1,230 Built Awesome #842

Data from Oct 5, 2026, 1:39 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

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

Stack

Eleventy 3.1.2 Built with Eleventy 3.1.2
HT Hosted by HTTP Server

Lighthouse Scores LAB Simulated

100
Performance
no change
93
Accessibility
no change
96
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 928 ms good ↑ +12 ms (+1.3%) 883 ms – 928 ms
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0.001 good → no change 0 – 0.001
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms
FCP First Contentful Paint 928 ms good ↑ +12 ms (+1.3%) 883 ms – 928 ms
Speed Index 1.34 s good ↑ +233 ms (+21%) significant 1.06 s – 1.34 s
TTFB Time to First Byte 736 ms good ↓ -2 ms (-0.3%) 692 ms – 738 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.

time to first byte 138 ms
element render delay 45 ms

Page weight

Metric Value Change / range Trend
Page Weight 4.36 MB ↓ -63.8 kB (-1.5%) 4.29 MB – 4.42 MB
Requests 18 → no change 18 – 18
Third-party Weight 0 B → no change 0 B – 0 B
Third-party CPU 0 ms → no change 0 ms – 0 ms
Unused JS 0 B → no change 0 B – 0 B
Unused CSS 0 B → no change 0 B – 0 B

By resource type

Type Transfer Share Size Requests
media 85.7% 3.71 MB 1
font 9.3% 404 kB 5
image 4.8% 207 kB 10
document 0.1% 5.2 kB 1
Total 4.36 MB 18

Page health

Metric Value Change / range Trend
Main Thread Work 372 ms ↑ +21 ms (+6.1%) 351 ms – 407 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 113 → no change 113 – 113
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 6 → no change 6 – 6
A11y Failures 2 → no change 2 – 2
A11y Failing Nodes 2 → no change 2 – 2

Main thread work

Task Time Share Duration Simulated
other 64% 239 ms
style layout 19% 71 ms
paint composite render 9% 32 ms
script evaluation 5% 18 ms
parse HTML 3% 11 ms
script parse compile 0% 1 ms
Total 372 ms

Axe violations axe-core 4.13.0, full rule set

6 violating nodes across 3 rules, 180 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 4 nodes
    Offending elements
    1. video 
      <video class="videoheader" autoplay="" muted="" loop=""> <source media="(min-width: 1200px)" src="/video/UrbanFlow_Home_Header_1080p.mp4" type="video/mp4"> <source src="/video/UrbanFlow_Home_Header_5…
    2. .single:nth-child(5) 
      <div class="single">
    3. .tiles 
      <div class="tiles">
    4. .single:nth-child(7) 
      <div class="single">
  • moderate heading-order — Heading levels should only increase by one 1 node
    Offending element
    1. h3 
      <h3><strong>· Media Art ·</strong></h3>
  • moderate landmark-one-main — Document should have one main landmark 1 node
    Offending element
    1. html 
      <html lang="en">

Accessibility failures 2 of 13 audits

  • heading-order — Heading elements are not in a sequentially-descending order 1 node
  • landmark-one-main — Document does not have a main landmark. 1 node

Best Practices failures 1 of 19 audits

  • charset — Charset declaration is missing or occurs too late in the HTML

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, 1:39 AM UTC 100 928 ms 0.001 0 ms 4.36 MB 3/3 ±0 2,621 +5% 111.5s Wayback
Sep 27, 2026, 11:42 PM UTC 100 916 ms 0.001 0 ms 4.42 MB 3/3 ±1 3,110 +25% 110.2s Wayback
Sep 20, 2026, 8:43 PM UTC 100 883 ms 0.001 0 ms 4.37 MB 3/3 ±0 2,487 0% 113.8s Wayback
Sep 13, 2026, 8:23 PM UTC 100 886 ms 0.001 0 ms 4.29 MB 3/3 ±0 2,495 0% 110.3s Wayback
Sep 6, 2026, 6:52 PM UTC 100 906 ms 0.001 0 ms 4.39 MB 3/3 ±0 2,311 -7% 110.9s Wayback
Aug 30, 2026, 5:57 PM UTC 100 902 ms 0 0 ms 4.34 MB 3/3 ±1 2,340 -6% 111.7s Wayback
Aug 21, 2026, 8:42 AM UTC 100 925 ms 0.001 0 ms 4.32 MB 3/3 ±12 2,700 +9% 111.7s Wayback

Embed this score

Use this web component to show urbanflow.art'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://urbanflow.art/"></speedlify2-score>