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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.

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industrialempathy.com

https://www.industrialempathy.com/

100PERF 93A11Y 100BEST 100SEO ✗AXE ✓CWV

Ranks Overall #1,190 Built Awesome #819

Data from Oct 6, 2026, 6:47 PM UTC old Measured once a week · 8 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

Vercel Hosted by Vercel

Lighthouse Scores LAB Simulated

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

Metrics LAB FIELD

Core Web Vitals: passing 2 of 3 assessed from real Chrome users.

Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-09-07 → 2026-10-04), origin-level.

Metric Lab Simulated Field
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 1.36 s good ↓ -6 ms (-0.4%) 1.36 s – 1.53 s 1.18 s good 93.3% 2.7% 4%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — — —
CLS CWV Cumulative Layout Shift 0 good → no change 0 – 0 0 good 99.4% 0% 0.6%
TBT Total Blocking Time 0 ms good → no change 0 ms – 557 ms n/a —
FCP First Contentful Paint 838 ms good ↑ +9 ms (+1.1%) 798 ms – 839 ms 1.18 s good 90.4% 4.6% 4.9%
Speed Index 838 ms good ↑ +9 ms (+1.1%) 798 ms – 2.37 s n/a —
TTFB Time to First Byte 608 ms good ↓ -6 ms (-1%) 608 ms – 635 ms 622 ms good 81.6% 13.3% 5.1%

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 74 ms
time to first byte 4 ms

LCP LAB Simulated vs LCP FIELD

Lab 1.36 s
Field p75 1.18 s

The lab LCP is 1.15× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 132 kB ↑ +171 B (+0.1%) 131 kB – 132 kB
Requests 12 → no change 12 – 12
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
font 66.6% 88.1 kB 2
other 21.3% 28.2 kB 6
script 6.9% 9.1 kB 3
document 5.1% 6.8 kB 1
Total 132 kB 12

Page health

Metric Value Change / range Trend
Main Thread Work 375 ms ↑ +14 ms (+4%) 271 ms – 1.53 s
Long Tasks 0 → no change 0 – 2
DOM Elements 228 → no change 228 – 228
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 11 → no change 11 – 11
A11y Failures 1 → no change 1 – 1
A11y Failing Nodes 11 → no change 11 – 11

Main thread work

Task Time Share Duration Simulated
other 37% 139 ms
style layout 30% 112 ms
script evaluation 24% 92 ms
parse HTML 4% 15 ms
paint composite render 3% 13 ms
script parse compile 1% 5 ms
Total 375 ms

Axe violations axe-core 4.13.0, full rule set

11 violating nodes across 1 rule, 574 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • serious link-in-text-block — Links must be distinguishable without relying on color 11 nodes
    Offending elements (5 of 11)
    1. p > a[href$="about/"][data-viewport=""] 
      <a href="/about/" data-viewport="">Malte Ubl's</a>
    2. a[href$="#software-design"] 
      <a href="#software-design" data-viewport="">large-scale software design</a>
    3. a[href$="#ai"] 
      <a href="#ai" data-viewport="">AI</a>
    4. a[href$="#web-development"] 
      <a href="#web-development" data-viewport="">web development</a>
    5. li:nth-child(4) > a[data-viewport=""][target="_blank"] 
      <a href="https://vercel.com/blog/serverless-servers-node-js-with-in-function-concurrency" target="_blank" data-viewport="">Serverless servers</a>

Accessibility failures 1 of 14 audits

  • link-in-text-block — Links rely on color to be distinguishable. 11 nodes

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
2026-09-26 1.22 s — 0 1.22 s 624 ms
2026-09-19 1.31 s — 0 1.31 s 618 ms
2026-09-12 1.31 s — 0 1.35 s 655 ms
2026-09-05 1.31 s — 0 1.34 s 602 ms
2026-08-29 1.23 s — 0 1.24 s 564 ms
2026-08-22 943 ms — 0 936 ms 542 ms
2026-08-15 992 ms — 0 943 ms 564 ms
2026-08-08 1.06 s — 0 1.06 s 613 ms
2026-08-01 1.00 s — 0 996 ms 645 ms
2026-07-25 1.10 s — 0 1.10 s 734 ms
2026-07-18 1.14 s — 0 1.14 s 734 ms
2026-07-11 1.05 s — 0 1.05 s 576 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 6, 2026, 6:47 PM UTC 100 1.36 s 0 0 ms 132 kB 3/3 ±3 2,476 0% 25.8s Wayback
Sep 29, 2026, 5:42 PM UTC 100 1.36 s 0 0 ms 132 kB 3/3 ±0 2,512 +1% 23.4s Wayback
Sep 22, 2026, 2:21 PM UTC 86 1.53 s 0 557 ms 132 kB 3/3 ±23 3,256 +31% 29.7s Wayback
Sep 15, 2026, 11:09 AM UTC 100 1.38 s 0 0 ms 132 kB 3/3 ±31 2,363 -5% 26.8s Wayback
Sep 8, 2026, 5:44 AM UTC 100 1.37 s 0 0 ms 132 kB 3/3 ±0 3,379 +36% 20.8s Wayback
Sep 1, 2026, 1:49 AM UTC 100 1.36 s 0 0 ms 131 kB 3/3 ±0 2,483 0% 21.7s Wayback
Aug 30, 2026, 11:16 PM UTC TRACING_ALREADY_STARTED: An internal Chrome error occurred. Please restart Chrome and try re-running Lighthouse. 19.5s
Aug 21, 2026, 10:45 AM UTC 100 1.36 s 0 0 ms 131 kB 3/3 ±0 2,991 +20% 20.6s Wayback

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