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.

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markus-haack.com

https://markus-haack.com/

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

Ranks Overall #16 Built Awesome #14

Data from Oct 4, 2026, 4:34 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 3.1.6 Built with Eleventy 3.1.6
Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

100
Performance
no change
100
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 (2026-09-05 → 2026-10-02), origin-level.

Metric Lab Simulated Field
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 1.64 s good ↑ +39 ms (+2.4%) 1.39 s – 2.31 s 1.33 s good 92.9% 5% 2.1%
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 98.9% 0% 1.1%
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms n/a —
FCP First Contentful Paint 903 ms good ↓ -2 ms (-0.2%) 903 ms – 1.66 s 1.25 s good 92.2% 3.4% 4.4%
Speed Index 903 ms good ↓ -2 ms (-0.2%) 903 ms – 1.66 s n/a —
TTFB Time to First Byte 603 ms good ↓ -2 ms (-0.3%) 603 ms – 723 ms 689 ms good 81.2% 15.1% 3.7%

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 58 ms
time to first byte 4 ms

LCP LAB Simulated vs LCP FIELD

Lab 1.64 s
Field p75 1.33 s

The lab LCP is 1.23× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 226 kB ↑ +133 B (+0.1%) 225 kB – 226 kB
Requests 15 → no change 15 – 15
Third-party Weight 4.9 kB ↓ -2 B 4.5 kB – 4.9 kB
Third-party CPU 5 ms ↑ +2 ms (+56.7%) significant 2 ms – 5 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
image 63.7% 144 kB 4
font 20.9% 47.1 kB 2
stylesheet 4.4% 10.0 kB 1
script 3.9% 8.9 kB 3
other 3.6% 8.1 kB 4
document 3.5% 7.8 kB 1
Total 226 kB 15

Third parties 1 entities

Entity Transfer Size Main thread Simulated
markus-haack.org script 4.9 kB 5 ms
Total 4.9 kB 5 ms

Without JavaScript

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

Scripts disabled
As rendered

0% of pixels differ — they are identical. 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 245 ms ↑ +49 ms (+25.1%) significant 190 ms – 265 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 217 → no change 217 – 217
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 → no change 0 – 0
A11y Failures 0 → no change 0 – 0
A11y Failing Nodes 0 → no change 0 – 0

Main thread work

Task Time Share Duration Simulated
other 46% 113 ms
style layout 19% 46 ms
script evaluation 18% 44 ms
parse HTML 11% 28 ms
paint composite render 5% 12 ms
script parse compile 1% 3 ms
Total 245 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 476 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

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 1.31 s — 0 1.16 s 630 ms
2026-09-19 1.28 s — 0 1.12 s 603 ms
2026-09-12 1.18 s — 0 1.10 s 587 ms
2026-09-05 1.18 s — 0 1.04 s 557 ms
2026-08-29 1.11 s — 0 967 ms 589 ms
2026-08-22 1.10 s — 0 908 ms 598 ms
2026-08-15 1.23 s — 0 977 ms 644 ms
2026-08-08 1.21 s — 0 958 ms 629 ms
2026-08-01 1.23 s — 0 952 ms 598 ms
2026-07-25 1.19 s — 0 961 ms 567 ms
2026-07-18 1.18 s — 0 942 ms 552 ms
2026-07-11 1.18 s — 0 974 ms 569 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 4, 2026, 4:34 AM UTC 100 1.64 s 0 0 ms 226 kB 3/3 ±4 2,451 -1% 27.4s Wayback
Sep 27, 2026, 12:21 AM UTC 100 1.60 s 0 0 ms 226 kB 3/3 ±0 2,988 +20% 23.6s Wayback
Sep 19, 2026, 10:13 PM UTC 100 1.39 s 0 0 ms 226 kB 3/3 ±1 4,230 +70% 24.1s Wayback
Sep 12, 2026, 9:19 PM UTC 100 1.63 s 0 0 ms 226 kB 3/3 ±4 2,495 0% 28.1s Wayback
Sep 5, 2026, 6:03 PM UTC 99 1.64 s 0 0 ms 226 kB 3/3 ±2 2,236 -10% 24.9s Wayback
Aug 29, 2026, 5:06 PM UTC 98 2.31 s 0 0 ms 226 kB 3/3 ±5 2,649 +7% 26.5s Wayback
Aug 21, 2026, 3:12 AM UTC 99 1.66 s 0 0 ms 225 kB 3/3 ±4 2,325 -6% 25.6s Wayback

Embed this score

Use this web component to show markus-haack.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://markus-haack.com/"></speedlify2-score>