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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akkordeonvirtuosi.de

https://akkordeonvirtuosi.de/

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

Ranks Overall #809 Built Awesome #596

Data from Oct 2, 2026, 12:35 AM UTC old Measured once a week · 7 runs since Aug 20, 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 3.0.0 Built with Eleventy 3.0.0
GitHub Pages Hosted by GitHub Pages

Lighthouse Scores LAB Simulated

93
Performance
no change
100
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 3.23 s needs work ↑ +4 ms (+0.1%) 794 ms – 3.25 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0 good → no change 0 – 0
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms
FCP First Contentful Paint 797 ms good ↑ +11 ms (+1.4%) 783 ms – 799 ms
Speed Index 797 ms good ↑ +11 ms (+1.4%) 783 ms – 799 ms
TTFB Time to First Byte 609 ms good ↑ +4 ms (+0.7%) 602 ms – 620 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.

element render delay 48 ms
time to first byte 12 ms

Page weight

Metric Value Change / range Trend
Page Weight 1.59 MB ↑ +7.6 kB (+0.5%) 1.57 MB – 1.59 MB
Requests 22 ↑ +1 (+4.8%) 19 – 22
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
script 57.5% 914 kB 5
image 32% 509 kB 5
document 4.4% 69.2 kB 2
stylesheet 3.8% 60.9 kB 2
font 2.2% 34.7 kB 1
other 0.2% 2.5 kB 6
Total 1.59 MB 22

Page health

Metric Value Change / range Trend
Main Thread Work 189 ms ↑ +9 ms (+5.1%) 135 ms – 189 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 81 → no change 81 – 81
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 3 → no change 3 – 3
A11y Failures 0 → no change 0 – 0
A11y Failing Nodes 0 → no change 0 – 0

Main thread work

Task Time Share Duration Simulated
other 62% 118 ms
style layout 21% 39 ms
parse HTML 6% 12 ms
script evaluation 6% 11 ms
paint composite render 4% 8 ms
script parse compile 1% 1 ms
Total 189 ms

Axe violations axe-core 4.13.0, full rule set

3 violating nodes across 3 rules, 229 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • critical aria-allowed-attr — Elements must only use supported ARIA attributes 1 node
    Offending element
    1. iframe >>> .ytmVideoInfoVideoTitle 
      <a class="ytmVideoInfoVideoTitle" aria-level="2" href="https://www.youtube.com/watch?v=jP8KQyBhhDc"><span class="ytAttributedStringHost ytmVideoInfoLink ytAttributedStringWhiteSpaceNoWrap" style="">J…
  • serious aria-prohibited-attr — Elements must only use permitted ARIA attributes 1 node
    Offending element
    1. iframe >>> #movie_player 
      <div class="html5-video-player ytp-hide-controls ytp-exp-bottom-control-flexbox ytp-modern-caption ytp-livebadge-color unstarted-mode ytp-small-mode" tabindex="" id="movie_player" data-version="/s/pl…
  • moderate region — All page content should be contained by landmarks 1 node
    Offending element
    1. .mobile 
      <div class="mobile">

Best Practices failures 1 of 19 audits

  • inspector-issues — Issues were logged in the `Issues` panel in Chrome Devtools 1 item

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 2, 2026, 12:35 AM UTC 93 3.23 s 0 0 ms 1.59 MB 3/3 ±7 2,448 -2% 26.1s Wayback
Sep 25, 2026, 12:30 AM UTC 93 3.23 s 0 0 ms 1.58 MB 3/3 ±7 2,432 -2% 26.1s Wayback
Sep 17, 2026, 11:26 PM UTC 93 3.23 s 0 0 ms 1.58 MB 3/3 ±7 2,338 -6% 25.6s Wayback
Sep 10, 2026, 9:29 PM UTC 100 794 ms 0 0 ms 1.58 MB 3/3 ±7 3,284 +32% 25.5s Wayback
Sep 3, 2026, 7:19 PM UTC 93 3.23 s 0 0 ms 1.58 MB 3/3 ±7 2,979 +20% 24.8s Wayback
Aug 27, 2026, 7:03 PM UTC 93 3.25 s 0 0 ms 1.58 MB 3/3 ±7 2,329 -6% 26s Wayback
Aug 20, 2026, 4:26 PM UTC 93 3.23 s 0 0 ms 1.57 MB 3/3 ±7 2,430 -2% 31.3s Wayback

Embed this score

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