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

dockerwebdev.com

https://dockerwebdev.com/

100PERF 95A11Y 100BEST 100SEO !AXE –CWV

Ranks Overall #711 Built Awesome #532

Data from Oct 3, 2026, 7:48 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

Cloudflare Hosted by Cloudflare

Lighthouse Scores LAB Simulated

100
Performance
no change
95
Accessibility
no change
100
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 1.78 s good ↓ -128 ms (-6.7%) 952 ms – 2.01 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 – 73 ms
FCP First Contentful Paint 1.23 s good ↑ +311 ms (+33.9%) significant 917 ms – 1.23 s
Speed Index 1.23 s good ↑ +311 ms (+33.9%) significant 917 ms – 1.81 s
TTFB Time to First Byte 464 ms good ↓ -153 ms (-24.8%) 464 ms – 703 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 96 ms
time to first byte 14 ms

Page weight

Metric Value Change / range Trend
Page Weight 39.7 kB ↑ +239 B (+0.6%) 39.4 kB – 44.6 kB
Requests 21 → no change 21 – 21
Third-party Weight 10.4 kB → no change 10.3 kB – 11.6 kB
Third-party CPU 9 ms ↓ -2 ms (-16.1%) 7 ms – 11 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 38.2% 15.2 kB 3
other 31.2% 12.4 kB 6
document 30.6% 12.1 kB 1
Total 39.7 kB 21

Third parties 3 entities

Entity Transfer Size Main thread Simulated
Cloudflare script 10.2 kB 9 ms
Google Analytics 103 B 0 ms
cloudflareinsights.com 36 B 0 ms
Total 10.4 kB 9 ms

Page health

Metric Value Change / range Trend
Main Thread Work 426 ms ↓ -4 ms (-1%) 350 ms – 609 ms
Long Tasks 1 → no change 0 – 2
DOM Elements 355 → no change 355 – 355
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 4 → no change 4 – 4
A11y Failures 1 → no change 1 – 1
A11y Failing Nodes 3 → no change 3 – 3

Main thread work

Task Time Share Duration Simulated
other 40% 172 ms
style layout 32% 135 ms
script evaluation 14% 59 ms
paint composite render 9% 40 ms
parse HTML 4% 16 ms
script parse compile 1% 5 ms
Total 426 ms

Axe violations axe-core 4.13.0, full rule set

4 violating nodes across 2 rules, 556 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 3 nodes
    Offending elements
    1. .primary > .prices > .feature > a[data-view="buyall"] > .price > del 
      <del>$99</del>
    2. .primary > .prices > li:nth-child(2) > a[data-view="buybook"] > .price > del 
      <del>$30</del>
    3. .primary > .prices > li:nth-child(3) > a[data-view="buyvideo"] > .price > del 
      <del>$80</del>
  • moderate region — All page content should be contained by landmarks 1 node
    Offending element
    1. #sale 
      <div id="sale"><a href="/">HALF PRICE SALE NOW ON!</a></div>

Accessibility failures 1 of 19 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 3 nodes

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h3

Measurement log

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 3, 2026, 7:48 AM UTC 100 1.78 s 0 0 ms 39.7 kB 3/3 ±1 2,285 -8% 23s Wayback
Sep 26, 2026, 3:52 AM UTC 100 1.91 s 0 0 ms 39.5 kB 3/3 ±0 2,447 -2% 22.8s Wayback
Sep 19, 2026, 3:22 AM UTC 100 1.59 s 0 0 ms 39.4 kB 3/3 ±0 3,000 +21% 21.8s Wayback
Sep 12, 2026, 1:06 AM UTC 100 1.59 s 0 0 ms 39.4 kB 3/3 ±0 2,447 -2% 23.4s Wayback
Sep 4, 2026, 11:49 PM UTC 100 1.24 s 0 0 ms 39.7 kB 3/3 ±0 2,759 +11% 22.2s Wayback
Aug 28, 2026, 11:29 PM UTC 100 952 ms 0 73 ms 44.6 kB 3/3 ±1 3,625 +46% 22.5s Wayback
Aug 20, 2026, 9:27 PM UTC 99 2.01 s 0 0 ms 40.9 kB 3/3 ±1 2,327 -6% 23.5s Wayback

Embed this score

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