speedlify2

Lighthouse lab metrics and Chrome UX Report field data for a list of sites, recorded on every run and compared over time.

Measurement runs · Embed a score · Field data from the Chrome UX Report ·

tanks.jandewil.de

https://tanks.jandewil.de/

66 100 92 100 –CWV 3AXE

Data from Aug 21, 2026, 4:35 PM UTC — 2h old.

Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 2h

Stack

Detected on the same page load as the accessibility pass — the generator from <meta name="generator"> or the shape of the page, the host from response headers.

Eleventy 2.0.1 Built with Eleventy 2.0.1
Netlify Hosted by Netlify

Scores

66
Performance
no change
100
Accessibility
no change
92
Best Practices
no change
100
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 4.41 s — — 4.41 s 4.41 s
CLS Cumulative Layout Shift 0.002 — — 0.002 0.002
TBT Total Blocking Time 504 ms — — 504 ms 504 ms
FCP First Contentful Paint 3.20 s — — 3.20 s 3.20 s
Speed Index 3.20 s — — 3.20 s 3.20 s
TTFB Time to First Byte 604 ms — — 604 ms 604 ms

What LCP is made of

A flat LCP number tells you something regressed. The subparts tell you whether it was the server, resource discovery, the download, or rendering.

element render delay 107 ms
resource load duration 21 ms
resource load delay 13 ms
time to first byte 5 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 1.29 MB — — 1.29 MB 1.29 MB
Requests 54 — — 54 54
Third-party Weight 743.8 kB — — 743.8 kB 743.8 kB
Third-party CPU 216 ms — — 216 ms 216 ms
Unused JS 30.0 kB — — 30.0 kB 30.0 kB
Unused CSS 0 B — — 0 B 0 B

By resource type

font 689.2 kB · 6 req
image 454.0 kB · 18 req
script 121.9 kB · 23 req
stylesheet 12.2 kB · 4 req
document 9.3 kB · 1 req
other 1.8 kB · 2 req
third party 743.8 kB · 29 req

Third parties 2 entities

743.8 kB transferred, 216 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

rsms.me 691.3 kB · 0 ms CPU
JSDelivr CDN 52.6 kB · 216 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 5.23 s — — 5.23 s 5.23 s
Long Tasks 5 — — 5 5
DOM Elements 5,226 — — 5,226 5,226
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 3 — — 3 3
A11y Failures 0 — — 0 0
A11y Failing Nodes 0 — — 0 0

Main thread work

script evaluation 2.14 s
other 1.32 s
paint composite render 1.26 s
style layout 401 ms
parse HTML 48 ms
script parse compile 39 ms
garbage collection 31 ms

Axe violations axe-core 4.13.0, full rule set

3 violating nodes across 2 rules, 4577 passing. This is a standalone axe run, stricter than the subset Lighthouse folds into its score above — and it is the second tiebreaker in the ranking.

  • serious scrollable-region-focusable — Scrollable region must have keyboard access 2 nodes
  • moderate region — All page content should be contained by landmarks 1 node

Hygiene

Changes rarely — which is exactly why a change is worth noticing.

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2 1 console error

Measurement log

Every stored run for this URL, newest first. Failures are kept as records — "this site was down on Tuesday" is data too.

When PerfLCPCLSTBTWeight RunsSpreadBenchTook
Aug 21, 2026, 4:35 PM UTC 66 4.41 s 0.002 504 ms 1.29 MB 3/3 ±29 2,487 44.8s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show tanks.jandewil.de's scores, updated whenever this instance re-measures — more about the component. Don’t forget to bundle the speedlify-score.js component code into your site! 

<speedlify-score speedlify-url="https://zachleat.github.io/speedlify2/" url="https://tanks.jandewil.de/"></speedlify-score>