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 ·

eleventy-test-bed-dollplayer2501.netlify.app

https://eleventy-test-bed-dollplayer2501.netlify.app/

100 90 100 80 CWV 19AXE

Data from Aug 20, 2026, 9:33 PM UTC — 21h old.

Built Awesome · 1 measurement · since Aug 20, 2026 · last attempt 21h

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

100
Performance
no change
90
Accessibility
no change
100
Best Practices
no change
80
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 1.07 s 1.07 s 1.07 s
CLS Cumulative Layout Shift 0 0 0
TBT Total Blocking Time 62 ms 62 ms 62 ms
FCP First Contentful Paint 1.06 s 1.06 s 1.06 s
Speed Index 1.06 s 1.06 s 1.06 s
TTFB Time to First Byte 611 ms 611 ms 611 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 79 ms
time to first byte 12 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 267.5 kB 267.5 kB 267.5 kB
Requests 11 11 11
Third-party Weight 161.4 kB 161.4 kB 161.4 kB
Third-party CPU 55 ms 55 ms 55 ms
Unused JS 92.0 kB 92.0 kB 92.0 kB
Unused CSS 0 B 0 B 0 B

By resource type

script 194.7 kB · 2 req
image 11.8 kB · 4 req
stylesheet 10.5 kB · 2 req
document 2.2 kB · 1 req
third party 161.4 kB · 1 req

Third parties 1 entities

161.4 kB transferred, 55 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

Google Tag Manager 161.4 kB · 55 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 498 ms 498 ms 498 ms
Long Tasks 2 2 2
DOM Elements 92 92 92
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 19 19 19
A11y Failures 2 2 2
A11y Failing Nodes 18 18 18

Main thread work

script evaluation 243 ms
other 133 ms
script parse compile 53 ms
style layout 49 ms
parse HTML 13 ms
paint composite render 8 ms

Axe violations axe-core 4.13.0, full rule set

19 violating nodes across 3 rules, 152 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 color-contrast — Elements must meet minimum color contrast ratio thresholds 17 nodes
  • serious link-in-text-block — Links must be distinguishable without relying on color 1 node
  • moderate region — All page content should be contained by landmarks 1 node

Accessibility failures 2 of 19 audits

Tracked as a count, not just the score — the weighted score is coarse enough that you can ship a broken component and barely move it.

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 17 nodes
  • link-in-text-block — Links rely on color to be distinguishable. 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

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 20, 2026, 9:33 PM UTC 100 1.07 s 0 62 ms 267.5 kB 3/3 ±0 2,291 22.9s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show eleventy-test-bed-dollplayer2501.netlify.app'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://eleventy-test-bed-dollplayer2501.netlify.app/"></speedlify-score>