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-classic-blog-starter.netlify.app

https://eleventy-classic-blog-starter.netlify.app/

100 94 100 100 –CWV 1AXE

Data from Aug 20, 2026, 9:28 PM UTC — 21h old.

Build Awesome Starters · 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 3.1.2 Built with Eleventy 3.1.2
Netlify Hosted by Netlify

Scores

100
Performance
no change
94
Accessibility
no change
100
Best Practices
no change
100
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 915 ms — — 915 ms 915 ms
CLS Cumulative Layout Shift 0.001 — — 0.001 0.001
TBT Total Blocking Time 0 ms — — 0 ms 0 ms
FCP First Contentful Paint 915 ms — — 915 ms 915 ms
Speed Index 1.29 s — — 1.29 s 1.29 s
TTFB Time to First Byte 733 ms — — 733 ms 733 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.

time to first byte 580 ms
element render delay 48 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 229.8 kB — — 229.8 kB 229.8 kB
Requests 7 — — 7 7
Third-party Weight 0 B — — 0 B 0 B
Third-party CPU 0 ms — — 0 ms 0 ms
Unused JS 0 B — — 0 B 0 B
Unused CSS 0 B — — 0 B 0 B

By resource type

image 117.1 kB · 2 req
font 106.2 kB · 3 req
document 5.8 kB · 1 req
other 676 B · 1 req

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 222 ms — — 222 ms 222 ms
Long Tasks 1 — — 1 1
DOM Elements 89 — — 89 89
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 1 — — 1 1
A11y Failures 1 — — 1 1
A11y Failing Nodes 1 — — 1 1

Main thread work

other 123 ms
style layout 71 ms
paint composite render 13 ms
script evaluation 10 ms
parse HTML 4 ms
script parse compile 0 ms

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 231 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 link-in-text-block — Links must be distinguishable without relying on color 1 node

Accessibility failures 1 of 17 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.

  • 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, 9:28 PM UTC 100 915 ms 0.001 0 ms 229.8 kB 3/3 ±1 2,472 21.8s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show eleventy-classic-blog-starter.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-classic-blog-starter.netlify.app/"></speedlify-score>