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-explorer.netlify.app

https://eleventy-explorer.netlify.app/

93 82 100 100 CWV 7AXE

Data from Aug 20, 2026, 8:35 PM UTC — 22h old.

Built Awesome · 1 measurement · since Aug 20, 2026 · last attempt 22h

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

93
Performance
no change
82
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 1.01 s 1.01 s 1.01 s
CLS Cumulative Layout Shift 0.163 0.163 0.163
TBT Total Blocking Time 16 ms 16 ms 16 ms
FCP First Contentful Paint 1.01 s 1.01 s 1.01 s
Speed Index 1.01 s 1.01 s 1.01 s
TTFB Time to First Byte 625 ms 625 ms 625 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 80 ms
time to first byte 27 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 109.0 kB 109.0 kB 109.0 kB
Requests 19 19 19
Third-party Weight 24.1 kB 24.1 kB 24.1 kB
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

font 55.8 kB · 1 req
image 24.1 kB · 14 req
script 17.3 kB · 1 req
document 7.8 kB · 1 req
stylesheet 3.4 kB · 1 req
other 633 B · 1 req
third party 24.1 kB · 14 req

Third parties 1 entities

24.1 kB transferred, 0 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

GitHub 24.1 kB · 0 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 469 ms 469 ms 469 ms
Long Tasks 2 2 2
DOM Elements 1,293 1,293 1,293
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 7 7 7
A11y Failures 4 4 4
A11y Failing Nodes 39 39 39

Main thread work

style layout 142 ms
other 133 ms
script evaluation 93 ms
paint composite render 79 ms
parse HTML 15 ms
script parse compile 7 ms

Axe violations axe-core 4.13.0, full rule set

7 violating nodes across 4 rules, 2586 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.

  • moderate region — All page content should be contained by landmarks 4 nodes
  • moderate heading-order — Heading levels should only increase by one 1 node
  • moderate landmark-one-main — Document should have one main landmark 1 node
  • serious link-name — Links must have discernible text 1 node

Accessibility failures 4 of 16 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.

  • target-size — Touch targets do not have sufficient size or spacing. 36 nodes
  • heading-order — Heading elements are not in a sequentially-descending order 1 node
  • link-name — Links do not have a discernible name 1 node
  • landmark-one-main — Document does not have a main landmark. 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, 8:35 PM UTC 93 1.01 s 0.163 16 ms 109.0 kB 3/3 ±0 2,483 28.3s

Embed this score

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