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 ·

11ty-netlify-jumpstart.netlify.app

https://11ty-netlify-jumpstart.netlify.app/

100 100 100 100 –CWV 0AXE

Data from Aug 20, 2026, 7:04 PM UTC — 24h old.

Build Awesome Starters · 1 measurement · since Aug 20, 2026 · last attempt 24h

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
100
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 1.35 s — — 1.35 s 1.35 s
CLS Cumulative Layout Shift 0 — — 0 0
TBT Total Blocking Time 0 ms — — 0 ms 0 ms
FCP First Contentful Paint 799 ms — — 799 ms 799 ms
Speed Index 799 ms — — 799 ms 799 ms
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 51 ms
time to first byte 5 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 102.0 kB — — 102.0 kB 102.0 kB
Requests 5 — — 5 5
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

font 53.9 kB · 2 req
other 41.6 kB · 1 req
document 3.6 kB · 1 req
stylesheet 2.9 kB · 1 req

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 173 ms — — 173 ms 173 ms
Long Tasks 0 — — 0 0
DOM Elements 65 — — 65 65
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 0 — — 0 0
A11y Failures 0 — — 0 0
A11y Failing Nodes 0 — — 0 0

Main thread work

other 78 ms
style layout 75 ms
script evaluation 8 ms
parse HTML 6 ms
paint composite render 5 ms
script parse compile 1 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 139 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.

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, 7:04 PM UTC 100 1.35 s 0 0 ms 102.0 kB 3/3 ±0 2,458 21.1s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show 11ty-netlify-jumpstart.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://11ty-netlify-jumpstart.netlify.app/"></speedlify-score>