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 ·

eventua11y.com

https://eventua11y.com/

92 100 96 100 –CWV 1AXE

Data from Aug 20, 2026, 10:28 PM UTC — 20h old.

11ty Emeritus · 1 measurement · since Aug 20, 2026 · last attempt 20h

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.

Astro Built with Astro
Netlify Hosted by Netlify

Scores

92
Performance
no change
100
Accessibility
no change
96
Best Practices
no change
100
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 1.97 s — — 1.97 s 1.97 s
CLS Cumulative Layout Shift 0.027 — — 0.027 0.027
TBT Total Blocking Time 334 ms — — 334 ms 334 ms
FCP First Contentful Paint 1.22 s — — 1.22 s 1.22 s
Speed Index 1.22 s — — 1.22 s 1.22 s
TTFB Time to First Byte 620 ms — — 620 ms 620 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 234 ms
element render delay 75 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 297.1 kB — — 297.1 kB 297.1 kB
Requests 43 — — 43 43
Third-party Weight 43.5 kB — — 43.5 kB 43.5 kB
Third-party CPU 1 ms — — 1 ms 1 ms
Unused JS 21.4 kB — — 21.4 kB 21.4 kB
Unused CSS 0 B — — 0 B 0 B

By resource type

script 176.7 kB · 20 req
other 56.2 kB · 13 req
font 36.6 kB · 3 req
document 13.6 kB · 1 req
stylesheet 12.2 kB · 2 req
image 435 B · 1 req
third party 43.5 kB · 13 req

Third parties 4 entities

43.5 kB transferred, 1 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

Google Fonts 37.6 kB · 0 ms CPU
Fathom Analytics 3.2 kB · 1 ms CPU
FontAwesome CDN 2.7 kB · 0 ms CPU
Sentry 56 B · 0 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 1.81 s — — 1.81 s 1.81 s
Long Tasks 4 — — 4 4
DOM Elements 986 — — 986 986
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 1 — — 1 1
A11y Failures 0 — — 0 0
A11y Failing Nodes 0 — — 0 0

Main thread work

script evaluation 728 ms
other 457 ms
paint composite render 342 ms
style layout 235 ms
parse HTML 39 ms
script parse compile 10 ms

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 1295 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 label-title-only — Form elements should have a visible label 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 20, 2026, 10:28 PM UTC 92 1.97 s 0.027 334 ms 297.1 kB 3/3 ±27 2,703 31.4s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show eventua11y.com'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://eventua11y.com/"></speedlify-score>