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 ·

kevhealy.com

https://kevhealy.com/

Data from Aug 21, 2026, 1:17 AM UTC — 16h old.

Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 16h

This URL redirects to https://kevinhealyclarke.co.uk/.

Lighthouse follows the redirect, so the numbers below describe the destination page, not this one. Not yet confirmed as a move; it needs to lead to the same place on several consecutive runs first.

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 3.1.0 Built with Eleventy 3.1.0
Netlify Hosted by Netlify

Scores

75
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 4.89 s — — 4.89 s 4.89 s
CLS Cumulative Layout Shift 0.007 — — 0.007 0.007
TBT Total Blocking Time 0 ms — — 0 ms 0 ms
FCP First Contentful Paint 2.79 s — — 2.79 s 2.79 s
Speed Index 4.80 s — — 4.80 s 4.80 s
TTFB Time to First Byte 774 ms — — 774 ms 774 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 2.17 s
time to first byte 457 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 400.9 kB — — 400.9 kB 400.9 kB
Requests 15 — — 15 15
Third-party Weight 400.6 kB — — 400.6 kB 400.6 kB
Third-party CPU 4 ms — — 4 ms 4 ms
Unused JS 0 B — — 0 B 0 B
Unused CSS 0 B — — 0 B 0 B

By resource type

font 378.3 kB · 4 req
other 9.2 kB · 8 req
stylesheet 6.4 kB · 1 req
script 4.3 kB · 1 req
document 2.7 kB · 1 req
third party 5.0 kB · 3 req

Third parties 3 entities

400.6 kB transferred, 4 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

kevinhealyclarke.co.uk 395.8 kB · 2 ms CPU
zgo.at 4.3 kB · 2 ms CPU
goatcounter.com 380 B · 0 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 210 ms — — 210 ms 210 ms
Long Tasks 0 — — 0 0
DOM Elements 155 — — 155 155
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

other 108 ms
style layout 65 ms
script evaluation 16 ms
paint composite render 10 ms
parse HTML 9 ms
script parse compile 2 ms

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 303 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 landmark-unique — Landmarks should have a unique role or role/label/title (i.e. accessible name) combination 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 21, 2026, 1:17 AM UTC 75 4.89 s 0.007 0 ms 400.9 kB 1/3 — 2,479 273.6s

Embed this score

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