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 ·

mattknight.io

https://www.mattknight.io/

100 100 96 100 –CWV 3AXE

Data from Aug 21, 2026, 11:28 AM UTC — 7h old.

Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 7h

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 Built with Eleventy
Cloudflare Hosted by Cloudflare

Scores

100
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 791 ms — — 791 ms 791 ms
CLS Cumulative Layout Shift 0 — — 0 0
TBT Total Blocking Time 0 ms — — 0 ms 0 ms
FCP First Contentful Paint 791 ms — — 791 ms 791 ms
Speed Index 791 ms — — 791 ms 791 ms
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.

element render delay 34 ms
time to first byte 32 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 12.9 kB — — 12.9 kB 12.9 kB
Requests 4 — — 4 4
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

document 5.3 kB · 1 req
other 738 B · 1 req
script 460 B · 1 req

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 109 ms — — 109 ms 109 ms
Long Tasks 0 — — 0 0
DOM Elements 63 — — 63 63
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 3 — — 3 3
A11y Failures 0 — — 0 0
A11y Failing Nodes 0 — — 0 0

Main thread work

other 64 ms
style layout 23 ms
script evaluation 11 ms
parse HTML 6 ms
paint composite render 4 ms
script parse compile 1 ms

Axe violations axe-core 4.13.0, full rule set

3 violating nodes across 3 rules, 150 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-main-is-top-level — Main landmark should not be contained in another landmark 1 node
  • moderate landmark-no-duplicate-main — Document should not have more than one main landmark 1 node
  • 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 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 21, 2026, 11:28 AM UTC 100 791 ms 0 0 ms 12.9 kB 3/3 ±0 2,316 20.1s

Embed this score

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