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 ·

scottw.com

https://scottw.com/

89 100 100 100 CWV 0AXE

Data from Aug 21, 2026, 7:42 AM UTC — 11h old.

Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 11h

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 3.1.6 Built with Eleventy 3.1.6
Cloudflare Hosted by Cloudflare

Scores

89
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 3.63 s 3.63 s 3.63 s
CLS Cumulative Layout Shift 0 0 0
TBT Total Blocking Time 0 ms 0 ms 0 ms
FCP First Contentful Paint 1.73 s 1.73 s 1.73 s
Speed Index 1.73 s 1.73 s 1.73 s
TTFB Time to First Byte 467 ms 467 ms 467 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 86 ms
time to first byte 28 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 441.6 kB 441.6 kB 441.6 kB
Requests 16 16 16
Third-party Weight 11.5 kB 11.5 kB 11.5 kB
Third-party CPU 6 ms 6 ms 6 ms
Unused JS 0 B 0 B 0 B
Unused CSS 0 B 0 B 0 B

By resource type

font 352.4 kB · 4 req
image 50.4 kB · 3 req
document 16.5 kB · 1 req
script 14.2 kB · 2 req
other 6.6 kB · 5 req
third party 11.5 kB · 3 req

Third parties 2 entities

11.5 kB transferred, 6 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

Cloudflare 11.4 kB · 6 ms CPU
cloudflareinsights.com 36 B · 0 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 271 ms 271 ms 271 ms
Long Tasks 0 0 0
DOM Elements 210 210 210
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

style layout 110 ms
other 102 ms
script evaluation 34 ms
parse HTML 12 ms
paint composite render 9 ms
script parse compile 4 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 357 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 h3

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, 7:42 AM UTC 89 3.63 s 0 0 ms 441.6 kB 3/3 ±3 4,491 20.5s

Embed this score

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