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 ·

umbrella.sploot.com

https://umbrella.sploot.com/

99 76 100 82 –CWV 3AXE

Data from Aug 21, 2026, 9:46 AM UTC — 9h old.

Build Awesome Starters · 1 measurement · since Aug 21, 2026 · last attempt 9h

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 3.1.2 Built with Eleventy 3.1.2
Netlify Hosted by Netlify

Scores

99
Performance
no change
76
Accessibility
no change
100
Best Practices
no change
82
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 1.55 s — — 1.55 s 1.55 s
CLS Cumulative Layout Shift 0 — — 0 0
TBT Total Blocking Time 0 ms — — 0 ms 0 ms
FCP First Contentful Paint 1.55 s — — 1.55 s 1.55 s
Speed Index 1.55 s — — 1.55 s 1.55 s
TTFB Time to First Byte 637 ms — — 637 ms 637 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 69 ms
time to first byte 39 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 8.4 kB — — 8.4 kB 8.4 kB
Requests 7 — — 7 7
Third-party Weight 1.2 kB — — 1.2 kB 1.2 kB
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

image 4.5 kB · 4 req
document 2.1 kB · 1 req
stylesheet 1.7 kB · 2 req
third party 1.2 kB · 1 req

Third parties 1 entities

1.2 kB transferred, 0 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

joeldare.com 1.2 kB · 0 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 119 ms — — 119 ms 119 ms
Long Tasks 0 — — 0 0
DOM Elements 83 — — 83 83
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 3 — — 3 3
A11y Failures 3 — — 3 3
A11y Failing Nodes 3 — — 3 3

Main thread work

other 80 ms
style layout 18 ms
script evaluation 9 ms
paint composite render 7 ms
parse HTML 5 ms
script parse compile 0 ms

Axe violations axe-core 4.13.0, full rule set

3 violating nodes across 3 rules, 201 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 html-lang-valid — <html> element must have a valid value for the lang attribute 1 node
  • critical image-alt — Images must have alternative text 1 node
  • serious link-name — Links must have discernible text 1 node

Accessibility failures 3 of 14 audits

Tracked as a count, not just the score — the weighted score is coarse enough that you can ship a broken component and barely move it.

  • html-lang-valid — `<html>` element does not have a valid value for its `[lang]` attribute. 1 node
  • image-alt — Image elements do not have `[alt]` attributes 1 node
  • link-name — Links do not have a discernible name 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, 9:46 AM UTC 99 1.55 s 0 0 ms 8.4 kB 3/3 ±0 2,388 22s

Embed this score

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