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 ·

unslump.me

https://unslump.me/

99 100 100 100 CWV 0AXE

Data from Aug 21, 2026, 8:41 AM UTC — 10h old.

11ty Emeritus · 1 measurement · since Aug 21, 2026 · last attempt 10h

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.

Nuxt Built with Nuxt
Vercel Hosted by Vercel

Scores

99
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 1.62 s 1.62 s 1.62 s
CLS Cumulative Layout Shift 0 0 0
TBT Total Blocking Time 26 ms 26 ms 26 ms
FCP First Contentful Paint 1.43 s 1.43 s 1.43 s
Speed Index 1.43 s 1.43 s 1.43 s
TTFB Time to First Byte 642 ms 642 ms 642 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 224 ms
time to first byte 22 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 173.6 kB 173.6 kB 173.6 kB
Requests 40 40 40
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

script 103.1 kB · 30 req
font 49.1 kB · 2 req
stylesheet 6.3 kB · 1 req
image 5.5 kB · 1 req
document 4.2 kB · 1 req
other 2.2 kB · 3 req

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 509 ms 509 ms 509 ms
Long Tasks 2 2 2
DOM Elements 36 36 36
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

other 233 ms
script evaluation 212 ms
style layout 37 ms
parse HTML 11 ms
script parse compile 9 ms
paint composite render 8 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 71 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 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, 8:41 AM UTC 99 1.62 s 0 26 ms 173.6 kB 3/3 ±20 2,786 23.5s

Embed this score

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