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 ·

11tyshop.pages.dev

https://11tyshop.pages.dev/

98 96 96 100 CWV 9AXE

Data from Aug 20, 2026, 7:05 PM UTC — 24h old.

Build Awesome Starters · 1 measurement · since Aug 20, 2026 · last attempt 24h

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 2.0.1 Built with Eleventy 2.0.1
Cloudflare Hosted by Cloudflare

Scores

98
Performance
no change
96
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 2.04 s 2.04 s 2.04 s
CLS Cumulative Layout Shift 0.072 0.072 0.072
TBT Total Blocking Time 0 ms 0 ms 0 ms
FCP First Contentful Paint 1.29 s 1.29 s 1.29 s
Speed Index 1.29 s 1.29 s 1.29 s
TTFB Time to First Byte 494 ms 494 ms 494 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.

time to first byte 47 ms
resource load duration 42 ms
element render delay 28 ms
resource load delay 8 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 368.9 kB 368.9 kB 368.9 kB
Requests 20 20 20
Third-party Weight 24.1 kB 24.1 kB 24.1 kB
Third-party CPU 4 ms 4 ms 4 ms
Unused JS 0 B 0 B 0 B
Unused CSS 27.6 kB 27.6 kB 27.6 kB

By resource type

image 310.4 kB · 15 req
stylesheet 30.1 kB · 2 req
script 24.1 kB · 1 req
document 3.8 kB · 1 req
other 426 B · 1 req
third party 24.1 kB · 1 req

Third parties 1 entities

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

JSDelivr CDN 24.1 kB · 4 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 181 ms 181 ms 181 ms
Long Tasks 0 0 0
DOM Elements 166 166 166
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 9 9 9
A11y Failures 3 3 3
A11y Failing Nodes 3 3 3

Main thread work

other 102 ms
style layout 29 ms
script evaluation 19 ms
paint composite render 12 ms
parse HTML 11 ms
script parse compile 8 ms

Axe violations axe-core 4.13.0, full rule set

9 violating nodes across 3 rules, 336 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 region — All page content should be contained by landmarks 7 nodes
  • moderate heading-order — Heading levels should only increase by one 1 node
  • moderate landmark-one-main — Document should have one main landmark 1 node

Accessibility failures 3 of 21 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.

  • heading-order — Heading elements are not in a sequentially-descending order 1 node
  • landmark-one-main — Document does not have a main landmark. 1 node
  • label-content-name-mismatch — Elements with visible text labels do not have matching accessible names. 1 node

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 20, 2026, 7:05 PM UTC 98 2.04 s 0.072 0 ms 368.9 kB 3/3 ±10 2,973 23.9s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show 11tyshop.pages.dev'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://11tyshop.pages.dev/"></speedlify-score>