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 ·

11ty-bulma-starter.netlify.app

https://11ty-bulma-starter.netlify.app/

93 71 100 91 –CWV 6AXE

Data from Aug 20, 2026, 4:10 PM UTC — 27h old.

Built Awesome · 1 measurement · since Aug 20, 2026 · last attempt 27h

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.

Netlify Hosted by Netlify

Scores

93
Performance
no change
71
Accessibility
no change
100
Best Practices
no change
91
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 3.18 s — — 3.18 s 3.18 s
CLS Cumulative Layout Shift 0 — — 0 0
TBT Total Blocking Time 0 ms — — 0 ms 0 ms
FCP First Contentful Paint 1.08 s — — 1.08 s 1.08 s
Speed Index 1.08 s — — 1.08 s 1.08 s
TTFB Time to First Byte 628 ms — — 628 ms 628 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.

resource load duration 156 ms
time to first byte 29 ms
element render delay 16 ms
resource load delay 9 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 473.0 kB — — 473.0 kB 473.0 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 58.1 kB — — 58.1 kB 58.1 kB

By resource type

image 413.3 kB · 1 req
stylesheet 58.5 kB · 1 req
document 1.1 kB · 1 req
script 161 B · 1 req

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 127 ms — — 127 ms 127 ms
Long Tasks 0 — — 0 0
DOM Elements 11 — — 11 11
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 6 — — 6 6
A11y Failures 3 — — 3 3
A11y Failing Nodes 4 — — 4 4

Main thread work

other 78 ms
style layout 22 ms
parse HTML 12 ms
script evaluation 12 ms
paint composite render 2 ms
script parse compile 1 ms

Axe violations axe-core 4.13.0, full rule set

6 violating nodes across 5 rules, 17 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 color-contrast — Elements must meet minimum color contrast ratio thresholds 2 nodes
  • serious html-has-lang — <html> element must have a lang attribute 1 node
  • moderate landmark-one-main — Document should have one main landmark 1 node
  • moderate page-has-heading-one — Page should contain a level-one heading 1 node
  • moderate region — All page content should be contained by landmarks 1 node

Accessibility failures 3 of 9 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.

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 2 nodes
  • html-has-lang — `<html>` element does not have a `[lang]` attribute 1 node
  • landmark-one-main — Document does not have a main landmark. 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 20, 2026, 4:10 PM UTC 93 3.18 s 0 0 ms 473.0 kB 3/3 ±2 2,428 21.3s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show 11ty-bulma-starter.netlify.app'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://11ty-bulma-starter.netlify.app/"></speedlify-score>