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 ·

childcare-vouchers.uk

https://childcare-vouchers.uk/

98 92 100 100 CWV 4AXE

Data from Aug 20, 2026, 4:36 PM UTC — 26h old.

Built Awesome · 1 measurement · since Aug 20, 2026 · last attempt 26h

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
Cloudflare Hosted by Cloudflare

Scores

98
Performance
no change
92
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 1.71 s 1.71 s 1.71 s
CLS Cumulative Layout Shift 0 0 0
TBT Total Blocking Time 134 ms 134 ms 134 ms
FCP First Contentful Paint 1.56 s 1.56 s 1.56 s
Speed Index 1.56 s 1.56 s 1.56 s
TTFB Time to First Byte 481 ms 481 ms 481 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 80 ms
time to first byte 77 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 341.3 kB 341.3 kB 341.3 kB
Requests 16 16 16
Third-party Weight 308.7 kB 308.7 kB 308.7 kB
Third-party CPU 75 ms 75 ms 75 ms
Unused JS 134.7 kB 134.7 kB 134.7 kB
Unused CSS 0 B 0 B 0 B

By resource type

script 314.6 kB · 8 req
document 11.4 kB · 1 req
stylesheet 5.7 kB · 1 req
other 5.5 kB · 5 req
image 4.2 kB · 1 req
third party 308.7 kB · 6 req

Third parties 3 entities

308.7 kB transferred, 75 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

Google Tag Manager 285.8 kB · 69 ms CPU
Cloudflare 22.9 kB · 6 ms CPU
cloudflareinsights.com 36 B · 0 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 510 ms 510 ms 510 ms
Long Tasks 2 2 2
DOM Elements 374 374 374
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 4 4 4
A11y Failures 2 2 2
A11y Failing Nodes 3 3 3

Main thread work

script evaluation 268 ms
other 113 ms
script parse compile 67 ms
style layout 39 ms
parse HTML 15 ms
paint composite render 8 ms

Axe violations axe-core 4.13.0, full rule set

4 violating nodes across 3 rules, 605 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 link-in-text-block — Links must be distinguishable without relying on color 2 nodes
  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 1 node
  • moderate region — All page content should be contained by landmarks 1 node

Accessibility failures 2 of 24 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.

  • link-in-text-block — Links rely on color to be distinguishable. 2 nodes
  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 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, 4:36 PM UTC 98 1.71 s 0 134 ms 341.3 kB 3/3 ±3 3,324 29.2s

Embed this score

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