speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time.

Charts Measurement runs Embed a score

declanbyrd.co.uk

https://declanbyrd.co.uk/

99 100 100 100 ✓AXE –CWV

Ranks Overall #226 Built Awesome #185

Data from Sep 4, 2026, 6:08 PM UTC old Measured once a week · 3 runs since Aug 20, 2026

Test elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis

Stack

Eleventy 3.1.6 Built with Eleventy 3.1.6
Netlify Hosted by Netlify

Lighthouse Scores

99
Performance
↓ -1 (-1%)
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 1.79 s 1.22 s ↑ +565 ms (+46.2%) significant 1.21 s 1.79 s
CLS Cumulative Layout Shift 0.001 0 ↑ +0.001 0 0.001
TBT Total Blocking Time 112 ms 0 ms ↑ +112 ms 0 ms 112 ms
FCP First Contentful Paint 1.04 s 821 ms ↑ +224 ms (+27.3%) significant 811 ms 1.04 s
Speed Index 2.44 s 821 ms ↑ +1615 ms (+196.7%) significant 811 ms 2.44 s
TTFB Time to First Byte 770 ms 622 ms ↑ +148 ms (+23.8%) significant 605 ms 770 ms

LCP Subparts lab observed, unthrottled

The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab metrics LCP metric shown above is throttled.

element render delay 1.16 s
time to first byte 194 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 462 kB 450 kB ↑ +11.9 kB (+2.7%) 450 kB 462 kB
Requests 21 19 ↑ +2 (+10.5%) significant 19 21
Third-party Weight 0 B 0 B → no change 0 B 0 B
Third-party CPU 0 ms 0 ms → no change 0 ms 0 ms
Unused JS 0 B 0 B → no change 0 B 0 B
Unused CSS 0 B 0 B → no change 0 B 0 B

By resource type

  • image 82.6% 382 kB · 6 req
  • font 12.9% 59.8 kB · 4 req
  • document 1.7% 7.9 kB · 1 req
  • other 1.7% 7.8 kB · 6 req
  • script 0.6% 2.6 kB · 2 req
  • stylesheet 0.5% 2.3 kB · 2 req

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 828 ms 289 ms ↑ +539 ms (+186.3%) significant 262 ms 828 ms
Long Tasks 2 0 ↑ +2 0 2
DOM Elements 209 209 → no change 209 209
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 0 → no change 0 0
A11y Failures 0 0 → no change 0 0
A11y Failing Nodes 0 0 → no change 0 0

Main thread work

other 596 ms
style layout 143 ms
script evaluation 44 ms
parse HTML 26 ms
paint composite render 17 ms
script parse compile 2 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 525 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook
Sep 4, 2026, 6:08 PM UTC 99 1.79 s 0.001 112 ms 462 kB 3/3 ±4 3,050 +23% 23.8s
Aug 28, 2026, 1:58 PM UTC 100 1.22 s 0 0 ms 450 kB 3/3 ±0 2,479 0% 23.3s
Aug 20, 2026, 8:28 PM UTC 100 1.21 s 0 0 ms 450 kB 3/3 ±1 2,492 0% 23.9s

Embed this score

Use this web component to show declanbyrd.co.uk's scores on any website, updated whenever this instance re-measures. Don’t forget to bundle the speedlify2-score.js component code into your site! 

<speedlify2-score speedlify-url="https://www.speedlify.dev/" url="https://declanbyrd.co.uk/"></speedlify2-score>