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

jkc.codes

https://jkc.codes/

100 100 100 100 ✓AXE –CWV

Ranks Overall #47 Built Awesome #42

Data from Sep 5, 2026, 3:53 PM UTC old Measured once a week · 3 runs since Aug 21, 2026

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

Stack

Eleventy 3.1.2 Built with Eleventy 3.1.2
GitHub Pages Hosted by GitHub Pages

Lighthouse Scores

100
Performance
no change
100
Accessibility
no change
100
Best Practices
no change
100
SEO
no change

Without JavaScript

The same load, photographed twice at 412×823: once with scripts disabled, once as rendered.

Scripts disabled
As rendered

0% of pixels differ — they are identical. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 1.37 s 1.36 s ↑ +7 ms (+0.5%) 1.36 s 1.37 s
CLS Cumulative Layout Shift 0 0 → no change 0 0
TBT Total Blocking Time 0 ms 0 ms → no change 0 ms 0 ms
FCP First Contentful Paint 791 ms 788 ms ↑ +3 ms (+0.4%) 788 ms 798 ms
Speed Index 791 ms 788 ms ↑ +3 ms (+0.4%) 788 ms 798 ms
TTFB Time to First Byte 616 ms 609 ms ↑ +7 ms (+1.1%) 609 ms 617 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 49 ms
time to first byte 17 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 101 kB 101 kB ↓ -48 B 101 kB 101 kB
Requests 14 14 → no change 14 14
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 89.8% 90.9 kB · 7 req
  • stylesheet 4.5% 4.6 kB · 2 req
  • document 3.2% 3.2 kB · 1 req
  • other 1.3% 1.3 kB · 3 req
  • script 1.2% 1.2 kB · 1 req

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 202 ms 224 ms ↓ -23 ms (-10%) 202 ms 238 ms
Long Tasks 0 0 → no change 0 0
DOM Elements 155 155 → no change 155 155
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 121 ms
style layout 39 ms
script evaluation 25 ms
parse HTML 8 ms
paint composite render 8 ms
script parse compile 1 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 353 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 5, 2026, 3:53 PM UTC 100 1.37 s 0 0 ms 101 kB 3/3 ±0 3,271 +32% 20.9s
Aug 29, 2026, 12:28 PM UTC 100 1.36 s 0 0 ms 101 kB 3/3 ±0 2,330 -6% 20.6s
Aug 21, 2026, 1:22 AM UTC 100 1.37 s 0 0 ms 101 kB 3/3 ±0 2,454 -1% 22.8s

Embed this score

Use this web component to show jkc.codes'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://jkc.codes/"></speedlify2-score>