speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time. Follow us on Mastodon or Bluesky.

Charts Compare Measurement runs Embed a score Open to Work

jeffy.info

https://jeffy.info/

100PERF 97A11Y 100BEST 91SEO !AXE –CWV

Ranks Overall #824 Built Awesome #609

Data from Oct 3, 2026, 11:36 PM UTC old Measured once a week · 7 runs since Aug 21, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Tame the Bots · Scoring Calculator · Wayback Machine

Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).

Lighthouse Scores LAB Simulated

100
Performance
no change
97
Accessibility
no change
100
Best Practices
no change
91
SEO
no change

Metrics LAB

No field data: the Chrome UX Report is not being collected for this project, so every figure below is from the Lighthouse run.

Metric Lab Simulated
Value Change / range Trend
LCP CWV (estimate) Largest Contentful Paint 1.29 s good ↑ +491 ms (+61.4%) 792 ms – 1.29 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0 good → no change 0 – 0
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms
FCP First Contentful Paint 1.14 s good ↑ +341 ms (+42.6%) 792 ms – 1.14 s
Speed Index 1.14 s good ↑ +341 ms (+42.6%) 792 ms – 1.14 s
TTFB Time to First Byte 496 ms good ↓ -121 ms (-19.6%) 468 ms – 631 ms

LCP Subparts LAB Unthrottled

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

element render delay 74 ms
time to first byte 44 ms

Page weight

Metric Value Change / range Trend
Page Weight 16.9 kB ↑ +118 B (+0.7%) 16.8 kB – 17.0 kB
Requests 7 → no change 7 – 7
Third-party Weight 0 B → no change 0 B – 0 B
Third-party CPU 0 ms → no change 0 ms – 0 ms
Unused JS 0 B → no change 0 B – 0 B
Unused CSS 0 B → no change 0 B – 0 B

By resource type

Type Transfer Share Size Requests
other 42.9% 7.3 kB 3
document 40.3% 6.8 kB 1
script 8.8% 1.5 kB 2
stylesheet 8.1% 1.4 kB 1
Total 16.9 kB 7

Page health

Metric Value Change / range Trend
Main Thread Work 112 ms ↓ -33 ms (-22.8%) 109 ms – 149 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 238 → no change 238 – 238
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 3 → no change 3 – 3
A11y Failures 1 → no change 1 – 1
A11y Failing Nodes 1 → no change 1 – 1

Main thread work

Task Time Share Duration Simulated
other 59% 66 ms
style layout 17% 19 ms
script evaluation 13% 15 ms
parse HTML 6% 7 ms
paint composite render 5% 5 ms
script parse compile 1% 1 ms
Total 112 ms

Axe violations axe-core 4.13.0, full rule set

3 violating nodes across 3 rules, 429 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Accessibility failures 1 of 16 audits

  • landmark-one-main — Document does not have a main landmark. 1 node

SEO failures 1 of 8 audits

  • meta-description — Document does not have a meta description

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h3

Measurement log

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 3, 2026, 11:36 PM UTC 100 1.29 s 0 0 ms 16.9 kB 3/3 ±1 2,964 +19% 21.9s Wayback
Sep 26, 2026, 9:57 PM UTC 100 800 ms 0 0 ms 16.8 kB 3/3 ±0 2,505 +1% 22.1s Wayback
Sep 19, 2026, 7:14 PM UTC 100 1.28 s 0 0 ms 17.0 kB 3/3 ±0 3,023 +22% 20.5s Wayback
Sep 12, 2026, 6:11 PM UTC 100 792 ms 0 0 ms 16.8 kB 3/3 ±0 2,455 -1% 21.6s Wayback
Sep 5, 2026, 3:52 PM UTC 100 799 ms 0 0 ms 16.8 kB 3/3 ±0 3,268 +31% 21.8s Wayback
Aug 29, 2026, 12:27 PM UTC 100 1.24 s 0 0 ms 16.9 kB 3/3 ±0 2,366 -5% 21.5s Wayback
Aug 21, 2026, 1:19 AM UTC 100 806 ms 0 0 ms 16.8 kB 3/3 ±0 2,453 -1% 21.8s Wayback

Embed this score

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