speedlify2

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

Charts Compare Measurement runs Embed a score

lenny.fyi

https://lenny.fyi/

93 100 100 100 ✓AXE –CWV

Ranks Overall #362 Built Awesome #293

Data from Sep 5, 2026, 8:03 PM UTC old Measured once a week · 3 runs since Aug 21, 2026

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

Stack

Self-hosted · nginx Hosted by Self-hosted

Lighthouse Scores

93
Performance
↓ -6 (-6.1%)
100
Accessibility
no change
100
Best Practices
no change
100
SEO
no change

Metrics Lighthouse, mobile

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 Lighthouse
Value Change / range Trend
LCP CWV (estimate) Largest Contentful Paint 2.82 s needs work ↑ +774 ms (+37.8%) significant 2.05 s – 2.82 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 1.26 s good ↑ +153 ms (+13.8%) significant 1.11 s – 1.26 s
Speed Index 4.03 s needs work ↑ +1692 ms (+72.2%) 2.34 s – 4.03 s
TTFB Time to First Byte 1.06 s needs work ↑ +134 ms (+14.5%) significant 922 ms – 1.06 s

LCP Subparts lab observed, unthrottled

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

element render delay 2.18 s
time to first byte 165 ms

Page weight

Metric Value Change / range Trend
Page Weight 141 kB ↑ +3.0 kB (+2.2%) 138 kB – 141 kB
Requests 21 ↑ +1 (+5%) significant 20 – 21
Third-party Weight 437 B ↑ +437 B 0 B – 437 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

  • font 79.6% 99.5 kB · 4 req
  • image 10.7% 13.4 kB · 1 req
  • stylesheet 4.9% 6.2 kB · 1 req
  • script 2.6% 3.3 kB · 1 req
  • document 1.8% 2.2 kB · 1 req
  • other 0.3% 437 B · 1 req

Third parties 1 entities

437 B transferred, 0 ms on the main thread.

speedlify.dev other 437 B · 0 ms CPU

Page health

Metric Value Change / range Trend
Main Thread Work 261 ms ↑ +84 ms (+47.8%) 176 ms – 261 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 121 ↑ +30 (+33%) significant 90 – 121
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 → no change 0 – 1
A11y Failures 0 → no change 0 – 0
A11y Failing Nodes 0 → no change 0 – 0

Main thread work

other 112 ms
style layout 106 ms
script evaluation 22 ms
paint composite render 13 ms
parse HTML 8 ms
script parse compile 1 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 348 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 Archive
Sep 5, 2026, 8:03 PM UTC 93 2.82 s 0 0 ms 141 kB 3/3 ±8 2,472 0% 28s Wayback
Aug 29, 2026, 7:40 PM UTC 99 2.05 s 0 0 ms 138 kB 3/3 ±8 3,063 +23% 25.4s Wayback
Aug 21, 2026, 3:09 AM UTC 97 2.05 s 0 0 ms 138 kB 3/3 ±2 2,431 -2% 27.7s Wayback

Embed this score

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