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

sonnet.io

https://sonnet.io/

84PERF 100A11Y 96BEST 100SEO ✓AXE –CWV

Ranks Overall #490 Built Awesome #375

Data from Oct 4, 2026, 7:22 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).

Stack

Vercel Hosted by Vercel

Lighthouse Scores LAB Simulated

84
Performance
no change
100
Accessibility
no change
96
Best Practices
no change
100
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 3.36 s needs work ↑ +1 ms 1.56 s – 3.36 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0.070 good → no change 0.054 – 0.070
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms
FCP First Contentful Paint 3.36 s poor ↑ +1 ms 1.56 s – 3.36 s
Speed Index 3.36 s good ↑ +1 ms 1.56 s – 3.36 s
TTFB Time to First Byte 619 ms good ↑ +6 ms (+1%) 612 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 80 ms
time to first byte 12 ms

Page weight

Metric Value Change / range Trend
Page Weight 195 kB ↓ -5 B 195 kB – 196 kB
Requests 11 → no change 11 – 11
Third-party Weight 184 kB → no change 184 kB – 184 kB
Third-party CPU 2 ms → no change 2 ms – 2 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
font 92.6% 180 kB 3
stylesheet 4.5% 8.9 kB 2
other 1.1% 2.1 kB 4
document 1% 2.0 kB 1
script 0.8% 1.6 kB 1
Total 195 kB 11

Third parties 2 entities

Entity Transfer Size Main thread Simulated
Google Fonts font 181 kB 0 ms
vercel.app 2.3 kB 2 ms
Total 184 kB 2 ms

Page health

Metric Value Change / range Trend
Main Thread Work 145 ms ↓ -16 ms (-9.9%) 137 ms – 192 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 42 → no change 42 – 42
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

Task Time Share Duration Simulated
other 53% 76 ms
style layout 26% 38 ms
script evaluation 11% 16 ms
parse HTML 4% 7 ms
paint composite render 4% 6 ms
script parse compile 2% 2 ms
Total 145 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 98 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Best Practices failures 1 of 19 audits

  • errors-in-console — Browser errors were logged to the console 1 item

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2 1 console error

Measurement log

Field history 25 weeks

Weekly p75 from the CrUX History API, backfilled in a single request.

Week ending LCPINPCLSFCPTTFB
2026-05-09 → 2026-09-26 No data — 21 weeks under the CrUX reporting threshold
2026-05-02 1.17 s — 0 1.16 s 476 ms
2026-04-25 1.46 s — 0 1.34 s 522 ms
2026-04-18 1.49 s — 0 1.34 s 533 ms
2026-04-11 1.47 s — 0 1.32 s 545 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 4, 2026, 7:22 PM UTC 84 3.36 s 0.070 0 ms 195 kB 3/3 ±14 2,503 +1% 24.8s Wayback
Sep 27, 2026, 5:41 PM UTC 84 3.36 s 0.070 0 ms 195 kB 3/3 ±0 2,481 0% 28.1s Wayback
Sep 20, 2026, 2:40 PM UTC 98 1.58 s 0.070 0 ms 196 kB 3/3 ±1 2,981 +20% 24.9s Wayback
Sep 13, 2026, 1:55 PM UTC 84 3.35 s 0.070 0 ms 195 kB 3/3 ±0 2,507 +1% 24.9s Wayback
Sep 6, 2026, 10:29 AM UTC 98 1.58 s 0.070 0 ms 196 kB 3/3 ±1 2,645 +6% 25.1s Wayback
Aug 30, 2026, 8:04 AM UTC 99 1.56 s 0.054 0 ms 195 kB 3/3 ±1 3,249 +31% 24.1s Wayback
Aug 21, 2026, 6:52 AM UTC 84 3.34 s 0.070 0 ms 196 kB 3/3 ±0 2,494 0% 24.6s Wayback

Embed this score

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