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

cli.netlify.com

https://cli.netlify.com/

83PERF 100A11Y 100BEST 100SEO ✓AXE ✓CWV

Ranks Overall #461 Astro Showcase #20

Data from Oct 2, 2026, 6:47 AM UTC old Measured once a month · 1 run since Oct 2, 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

Astro 7.2.9 Built with Astro 7.2.9
Uses SvelteSvelte
Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

83
Performance
no change
100
Accessibility
no change
100
Best Practices
no change
100
SEO
no change

Metrics LAB FIELD

Core Web Vitals: passing 3 of 3 assessed from real Chrome users.

Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-09-02 → 2026-09-29), origin-level.

Metric Lab Simulated Field
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 3.56 s needs work — 3.56 s – 3.56 s 1.60 s good 91.1% 5.6% 3.3%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — 137 ms good 88.4% 9.2% 2.5%
CLS CWV Cumulative Layout Shift 0.012 good — 0.012 – 0.012 0.010 good 91.5% 6.2% 2.3%
TBT Total Blocking Time 234 ms needs work — 234 ms – 234 ms n/a —
FCP First Contentful Paint 2.44 s needs work — 2.44 s – 2.44 s 1.45 s good 83.5% 12.5% 4%
Speed Index 2.44 s good — 2.44 s – 2.44 s n/a —
TTFB Time to First Byte 605 ms good — 605 ms – 605 ms 785 ms good 75.5% 19.4% 5.1%

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 151 ms
time to first byte 6 ms

LCP LAB Simulated vs LCP FIELD

Lab 3.56 s
Field p75 1.60 s

The lab LCP is 2.23× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 523 kB — 523 kB – 523 kB
Requests 26 — 26 – 26
Third-party Weight 407 kB — 407 kB – 407 kB
Third-party CPU 137 ms — 137 ms – 137 ms
Unused JS 145 kB — 145 kB – 145 kB
Unused CSS 0 B — 0 B – 0 B

By resource type

Type Transfer Share Size Requests
script 70.4% 368 kB 9
font 22.8% 119 kB 5
stylesheet 3.9% 20.4 kB 4
document 2.2% 11.4 kB 1
image 0.5% 2.8 kB 2
other 0.1% 750 B 3
Total 523 kB 26

Third parties 3 entities

Entity Transfer Size Main thread Simulated
Google Tag Manager script 339 kB 137 ms
Google Fonts font 67.9 kB 0 ms
Google Analytics 96 B 0 ms
Total 407 kB 137 ms

Page health

Metric Value Change / range Trend
Main Thread Work 1.21 s — 1.21 s – 1.21 s
Long Tasks 6 — 6 – 6
DOM Elements 1,078 — 1,078 – 1,078
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 — 0 – 0
A11y Failures 0 — 0 – 0
A11y Failing Nodes 0 — 0 – 0

Main thread work

Task Time Share Duration Simulated
script evaluation 44% 534 ms
style layout 23% 280 ms
other 17% 207 ms
script parse compile 10% 122 ms
paint composite render 3% 37 ms
parse HTML 2% 26 ms
Total 1.21 s

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 1258 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

Field history 25 weeks

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

Week ending LCPINPCLSFCPTTFB
2026-09-26 1.62 s 137 ms 0.010 1.47 s 808 ms
2026-09-19 1.50 s 130 ms 0 1.35 s 782 ms
2026-09-12 1.46 s 127 ms 0 1.29 s 769 ms
2026-09-05 1.48 s 126 ms 0 1.29 s 743 ms
2026-08-29 1.44 s 126 ms 0 1.24 s 718 ms
2026-08-22 1.48 s 134 ms 0 1.28 s 743 ms
2026-08-15 1.46 s 125 ms 0 1.27 s 707 ms
2026-08-08 1.43 s — 0 1.26 s 712 ms
2026-08-01 1.51 s — 0 1.27 s 699 ms
2026-07-25 1.42 s — 0 1.27 s 712 ms
2026-07-18 1.34 s — 0 1.21 s 631 ms
2026-07-11 1.24 s 157 ms 0 1.09 s 581 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 2, 2026, 6:47 AM UTC 83 3.56 s 0.012 234 ms 523 kB 3/3 ±33 2,495 0% 30.6s Wayback