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

jhey.dev

https://www.jhey.dev/

95PERF 92A11Y 96BEST 100SEO ✗AXE !CWV

Ranks Overall #1,491 11ty Emeritus

Data from Sep 21, 2026, 1:08 AM UTC old Measured once a month · 5 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

Astro Built with Astro
Vercel Hosted by Vercel

Lighthouse Scores LAB Simulated

95
Performance
↑ +1 (+1.1%)
92
Accessibility
no change
96
Best Practices
no change
100
SEO
no change

Metrics LAB FIELD

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

Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-08-23 → 2026-09-19), url-level.

Metric Lab Simulated Field
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 2.99 s needs work ↓ -29 ms (-1%) 2.99 s – 3.02 s 3.12 s needs work 69.5% 12.3% 18.2%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — 81 ms good 92.9% 4% 3.1%
CLS CWV Cumulative Layout Shift 0 good → no change 0 – 0 0 good 97.2% 2.4% 0.4%
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms n/a —
FCP First Contentful Paint 961 ms good ↑ +46 ms (+5%) significant 912 ms – 961 ms 1.71 s good 77.4% 13.9% 8.8%
Speed Index 1.54 s good ↓ -25 ms (-1.6%) 1.40 s – 1.57 s n/a —
TTFB Time to First Byte 661 ms good ↑ +46 ms (+7.5%) significant 612 ms – 661 ms 1.10 s needs work 61.9% 26.7% 11.4%

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 1.69 s
time to first byte 52 ms

LCP LAB Simulated vs LCP FIELD

Lab 2.99 s
Field p75 3.12 s

The lab LCP is 0.96× the field p75 — real users likely have similar hardware or network connectivity to the lab test.

Page weight

Metric Value Change / range Trend
Page Weight 321 kB ↓ -353 B (-0.1%) 318 kB – 322 kB
Requests 31 → no change 30 – 31
Third-party Weight 4.7 kB ↓ -207 B (-4.2%) 2.6 kB – 5.6 kB
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
font 79.4% 255 kB 20
script 10.3% 33.2 kB 2
other 3.6% 11.7 kB 5
document 2.6% 8.4 kB 1
stylesheet 2.5% 8.0 kB 1
image 1.5% 4.7 kB 2
Total 321 kB 31

Third parties 1 entities

Entity Transfer Size Main thread Simulated
weatherapi.com image 4.7 kB 0 ms
Total 4.7 kB 0 ms

Page health

Metric Value Change / range Trend
Main Thread Work 677 ms ↓ -256 ms (-27.5%) 641 ms – 959 ms
Long Tasks 0 → no change 0 – 1
DOM Elements 92 → no change 92 – 92
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 19 → no change 18 – 19
A11y Failures 2 → no change 2 – 2
A11y Failing Nodes 19 → no change 18 – 19

Main thread work

Task Time Share Duration Simulated
other 41% 280 ms
style layout 19% 131 ms
script evaluation 16% 109 ms
parse HTML 11% 75 ms
paint composite render 11% 74 ms
garbage collection 1% 6 ms
script parse compile 0% 2 ms
Total 677 ms

Axe violations axe-core 4.13.0, full rule set

19 violating nodes across 2 rules, 185 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 11 nodes
  • serious link-in-text-block — Links must be distinguishable without relying on color 8 nodes

Accessibility failures 2 of 24 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 11 nodes
  • link-in-text-block — Links rely on color to be distinguishable. 8 nodes

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
2026-09-26 3.19 s 81 ms 0 1.80 s 1.11 s
2026-09-19 3.12 s 81 ms 0 1.71 s 1.10 s
2026-09-12 — 82 ms 0 1.56 s 1.04 s
2026-09-05 — — 0 1.45 s 942 ms
2026-08-29 — — 0 1.38 s 874 ms
2026-08-22 — — 0 1.37 s 907 ms
2026-08-15 — — 0 1.46 s 993 ms
2026-08-08 — — 0 1.49 s 997 ms
2026-08-01 — — 0 1.46 s 997 ms
2026-07-25 — — 0 1.49 s 1.05 s
2026-07-18 — — 0 1.49 s 997 ms
2026-07-11 — — 0 1.53 s 1.11 s

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Sep 21, 2026, 1:08 AM UTC 95 2.99 s 0 0 ms 321 kB 3/3 ±0 3,034 +22% 23.6s Wayback
Sep 14, 2026, 12:46 AM UTC 94 3.02 s 0 0 ms 322 kB 3/3 ±1 2,945 +18% 22.3s Wayback
Sep 6, 2026, 11:31 PM UTC 95 3.01 s 0 0 ms 322 kB 3/3 ±1 3,115 +25% 22.2s Wayback
Aug 30, 2026, 11:13 PM UTC 94 3.02 s 0 0 ms 321 kB 3/3 ±1 2,483 0% 24.5s Wayback
Aug 21, 2026, 12:47 PM UTC 94 3.02 s 0 0 ms 318 kB 3/3 ±0 2,483 0% 24.4s Wayback