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

deno.com/deploy

https://deno.com/deploy

65PERF 100A11Y 96BEST 100SEO !AXE ✗CWV

Ranks Overall #1,504 Developer Tooling #58 Web Hosts #6

Data from Oct 6, 2026, 11:03 PM UTC old Measured every 2 days · 25 runs since Aug 20, 2026

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

The measuring machine was faster than most in this project.

Lighthouse benchmark index was 3,417, 37% faster than this project's median of 2,486. CPU-bound metrics — TBT, TTI, main thread work — are affected by this and may have moved without the site changing at all.

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

Stack

de Hosted by deployd

Filmstrip LAB Throttled

How the page drew during the measured load, at 8 points across 10.09 s. Compare this filmstrip against another site.

  1. 1.26 s
  2. 2.52 s
  3. 3.79 s
  4. 5.05 s
  5. 5.36 s
  6. 7.57 s
  7. 8.83 s
  8. 10.09 s

Lighthouse Scores LAB Simulated

65
Performance
↑ +20 (+44.4%)
100
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 (2026-09-07 → 2026-10-04), url-level.

Metric Lab Simulated Field
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 11.13 s poor ↑ +1742 ms (+18.5%) 9.09 s – 11.65 s 3.76 s needs work 58% 18.1% 23.9%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — 168 ms good 79.6% 17.6% 2.8%
CLS CWV Cumulative Layout Shift 0 good ↓ -0.614 (-100%) 0 – 0.637 0.660 poor 58.7% 1.9% 39.4%
TBT Total Blocking Time 41 ms good ↑ +29 ms (+241.7%) 0 ms – 237 ms n/a —
FCP First Contentful Paint 3.81 s poor ↑ +459 ms (+13.7%) significant 3.13 s – 3.81 s 3.13 s poor 51.2% 22% 26.9%
Speed Index 4.38 s needs work ↑ +710 ms (+19.4%) significant 3.44 s – 10.59 s n/a —
TTFB Time to First Byte 626 ms good ↓ -28 ms (-4.3%) 605 ms – 5.12 s 1.42 s needs work 45.5% 37.1% 17.4%

LCP Subparts LAB Throttled

The subparts attribute LCP to your server, resource discovery, download, or rendering. They come from one throttled load, the same one as the filmstrip, so they add up to that load’s LCP rather than the simulated Lab LCP above.

resource load duration 9.21 s
time to first byte 588 ms
resource load delay 228 ms
element render delay 67 ms

LCP LAB Simulated vs LCP FIELD

Lab 11.13 s
Field p75 3.76 s

The lab LCP is 2.96× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 4.37 MB ↑ +697 B 4.36 MB – 4.37 MB
Requests 64 → no change 64 – 68
Third-party Weight 0 B → no change 0 B – 0 B
Third-party CPU 0 ms → no change 0 ms – 0 ms
Unused JS 158 kB ↓ -22 B 157 kB – 158 kB
Unused CSS 47.8 kB → no change 47.8 kB – 47.8 kB

By resource type

Type Transfer Share Size Requests
media 45.1% 1.97 MB 2
image 29.6% 1.29 MB 20
font 9.3% 407 kB 5
script 7% 308 kB 24
stylesheet 4.7% 205 kB 4
document 4.1% 180 kB 1
other 0.1% 5.6 kB 2
Total 4.37 MB 64

Without JavaScript

The same load, photographed twice at 412×823: once with scripts disabled, once as rendered.

Scripts disabled
As rendered

13.2% of pixels differ — parts of the page change. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.

Page health

Metric Value Change / range Trend
Main Thread Work 1.45 s ↓ -204 ms (-12.3%) 1.22 s – 4.28 s
Long Tasks 4 ↑ +1 (+33.3%) 3 – 14
DOM Elements 916 → no change 916 – 926
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 2 → no change 2 – 2
A11y Failures 0 → no change 0 – 0
A11y Failing Nodes 0 → no change 0 – 0

Main thread work

Task Time Share Duration Simulated
other 49% 716 ms
style layout 24% 343 ms
script evaluation 17% 251 ms
paint composite render 4% 54 ms
parse HTML 3% 47 ms
script parse compile 1% 21 ms
garbage collection 1% 18 ms
Total 1.45 s

Axe violations axe-core 4.13.0, full rule set

2 violating nodes across 2 rules, 1146 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Best Practices failures 1 of 16 audits

  • errors-in-console — Browser errors were logged to the console 2 items

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2 2 console errors

Measurement log

Field history 25 weeks

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

Week ending LCPINPCLSFCPTTFB
2026-10-03 3.81 s 159 ms 0.670 3.19 s 1.43 s
2026-09-26 3.50 s 165 ms 0.650 2.90 s 1.37 s
2026-09-19 3.50 s 166 ms 0.650 2.88 s 1.32 s
2026-09-12 3.73 s 178 ms 0.660 2.90 s 1.32 s
2026-09-05 3.64 s 179 ms 0.660 2.85 s 1.29 s
2026-08-29 3.44 s 202 ms 0.660 2.79 s 1.30 s
2026-08-22 3.33 s 227 ms 0.650 2.67 s 1.32 s
2026-08-15 3.08 s 235 ms 0.620 2.46 s 1.30 s
2026-08-08 3.11 s 247 ms 0.630 2.52 s 1.32 s
2026-08-01 3.24 s 254 ms 0.610 2.53 s 1.38 s
2026-07-25 3.15 s 249 ms 0.620 2.49 s 1.38 s
2026-07-18 3.29 s 244 ms 0.640 2.66 s 1.42 s

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 6, 2026, 11:03 PM UTC 65 11.13 s 0 41 ms 4.37 MB 3/3 ±22 3,417 +37% 80.4s Wayback
Oct 3, 2026, 8:46 PM UTC 45 9.39 s 0.614 12 ms 4.37 MB 3/3 ±23 3,067 +23% 93.4s Wayback
Oct 1, 2026, 6:56 AM UTC 67 11.13 s 0 27 ms 4.37 MB 3/3 ±1 2,380 -4% 86.8s Wayback
Sep 29, 2026, 4:57 AM UTC 45 11.14 s 0.614 21 ms 4.37 MB 3/3 ±22 2,284 -8% 87.4s Wayback
Sep 25, 2026, 5:57 AM UTC 67 11.13 s 0 140 ms 4.37 MB 3/3 ±22 2,486 0% 87.5s Wayback
Sep 23, 2026, 5:48 AM UTC 45 11.37 s 0.614 28 ms 4.37 MB 3/3 ±23 2,429 -2% 88s Wayback
Sep 21, 2026, 1:13 AM UTC 44 9.59 s 0.614 90 ms 4.37 MB 3/3 ±7 2,446 -2% 107.7s Wayback
Sep 18, 2026, 1:35 PM UTC 37 11.36 s 0.637 83 ms 4.37 MB 3/3 ±0 2,446 -2% 121s Wayback
Sep 16, 2026, 9:10 AM UTC 46 9.61 s 0.614 0 ms 4.37 MB 3/3 ±22 4,588 +85% 75.7s Wayback
Sep 14, 2026, 5:52 AM UTC 66 11.29 s 0 25 ms 4.37 MB 3/3 ±1 2,498 0% 89.4s Wayback
Sep 11, 2026, 11:11 PM UTC 45 9.59 s 0.614 4 ms 4.37 MB 3/3 ±1 2,453 -1% 88.2s Wayback
Sep 9, 2026, 8:37 PM UTC 68 11.35 s 0 24 ms 4.37 MB 3/3 ±23 3,414 +37% 44.7s Wayback
Sep 7, 2026, 7:14 PM UTC 45 9.71 s 0.614 24 ms 4.37 MB 3/3 ±23 2,487 0% 48.3s Wayback
Sep 5, 2026, 3:19 AM UTC 67 11.36 s 0 10 ms 4.37 MB 3/3 ±22 2,343 -6% 46.7s Wayback
Sep 4, 2026, 12:57 AM UTC 67 11.37 s 0 6 ms 4.37 MB 3/3 ±23 3,047 +23% 44.9s Wayback
Sep 2, 2026, 11:07 PM UTC 67 11.35 s 0 20 ms 4.37 MB 3/3 ±0 2,321 -7% 46.8s Wayback
Sep 1, 2026, 8:51 PM UTC 45 11.36 s 0.614 17 ms 4.37 MB 3/3 ±1 3,089 +24% 43.8s Wayback
Aug 31, 2026, 6:05 PM UTC 67 11.35 s 0 5 ms 4.37 MB 3/3 ±4 2,327 -6% 46.5s Wayback
Aug 27, 2026, 4:15 AM UTC 38 9.09 s 0.614 26 ms 4.37 MB 3/3 ±6 2,490 0% 68.6s Wayback
Aug 25, 2026, 11:25 PM UTC 44 9.81 s 0.614 24 ms 4.37 MB 3/3 ±21 2,413 -3% 49.4s Wayback
Aug 24, 2026, 11:21 PM UTC 45 11.42 s 0.614 59 ms 4.36 MB 3/3 ±23 3,550 +43% 48.1s Wayback
Aug 23, 2026, 11:19 PM UTC 67 11.51 s 0 89 ms 4.36 MB 3/3 ±24 2,313 -7% 49.5s Wayback
Aug 22, 2026, 10:20 PM UTC 45 11.52 s 0.614 37 ms 4.37 MB 3/3 ±24 2,376 -4% 49.8s Wayback
Aug 21, 2026, 9:23 PM UTC 61 11.65 s 0 237 ms 4.37 MB 3/3 ±20 2,028 -18% 53.5s Wayback
Aug 20, 2026, 8:28 PM UTC 45 9.65 s 0.614 13 ms 4.36 MB 3/3 ±19 2,486 0% 48.7s Wayback