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

mochajs.org

https://mochajs.org/

100PERF 100A11Y 100BEST 91SEO !AXE ✓CWV

Ranks Overall #773 Developer Tooling #13 Test Runners #2

Data from Oct 6, 2026, 11:09 PM UTC old Measured every 2 days · 25 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 7.2.9 Built with Astro 7.2.9
Netlify Hosted by Netlify

Filmstrip LAB Throttled

How the page drew during the measured load, at 8 points across 3.08 s. Compare this filmstrip against another site.

  1. 385 ms
  2. 770 ms
  3. 1.16 s
  4. 1.54 s
  5. 1.92 s
  6. 2.31 s
  7. 2.69 s
  8. 3.08 s

Lighthouse Scores LAB Simulated

100
Performance
no change
100
Accessibility
no change
100
Best Practices
no change
91
SEO
no change

Metrics LAB FIELD

Core Web Vitals: passing 2 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 1.56 s good ↓ -144 ms (-8.4%) significant 907 ms – 1.86 s 1.28 s good 95.2% 3.8% 1%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — — —
CLS CWV Cumulative Layout Shift 0 good → no change 0 – 0 0 good 95.5% 2.6% 1.9%
TBT Total Blocking Time 0 ms good → no change 0 ms – 48 ms n/a —
FCP First Contentful Paint 931 ms good ↑ +11 ms (+1.2%) 906 ms – 945 ms 1.23 s good 92.2% 6.1% 1.7%
Speed Index 931 ms good ↑ +11 ms (+1.2%) 906 ms – 945 ms n/a —
TTFB Time to First Byte 631 ms good ↑ +11 ms (+1.8%) 601 ms – 635 ms 757 ms good 76.9% 20.2% 2.9%

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.

element render delay 782 ms
time to first byte 607 ms

LCP LAB Simulated vs LCP FIELD

Lab 1.56 s
Field p75 1.28 s

The lab LCP is 1.22× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 263 kB ↓ -34.7 kB (-11.9%) significant 263 kB – 334 kB
Requests 100 → no change 97 – 111
Third-party Weight 204 kB ↓ -34.7 kB (-14.8%) significant 204 kB – 274 kB
Third-party CPU 8 ms ↓ -1 ms (-12%) 7 ms – 37 ms
Unused JS 29.3 kB ↑ +10 B 29.1 kB – 30.3 kB
Unused CSS 0 B → no change 0 B – 0 B

By resource type

Type Transfer Share Size Requests
image 63% 166 kB 86
script 27.1% 71.3 kB 8
stylesheet 4.9% 12.9 kB 2
document 4.6% 12.1 kB 1
other 0.5% 1.2 kB 3
Total 263 kB 100

Third parties 4 entities

Entity Transfer Size Main thread Simulated
opencollective.com image 156 kB 0 ms
Matomo script 45.2 kB 8 ms
Netlify 1.7 kB 0 ms
shields.io 1.2 kB 0 ms
Total 204 kB 8 ms

Without JavaScript

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

Scripts disabled
As rendered

91.9% of pixels differ — the page changes substantially. 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 563 ms ↓ -142 ms (-20.1%) 476 ms – 1.10 s
Long Tasks 0 → no change 0 – 3
DOM Elements 660 → no change 654 – 682
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 1 → no change 1 – 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 55% 311 ms
script evaluation 17% 95 ms
style layout 14% 78 ms
paint composite render 6% 35 ms
parse HTML 4% 25 ms
script parse compile 2% 13 ms
garbage collection 1% 7 ms
Total 563 ms

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 803 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

SEO failures 1 of 8 audits

  • crawlable-anchors — Links are not crawlable 4 items

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
2026-10-03 1.27 s — 0 1.18 s 752 ms
2026-09-26 1.27 s — 0 1.17 s 802 ms
2026-09-19 1.44 s — 0 1.40 s 953 ms
2026-09-12 1.40 s — 0 1.33 s 924 ms
2026-09-05 1.38 s — 0 1.30 s 966 ms
2026-08-29 1.49 s — 0 1.38 s 1.09 s
2026-08-22 1.38 s — 0 1.30 s 1.09 s
2026-08-15 1.40 s — 0 1.30 s 1.05 s
2026-08-08 1.23 s 156 ms 0 1.23 s 988 ms
2026-08-01 1.14 s — 0 1.10 s 985 ms
2026-07-25 1.14 s 142 ms 0 1.12 s 840 ms
2026-07-18 1.14 s — 0 1.13 s 733 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 6, 2026, 11:09 PM UTC 100 1.56 s 0 0 ms 263 kB 3/3 ±4 3,285 +32% 49.7s Wayback
Oct 3, 2026, 8:53 PM UTC 100 1.71 s 0 0 ms 299 kB 3/3 ±0 2,902 +17% 50.5s Wayback
Oct 1, 2026, 2:17 PM UTC 100 907 ms 0 0 ms 302 kB 3/3 ±1 2,979 +20% 48.7s Wayback
Sep 29, 2026, 11:23 AM UTC 100 1.56 s 0 0 ms 301 kB 3/3 ±0 2,965 +19% 50.2s Wayback
Sep 25, 2026, 4:41 PM UTC 100 1.56 s 0 0 ms 300 kB 3/3 ±9 2,926 +18% 51.5s Wayback
Sep 23, 2026, 10:58 AM UTC 100 1.79 s 0 0 ms 301 kB 3/3 ±0 2,494 0% 54.4s Wayback
Sep 21, 2026, 7:47 AM UTC 100 1.86 s 0 8 ms 297 kB 3/3 ±0 2,488 0% 54.4s Wayback
Sep 18, 2026, 1:43 PM UTC 100 1.86 s 0 8 ms 300 kB 3/3 ±0 2,487 0% 56.8s Wayback
Sep 16, 2026, 9:16 AM UTC 100 1.72 s 0 0 ms 267 kB 3/3 ±0 4,448 +79% 46.6s Wayback
Sep 14, 2026, 6:02 AM UTC 100 1.72 s 0 0 ms 301 kB 3/3 ±0 2,438 -2% 54.9s Wayback
Sep 11, 2026, 11:19 PM UTC 100 1.56 s 0 48 ms 298 kB 3/3 ±0 2,437 -2% 56s Wayback
Sep 9, 2026, 8:43 PM UTC 100 1.57 s 0 1 ms 298 kB 3/3 ±0 3,344 +35% 29.9s Wayback
Sep 7, 2026, 7:20 PM UTC 100 1.57 s 0 0 ms 288 kB 3/3 ±0 2,487 0% 32.4s Wayback
Sep 5, 2026, 8:08 AM UTC 100 1.56 s 0 0 ms 291 kB 3/3 ±4 2,335 -6% 31.4s Wayback
Sep 4, 2026, 1:01 AM UTC 100 1.57 s 0 0 ms 292 kB 3/3 ±3 3,079 +24% 30.7s Wayback
Sep 2, 2026, 11:12 PM UTC 100 1.74 s 0 2 ms 309 kB 3/3 ±0 2,332 -6% 32.7s Wayback
Sep 1, 2026, 10:44 PM UTC 100 1.71 s 0 0 ms 320 kB 3/3 ±0 2,291 -8% 31.1s Wayback
Aug 31, 2026, 9:03 PM UTC 100 1.56 s 0 0 ms 318 kB 3/3 ±5 2,488 0% 36.4s Wayback
Aug 27, 2026, 4:07 PM UTC 100 1.85 s 0 0 ms 334 kB 3/3 ±11 2,440 -2% 35s Wayback
Aug 26, 2026, 6:47 AM UTC 100 1.78 s 0 0 ms 334 kB 3/3 ±12 2,467 -1% 37.3s Wayback
Aug 25, 2026, 6:44 AM UTC 100 1.75 s 0 0 ms 334 kB 3/3 ±15 2,361 -5% 36.3s Wayback
Aug 24, 2026, 5:37 AM UTC 100 1.81 s 0 0 ms 334 kB 3/3 ±10 2,482 0% 37.2s Wayback
Aug 23, 2026, 5:28 AM UTC 100 1.77 s 0 0 ms 334 kB 3/3 ±1 2,496 0% 33s Wayback
Aug 22, 2026, 5:26 AM UTC 100 1.78 s 0 1 ms 333 kB 3/3 ±10 2,333 -6% 36.3s Wayback
Aug 21, 2026, 4:45 AM UTC 100 1.78 s 0 0 ms 334 kB 3/3 ±0 2,467 -1% 31.8s Wayback