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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.

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trailbuddy-astro-view-transition-demo.netlify.app

https://trailbuddy-astro-view-transition-demo.netlify.app/

54PERF 93A11Y 100BEST 91SEO ✗AXE –CWV

Ranks Overall #1,472 Astro Showcase #150

Data from Oct 2, 2026, 1:51 PM 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 3.2.0 Built with Astro 3.2.0
Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

54
Performance
no change
93
Accessibility
no change
100
Best Practices
no change
91
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 25.78 s poor — 25.78 s – 25.78 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0.318 poor — 0.318 – 0.318
TBT Total Blocking Time 0 ms good — 0 ms – 0 ms
FCP First Contentful Paint 2.83 s needs work — 2.83 s – 2.83 s
Speed Index 2.83 s good — 2.83 s – 2.83 s
TTFB Time to First Byte 728 ms good — 728 ms – 728 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.

resource load duration 148 ms
time to first byte 118 ms
element render delay 61 ms
resource load delay 8 ms

Page weight

Metric Value Change / range Trend
Page Weight 6.98 MB — 6.98 MB – 6.98 MB
Requests 19 — 19 – 19
Third-party Weight 137 kB — 137 kB – 137 kB
Third-party CPU 0 ms — 0 ms – 0 ms
Unused JS 0 B — 0 B – 0 B
Unused CSS 0 B — 0 B – 0 B

By resource type

Type Transfer Share Size Requests
image 69.1% 4.82 MB 8
media 28.5% 1.99 MB 3
font 2.2% 150 kB 2
stylesheet 0.1% 6.7 kB 3
document 0.1% 6.1 kB 1
script <0.1% 2.5 kB 1
other <0.1% 849 B 1
Total 6.98 MB 19

Third parties 1 entities

Entity Transfer Size Main thread Simulated
Adobe TypeKit font 137 kB 0 ms
Total 137 kB 0 ms

Page health

Metric Value Change / range Trend
Main Thread Work 520 ms — 520 ms – 520 ms
Long Tasks 1 — 1 – 1
DOM Elements 98 — 98 – 98
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 6 — 6 – 6
A11y Failures 1 — 1 – 1
A11y Failing Nodes 5 — 5 – 5

Main thread work

Task Time Share Duration Simulated
other 79% 411 ms
style layout 10% 51 ms
paint composite render 4% 19 ms
script evaluation 4% 18 ms
parse HTML 3% 17 ms
garbage collection 1% 4 ms
script parse compile 0% 1 ms
Total 520 ms

Axe violations axe-core 4.13.0, full rule set

6 violating nodes across 2 rules, 110 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 5 nodes
    Offending elements
    1. .w-\[90px\] 
      <button type="button" class="h-8 w-[90px] rounded-xl bg-red-orange text-sm uppercase leading-none text-white outline-none outline-offset-2 transition-colors hover:bg-red-orange-hover focus-visible:ou…
    2. div[data-astro-transition-scope="astro-focsh4at-24"] > p 
      <p class="font-semibold">Sarah Johnson</p>
    3. div[data-astro-transition-scope="astro-focsh4at-24"] > time 
      <time datetime="Thu Jun 01 2023 00:00:00 GMT+0000 (Coordinated Universal Time)">June 2023</time>
    4. div[data-astro-transition-scope="astro-bluqtunt-19"] > .text-3xl 
      <h1 class="text-balance font-sans text-3xl font-semibold uppercase leading-none">Yellowstone</h1>
    5. div[data-astro-transition-scope="astro-bluqtunt-19"] > h2 
      <h2 class="text-balance font-sans text-lg">Big Falls Hike</h2>
  • moderate region — All page content should be contained by landmarks 1 node
    Offending element
    1. .fixed > span 
      <span class="sr-only">Viget</span>

Accessibility failures 1 of 14 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 5 nodes

SEO failures 1 of 8 audits

  • meta-description — Document does not have a meta description

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 2, 2026, 1:51 PM UTC 54 25.78 s 0.318 0 ms 6.98 MB 3/3 ±1 2,977 +20% 22.5s Wayback