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.

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readhostel.com

https://www.readhostel.com/

94PERF 92A11Y 100BEST 91SEO ✗AXE –CWV

Ranks Overall #1,287 Built Awesome #881

Data from Oct 5, 2026, 11:55 PM UTC old Measured once a week · 7 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

Vercel Hosted by Vercel

Lighthouse Scores LAB Simulated

94
Performance
↑ +1 (+1.1%)
92
Accessibility
↓ -3 (-3.2%)
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 2.72 s needs work ↓ -27 ms (-1%) 2.72 s – 2.78 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0 good → no change 0 – 0
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms
FCP First Contentful Paint 2.27 s needs work ↓ -28 ms (-1.2%) 2.27 s – 2.33 s
Speed Index 2.27 s good ↓ -28 ms (-1.2%) 2.27 s – 2.33 s
TTFB Time to First Byte 611 ms good ↓ -15 ms (-2.4%) 607 ms – 642 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.

element render delay 265 ms
time to first byte 7 ms

Page weight

Metric Value Change / range Trend
Page Weight 261 kB ↑ +16 B 261 kB – 261 kB
Requests 5 → no change 5 – 5
Third-party Weight 128 kB ↓ -4 B 128 kB – 128 kB
Third-party CPU 31 ms ↓ -2 ms (-4.6%) 31 ms – 32 ms
Unused JS 43.3 kB → no change 43.3 kB – 43.3 kB
Unused CSS 0 B → no change 0 B – 0 B

By resource type

Type Transfer Share Size Requests
image 49.1% 128 kB 1
script 48.6% 127 kB 1
document 1.9% 5.0 kB 1
stylesheet 0.3% 801 B 1
other 0.1% 269 B 1
Total 261 kB 5

Third parties 2 entities

Entity Transfer Size Main thread Simulated
tailwindcss.com script 127 kB 31 ms
Google Fonts 801 B 0 ms
Total 128 kB 31 ms

Page health

Metric Value Change / range Trend
Main Thread Work 712 ms ↓ -80 ms (-10.1%) significant 712 ms – 891 ms
Long Tasks 4 → no change 4 – 4
DOM Elements 155 ↓ -1 (-0.6%) 154 – 156
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 76 ↑ +1 (+1.3%) 75 – 79
A11y Failures 2 ↑ +1 (+100%) significant 1 – 2
A11y Failing Nodes 74 ↑ +1 (+1.4%) 73 – 74

Main thread work

Task Time Share Duration Simulated
script evaluation 57% 408 ms
style layout 26% 183 ms
other 10% 69 ms
script parse compile 5% 34 ms
parse HTML 1% 8 ms
paint composite render 1% 6 ms
garbage collection 1% 5 ms
Total 712 ms

Axe violations axe-core 4.13.0, full rule set

76 violating nodes across 3 rules, 360 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 73 nodes
    Offending elements (5 of 73)
    1. .mt-12:nth-child(3) > .mt-3 > .text-gray-300:nth-child(1) 
      <h3 class="text-gray-300 text-lg">動物として強ければ細かいことは気にならない？</h3>
    2. .mt-12:nth-child(3) > .mt-3 > .text-gray-300:nth-child(2) 
      <h3 class="text-gray-300 text-lg">ラヴィーニャ</h3>
    3. .mt-12:nth-child(3) > .mt-3 > .text-gray-300:nth-child(3) 
      <h3 class="text-gray-300 text-lg">ジムに行き始めた</h3>
    4. .mt-12:nth-child(3) > .mt-3 > .text-gray-300:nth-child(4) 
      <h3 class="text-gray-300 text-lg">動物として強ければ細かいことは気にならない!</h3>
    5. .mt-12:nth-child(3) > .mt-3 > .text-gray-300:nth-child(5) 
      <h3 class="text-gray-300 text-lg">小籠包と2秒間のアイコンタクト</h3>
  • moderate region — All page content should be contained by landmarks 2 nodes
    Offending elements
    1. #title-mobile 
      <div id="title-mobile" class="md:hidden relative w-full h-screen">
    2. .max-w-4xl 
      <div class="max-w-4xl mx-auto px-4 pt-40 pb-12">
  • moderate heading-order — Heading levels should only increase by one 1 node
    Offending element
    1. a[href$="about"] > .font-normal 
      <h3 class="font-normal">この物語のこと</h3>

Accessibility failures 2 of 19 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 73 nodes
  • heading-order — Heading elements are not in a sequentially-descending order 1 node

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 5, 2026, 11:55 PM UTC 94 2.72 s 0 0 ms 261 kB 3/3 ±1 2,499 +1% 22.1s Wayback
Sep 28, 2026, 6:34 PM UTC 93 2.75 s 0 0 ms 261 kB 3/3 ±3 2,497 0% 24s Wayback
Sep 21, 2026, 2:58 PM UTC 94 2.73 s 0 0 ms 261 kB 3/3 ±0 2,490 0% 22.1s Wayback
Sep 14, 2026, 11:59 AM UTC 94 2.72 s 0 0 ms 261 kB 3/3 ±1 2,480 0% 22.5s Wayback
Sep 7, 2026, 9:03 AM UTC 93 2.74 s 0 0 ms 261 kB 3/3 ±2 2,356 -5% 22.7s Wayback
Aug 31, 2026, 3:58 AM UTC 93 2.74 s 0 0 ms 261 kB 3/3 ±0 2,437 -2% 22.7s Wayback
Aug 21, 2026, 2:34 PM UTC 93 2.78 s 0 0 ms 261 kB 3/3 ±0 2,325 -6% 25.2s Wayback

Embed this score

Use this web component to show readhostel.com's scores on any website, updated whenever this instance re-measures. Don’t forget to bundle the speedlify2-score.js component code into your site! 

<speedlify2-score speedlify-url="https://www.speedlify.dev/" url="https://www.readhostel.com/"></speedlify2-score>