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

railway.com

https://railway.com/

26PERF 96A11Y 77BEST 100SEO !AXE ✗CWV

Ranks Overall #1,747 Developer Tooling #88 Web Hosts #19

Data from Oct 7, 2026, 5:30 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

Uses ReactReactLit 2.8.0Lit 2.8.0
Railway Hosted by Railway

Filmstrip LAB Throttled

How the page drew during the measured load, at 9 points across 13.78 s. Compare this filmstrip against another site.

  1. 1.72 s
  2. 3.45 s
  3. 5.17 s
  4. 6.89 s
  5. 8.62 s
  6. 10.34 s
  7. 10.73 s
  8. 12.52 s
  9. 13.78 s

Lighthouse Scores LAB Simulated

26
Performance
↓ -2 (-7.1%)
96
Accessibility
no change
77
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 (2026-09-08 → 2026-10-05), url-level.

Metric Lab Simulated Field
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 17.40 s poor ↓ -1408 ms (-7.5%) 4.53 s – 24.19 s 2.56 s needs work 74.1% 14.6% 11.3%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — 633 ms poor 38.8% 28.5% 32.7%
CLS CWV Cumulative Layout Shift 0.040 good → no change 0 – 0.467 0.120 needs work 72.6% 11.1% 16.4%
TBT Total Blocking Time 2.61 s poor ↑ +917 ms (+54%) 1.32 s – 12.17 s n/a —
FCP First Contentful Paint 14.70 s poor ↓ -60 ms (-0.4%) 2.02 s – 15.63 s 2.14 s needs work 66.6% 19.5% 14%
Speed Index 14.70 s poor ↓ -60 ms (-0.4%) 3.83 s – 15.63 s n/a —
TTFB Time to First Byte 658 ms good ↑ +4 ms (+0.6%) 616 ms – 690 ms 816 ms needs work 74.6% 17.9% 7.6%

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 11.70 s
time to first byte 567 ms
resource load delay 211 ms
element render delay 40 ms

LCP LAB Simulated vs LCP FIELD

Lab 17.40 s
Field p75 2.56 s

The lab LCP is 6.8× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 4.41 MB ↑ +61.6 kB (+1.4%) 3.57 MB – 4.56 MB
Requests 366 ↑ +8 (+2.2%) 283 – 388
Third-party Weight 491 kB ↑ +59.2 kB (+14.1%) significant 423 kB – 491 kB
Third-party CPU 372 ms ↑ +50 ms (+15.4%) 146 ms – 432 ms
Unused JS 1.48 MB ↓ -62.9 kB (-4.2%) 959 kB – 1.54 MB
Unused CSS 58.2 kB ↑ +26 B 51.3 kB – 58.2 kB

By resource type

Type Transfer Share Size Requests
script 75% 3.30 MB 276
image 17.7% 780 kB 51
font 4.2% 185 kB 6
stylesheet 1.6% 69.5 kB 8
document 1.3% 55.6 kB 2
other 0.3% 13.4 kB 21
Total 4.41 MB 366

Third parties 10 entities

Entity Transfer Size Main thread Simulated
Google Fonts font 188 kB 0 ms
Google Tag Manager script 159 kB 83 ms
Osano CMP script 75.3 kB 262 ms
IPONWEB script 56.6 kB 25 ms
Fathom Analytics 3.2 kB 1 ms
All 10 491 kB 372 ms

Without JavaScript

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

Scripts disabled
As rendered

81.1% 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 11.91 s ↑ +1877 ms (+18.7%) 8.34 s – 39.67 s
Long Tasks 20 → no change 20 – 20
DOM Elements 8,383 → no change 8,380 – 8,386
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 2 → no change 2 – 65
A11y Failures 1 → no change 1 – 2
A11y Failing Nodes 3 → no change 3 – 4

Main thread work

Task Time Share Duration Simulated
script evaluation 53% 6.34 s
other 24% 2.89 s
style layout 14% 1.71 s
garbage collection 3% 343 ms
paint composite render 2% 257 ms
script parse compile 2% 201 ms
parse HTML 1% 162 ms
Total 11.91 s

Axe violations axe-core 4.13.0, full rule set

2 violating nodes across 1 rule, 8253 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 2 nodes
    Offending elements
    1. .opacity-40.sm\:flex-row.sm\:items-center > .items-center.flex:nth-child(1) > .leading-6.text-base.font-medium 
      <div class="text-base leading-6 font-medium text-white">Alternative to</div>
    2. .w-\[360px\].h-\[246px\].pt-6:nth-child(7) > .gap-3.items-center.flex > .leading-5.text-sm > .text-white\/50 
      <div class="text-white/50">@thalesgelinger_</div>

Accessibility failures 1 of 25 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 3 nodes

Best Practices failures 3 of 19 audits

  • third-party-cookies — Uses third-party cookies 4 items
  • inspector-issues — Issues were logged in the `Issues` panel in Chrome Devtools 1 item
  • valid-source-maps — Missing source maps for large first-party JavaScript 9 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
2026-09-26 2.21 s 620 ms 0.100 1.87 s 746 ms
2026-09-19 2.12 s 623 ms 0.080 1.79 s 681 ms
2026-09-12 2.09 s 628 ms 0.040 1.75 s 616 ms
2026-09-05 2.05 s 617 ms 0.040 1.72 s 582 ms
2026-08-29 2.04 s 606 ms 0.030 1.72 s 589 ms
2026-08-22 2.04 s 598 ms 0.030 1.72 s 594 ms
2026-08-15 2.04 s 586 ms 0.030 1.72 s 601 ms
2026-08-08 2.06 s 589 ms 0.030 1.74 s 609 ms
2026-08-01 2.12 s 589 ms 0.030 1.77 s 627 ms
2026-07-25 2.15 s 578 ms 0.030 1.80 s 642 ms
2026-07-18 2.18 s 560 ms 0.030 1.82 s 656 ms
2026-07-11 2.21 s 547 ms 0.030 1.84 s 673 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 7, 2026, 5:30 PM UTC 26 17.40 s 0.040 2.61 s 4.41 MB 2/3 ±1 1,904 -23% 148.8s Wayback
Oct 6, 2026, 11:11 PM UTC TRACING_ALREADY_STARTED: An internal Chrome error occurred. Please restart Chrome and try re-running Lighthouse. 118.2s
Oct 3, 2026, 8:43 PM UTC 28 18.80 s 0.040 1.70 s 4.35 MB 3/3 ±1 2,722 +9% 128.9s Wayback
Sep 30, 2026, 1:11 AM UTC 27 24.19 s 0 1.91 s 4.19 MB 3/3 ±1 2,933 +18% 268.9s Wayback
Sep 27, 2026, 12:54 PM UTC 28 17.81 s 0.040 1.61 s 4.29 MB 3/3 ±1 2,489 0% 139.1s Wayback
Sep 25, 2026, 12:35 AM UTC 37 6.05 s 0.040 4.33 s 4.56 MB 3/3 ±24 2,495 0% 276s Wayback
Sep 23, 2026, 12:01 AM UTC 35 6.64 s 0.040 12.17 s 4.32 MB 3/3 ±10 2,980 +20% 265.2s Wayback
Sep 20, 2026, 11:05 PM UTC 43 4.94 s 0.040 4.51 s 4.30 MB 3/3 ±17 2,482 0% 280s Wayback
Sep 18, 2026, 8:54 AM UTC 40 5.49 s 0.040 4.03 s 4.29 MB 3/3 ±23 2,502 +1% 131.5s Wayback
Sep 16, 2026, 3:32 AM UTC 22 5.61 s 0.467 4.99 s 3.85 MB 3/3 ±34 2,487 0% 275.6s Wayback
Sep 14, 2026, 12:45 AM UTC 51 4.53 s 0.040 2.17 s 3.75 MB 3/3 ±5 4,106 +65% 252.3s Wayback
Sep 11, 2026, 8:36 PM UTC 33 7.91 s 0.040 2.87 s 4.05 MB 3/3 ±5 2,474 0% 273.6s Wayback
Sep 9, 2026, 5:36 PM UTC 40 5.98 s 0.040 3.05 s 3.72 MB 3/3 ±13 2,499 +1% 206.9s Wayback
Sep 7, 2026, 2:57 PM UTC 23 5.27 s 0.467 2.64 s 3.70 MB 3/3 ±7 2,335 -6% 66.7s Wayback
Sep 5, 2026, 3:17 AM UTC 43 5.42 s 0.040 2.05 s 3.68 MB 3/3 ±5 2,908 +17% 194.2s Wayback
Sep 4, 2026, 12:57 AM UTC 41 5.74 s 0.040 1.91 s 3.68 MB 3/3 ±21 3,362 +35% 198s Wayback
Sep 2, 2026, 11:04 PM UTC 18 6.49 s 0.467 2.45 s 3.67 MB 3/3 ±24 2,792 +12% 203.1s Wayback
Sep 1, 2026, 8:42 PM UTC 31 18.49 s 0.040 1.32 s 3.67 MB 3/3 ±20 3,506 +41% 188.8s Wayback
Aug 31, 2026, 5:59 PM UTC 38 6.51 s 0 2.79 s 3.66 MB 3/3 ±23 2,305 -7% 72.7s Wayback
Aug 26, 2026, 1:55 PM UTC 38 6.33 s 0.040 3.37 s 3.66 MB 3/3 ±11 2,562 +3% 72.6s Wayback
Aug 25, 2026, 10:32 AM UTC 39 6.32 s 0.040 3.43 s 3.57 MB 3/3 ±14 2,357 -5% 204.8s Wayback
Aug 24, 2026, 7:58 AM UTC 42 5.42 s 0.040 2.74 s 3.60 MB 3/3 ±6 2,303 -7% 204.8s Wayback
Aug 23, 2026, 7:32 AM UTC 42 5.42 s 0.040 3.05 s 3.58 MB 3/3 ±19 2,466 -1% 77.3s Wayback
Aug 22, 2026, 6:38 AM UTC 34 7.55 s 0.040 2.00 s 3.95 MB 3/3 ±14 2,316 -7% 66.2s Wayback
Aug 21, 2026, 5:33 AM UTC 41 6.18 s 0.040 2.99 s 3.58 MB 3/3 ±3 2,349 -6% 67.8s Wayback