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

fly.io

https://fly.io/

85PERF 100A11Y 77BEST 100SEO !AXE !CWV

Ranks Overall #1,114 Developer Tooling #33 Web Hosts #4

Data from Oct 6, 2026, 11:04 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

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

Stack

Fly.io Hosted by Fly.io

Filmstrip LAB Throttled

How the page drew during the measured load, at 8 points across 4.94 s. Compare this filmstrip against another site.

  1. 618 ms
  2. 1.24 s
  3. 1.85 s
  4. 2.47 s
  5. 3.09 s
  6. 3.12 s
  7. 4.32 s
  8. 4.94 s

Lighthouse Scores LAB Simulated

85
Performance
↑ +19 (+28.8%)
100
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 (2026-09-07 → 2026-10-04), url-level.

Metric Lab Simulated Field
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 3.39 s needs work ↓ -3794 ms (-52.8%) significant 3.39 s – 13.33 s 2.72 s needs work 70.1% 19.2% 10.7%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — 127 ms good 86.6% 12% 1.4%
CLS CWV Cumulative Layout Shift 0 good → no change 0 – 0 0 good 99.5% 0.5% 0.1%
TBT Total Blocking Time 238 ms needs work ↓ -58 ms (-19.6%) 238 ms – 1.20 s n/a —
FCP First Contentful Paint 2.04 s needs work ↑ +13 ms (+0.6%) 1.51 s – 2.04 s 2.22 s needs work 62.8% 25.1% 12.2%
Speed Index 3.02 s good ↓ -1253 ms (-29.3%) significant 1.51 s – 4.39 s n/a —
TTFB Time to First Byte 646 ms good ↓ -24 ms (-3.6%) 604 ms – 696 ms 781 ms good 75.8% 17.7% 6.6%

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 1.40 s
element render delay 963 ms
time to first byte 623 ms
resource load delay 127 ms

LCP LAB Simulated vs LCP FIELD

Lab 3.39 s
Field p75 2.72 s

The lab LCP is 1.25× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 2.37 MB ↓ -469.3 kB (-16.9%) significant 1.93 MB – 3.00 MB
Requests 37 ↓ -6 (-14%) significant 31 – 44
Third-party Weight 272 kB ↓ -39 B 244 kB – 287 kB
Third-party CPU 40 ms ↓ -7 ms (-15.2%) 32 ms – 69 ms
Unused JS 457 kB ↑ +1.5 kB (+0.3%) 443 kB – 763 kB
Unused CSS 116 kB ↓ -693 B (-0.6%) 98.9 kB – 116 kB

By resource type

Type Transfer Share Size Requests
script 43.8% 1.04 MB 8
image 42.3% 1.00 MB 12
font 7.3% 173 kB 2
stylesheet 5.1% 120 kB 1
document 1.2% 28.7 kB 4
other 0.3% 8.0 kB 8
Total 2.37 MB 37

Third parties 1 entities

Entity Transfer Size Main thread Simulated
Stripe script 272 kB 40 ms
Total 272 kB 40 ms

Without JavaScript

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

Scripts disabled
As rendered

0% of pixels differ — they are identical. 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 2.04 s ↑ +372 ms (+22.2%) 950 ms – 3.43 s
Long Tasks 7 → no change 5 – 14
DOM Elements 463 → no change 425 – 465
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 51% 1.04 s
script evaluation 28% 571 ms
script parse compile 10% 203 ms
style layout 6% 130 ms
garbage collection 2% 47 ms
parse HTML 2% 36 ms
paint composite render 1% 19 ms
Total 2.04 s

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 630 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • serious scrollable-region-focusable — Scrollable region must have keyboard access 1 node
    Offending element
    1. #machines-rail 
      <div id="machines-rail" class="mt-10 flex snap-x snap-mandatory overflow-x-auto overscroll-x-contain lg:mt-16 [scrollbar-width:none] [&::-webkit-scrollbar]:hidden">

Best Practices failures 3 of 18 audits

  • third-party-cookies — Uses third-party cookies 1 item
  • 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 2 items

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache http/1.1

Measurement log

Field history 25 weeks

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

Week ending LCPINPCLSFCPTTFB
2026-10-03 2.72 s 129 ms 0 2.22 s 782 ms
2026-09-26 2.64 s 148 ms 0 2.18 s 792 ms
2026-09-19 2.66 s 166 ms 0 2.23 s 839 ms
2026-09-12 2.58 s 165 ms 0 2.17 s 863 ms
2026-09-05 2.56 s 153 ms 0 2.16 s 847 ms
2026-08-29 2.58 s 138 ms 0 2.14 s 839 ms
2026-08-22 2.55 s 136 ms 0 2.10 s 825 ms
2026-08-15 2.59 s 139 ms 0 2.14 s 853 ms
2026-08-08 2.69 s 149 ms 0 2.19 s 871 ms
2026-08-01 2.81 s 161 ms 0 2.25 s 890 ms
2026-07-25 2.90 s 162 ms 0 2.25 s 879 ms
2026-07-18 2.92 s 165 ms 0 2.23 s 832 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 6, 2026, 11:04 PM UTC 85 3.39 s 0 238 ms 2.37 MB 3/3 ±2 3,347 +35% 73.1s Wayback
Oct 3, 2026, 8:48 PM UTC 66 7.19 s 0 296 ms 2.85 MB 3/3 ±8 3,071 +24% 78.8s Wayback
Oct 1, 2026, 6:57 AM UTC 60 11.62 s 0 469 ms 2.83 MB 3/3 ±6 2,320 -7% 84.6s Wayback
Sep 29, 2026, 4:58 AM UTC 62 10.10 s 0 411 ms 2.89 MB 3/3 ±8 2,370 -5% 84s Wayback
Sep 25, 2026, 5:59 AM UTC 59 10.27 s 0 548 ms 2.88 MB 3/3 ±6 2,491 0% 82.5s Wayback
Sep 23, 2026, 5:49 AM UTC 60 10.14 s 0 517 ms 2.36 MB 3/3 ±6 2,492 0% 76s Wayback
Sep 21, 2026, 1:15 AM UTC 63 7.00 s 0 518 ms 2.02 MB 3/3 ±6 2,436 -2% 74s Wayback
Sep 18, 2026, 1:37 PM UTC 56 9.05 s 0 716 ms 1.93 MB 3/3 ±2 2,222 -11% 75.8s Wayback
Sep 16, 2026, 9:11 AM UTC 71 6.89 s 0 264 ms 1.93 MB 3/3 ±7 4,457 +79% 64.2s Wayback
Sep 14, 2026, 5:53 AM UTC 53 6.47 s 0 1.20 s 2.20 MB 3/3 ±1 2,491 0% 95s Wayback
Sep 11, 2026, 11:12 PM UTC 54 6.47 s 0 1.03 s 2.40 MB 3/3 ±6 2,463 -1% 84.9s Wayback
Sep 9, 2026, 8:38 PM UTC 60 9.32 s 0 559 ms 2.19 MB 3/3 ±6 3,365 +35% 43.3s Wayback
Sep 7, 2026, 7:15 PM UTC 55 6.71 s 0 910 ms 2.19 MB 3/3 ±3 2,491 0% 46.8s Wayback
Sep 5, 2026, 8:04 AM UTC 59 9.38 s 0 577 ms 2.99 MB 3/3 ±11 2,339 -6% 46.7s Wayback
Sep 4, 2026, 12:58 AM UTC 59 13.33 s 0 525 ms 3.00 MB 3/3 ±4 2,940 +18% 49.3s Wayback
Sep 2, 2026, 11:08 PM UTC 60 8.97 s 0 573 ms 2.79 MB 3/3 ±5 2,330 -6% 37.7s Wayback
Sep 1, 2026, 8:51 PM UTC 62 12.16 s 0 502 ms 2.98 MB 3/3 ±6 3,101 +25% 36.5s Wayback
Aug 31, 2026, 6:06 PM UTC 59 13.25 s 0 536 ms 2.79 MB 3/3 ±2 2,339 -6% 46.1s Wayback
Aug 27, 2026, 2:30 PM UTC 54 12.52 s 0 904 ms 2.79 MB 3/3 ±2 2,468 -1% 37.6s Wayback
Aug 26, 2026, 4:38 AM UTC 58 7.70 s 0 707 ms 2.45 MB 3/3 ±14 2,915 +17% 45.3s Wayback
Aug 25, 2026, 3:53 AM UTC 57 6.63 s 0 805 ms 2.45 MB 3/3 ±10 2,505 +1% 37.3s Wayback
Aug 24, 2026, 3:02 AM UTC 55 6.65 s 0 996 ms 2.45 MB 3/3 ±13 2,491 0% 52.1s Wayback
Aug 23, 2026, 1:15 AM UTC 54 9.29 s 0 851 ms 2.28 MB 3/3 ±10 2,506 +1% 43.7s Wayback
Aug 21, 2026, 11:22 PM UTC 55 9.42 s 0 824 ms 2.45 MB 3/3 ±1 2,377 -4% 35.5s Wayback
Aug 20, 2026, 10:36 PM UTC 58 9.27 s 0 667 ms 2.49 MB 3/3 ±2 2,698 +9% 38.9s Wayback