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

speedlify.dev

https://www.speedlify.dev/

95PERF 100A11Y 100BEST 100SEO ✓AXE –CWV

Ranks Overall #353 Built Awesome #275 Developer Tooling #2 zachleat #12

Data from Oct 6, 2026, 11:11 PM UTC old Measured every 2 days · 22 runs since Aug 21, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Tame the Bots · Scoring Calculator · Wayback Machine

The measuring machine was faster than most in this project.

Lighthouse benchmark index was 4,048, 63% faster than this project's median of 2,486. CPU-bound metrics — TBT, TTI, main thread work — are affected by this and may have moved without the site changing at all.

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

Stack

Build Awesome 4.0.0 Built with Build Awesome 4.0.0
Uses Font AwesomeFont Awesome
GitHub Pages Hosted by GitHub Pages

Filmstrip LAB Throttled

How the page drew during the measured load, at 8 points across 3.00 s. Compare this filmstrip against another site.

  1. 375 ms
  2. 680 ms
  3. 1.13 s
  4. 1.50 s
  5. 1.88 s
  6. 2.25 s
  7. 2.63 s
  8. 3.00 s

Lighthouse Scores LAB Simulated

95
Performance
↑ +5 (+5.6%)
100
Accessibility
no change
100
Best Practices
no change
100
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 2.16 s good ↓ -76 ms (-3.4%) 793 ms – 2.35 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 213 ms needs work ↓ -125 ms (-37%) significant 0 ms – 395 ms
FCP First Contentful Paint 1.54 s good ↓ -15 ms (-1%) 793 ms – 1.63 s
Speed Index 1.54 s good ↓ -15 ms (-1%) 793 ms – 1.63 s
TTFB Time to First Byte 609 ms good ↓ -11 ms (-1.8%) 602 ms – 695 ms

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.

time to first byte 680 ms

Page weight

Metric Value Change / range Trend
Page Weight 312 kB ↑ +51.3 kB (+20.2%) significant 50.4 kB – 337 kB
Requests 44 → no change 4 – 44
Third-party Weight 113 kB ↓ -7.2 kB (-6.1%) 0 B – 121 kB
Third-party CPU 2 ms ↓ -0 ms (-14.3%) significant 0 ms – 3 ms
Unused JS 0 B → no change 0 B – 21.3 kB
Unused CSS 0 B → no change 0 B – 12.2 kB

By resource type

Type Transfer Share Size Requests
image 59.9% 187 kB 38
document 37.2% 116 kB 1
script 2.8% 8.6 kB 3
other 0.1% 382 B 1
Total 312 kB 44

Third parties 3 entities

Entity Transfer Size Main thread Simulated
11ty.dev image 108 kB 0 ms
zgo.at 4.5 kB 2 ms
goatcounter.com 382 B 0 ms
Total 113 kB 2 ms

Without JavaScript

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

Scripts disabled
As rendered

1.4% of pixels differ — they are nearly 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 1.57 s ↓ -770 ms (-33%) significant 121 ms – 2.56 s
Long Tasks 6 ↓ -6 (-50%) significant 0 – 13
DOM Elements 15,410 ↓ -408 (-2.6%) 64 – 15,818
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 → no change 0 – 0
A11y Failures 1 → no change 0 – 1
A11y Failing Nodes 2 → no change 0 – 10

Main thread work

Task Time Share Duration Simulated
style layout 36% 564 ms
paint composite render 27% 428 ms
other 24% 382 ms
parse HTML 8% 133 ms
script evaluation 3% 49 ms
garbage collection 0% 7 ms
script parse compile 0% 3 ms
Total 1.57 s

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 37688 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Accessibility failures 1 of 31 audits

  • label-content-name-mismatch — Elements with visible text labels do not have matching accessible names. 2 nodes

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 6, 2026, 11:11 PM UTC 95 2.16 s 0 213 ms 312 kB 3/3 ±1 4,048 +63% 76.1s Wayback
Oct 3, 2026, 9:00 PM UTC 90 2.23 s 0 338 ms 260 kB 3/3 ±3 2,486 0% 109.5s Wayback
Oct 1, 2026, 2:17 PM UTC 91 2.19 s 0 311 ms 286 kB 3/3 ±8 2,442 -2% 101.3s Wayback
Sep 29, 2026, 11:13 AM UTC 92 2.21 s 0 286 ms 300 kB 3/3 ±6 2,513 +1% 100.8s Wayback
Sep 25, 2026, 5:53 AM UTC 90 1.60 s 0 395 ms 265 kB 3/3 ±2 2,474 0% 99.1s Wayback
Sep 23, 2026, 12:21 AM UTC 93 1.61 s 0 288 ms 298 kB 3/3 ±2 2,980 +20% 87.3s Wayback
Sep 20, 2026, 11:23 PM UTC 92 2.19 s 0 303 ms 337 kB 3/3 ±3 2,487 0% 102.4s Wayback
Sep 18, 2026, 1:51 PM UTC 93 2.16 s 0 259 ms 272 kB 3/3 ±2 2,974 +20% 83s Wayback
Sep 16, 2026, 9:31 AM UTC 94 2.18 s 0 227 ms 303 kB 3/3 ±5 3,817 +54% 79.4s Wayback
Sep 14, 2026, 6:16 AM UTC 94 2.31 s 0 210 ms 284 kB 3/3 ±2 3,044 +22% 79.4s Wayback
Sep 11, 2026, 11:28 PM UTC 92 2.35 s 0 279 ms 308 kB 3/3 ±4 2,331 -6% 93.1s Wayback
Sep 9, 2026, 8:55 PM UTC 99 1.59 s 0 57 ms 318 kB 3/3 ±11 3,373 +36% 53.6s Wayback
Sep 7, 2026, 7:35 PM UTC 95 1.54 s 0 243 ms 312 kB 3/3 ±2 2,481 0% 67.5s Wayback
Sep 5, 2026, 12:29 PM UTC 98 1.52 s 0 161 ms 290 kB 3/3 ±1 3,057 +23% 50.1s Wayback
Sep 4, 2026, 1:02 AM UTC 97 1.51 s 0 179 ms 259 kB 3/3 ±0 2,320 -7% 58.5s Wayback
Sep 2, 2026, 11:14 PM UTC 94 1.52 s 0 281 ms 259 kB 3/3 ±1 2,266 -9% 60.8s Wayback
Sep 1, 2026, 10:44 PM UTC 95 1.53 s 0 254 ms 286 kB 3/3 ±2 2,390 -4% 61.7s Wayback
Aug 31, 2026, 9:01 PM UTC 97 1.52 s 0 168 ms 258 kB 3/3 ±1 2,423 -3% 56.2s Wayback
→ Generator changed from Eleventy to Build Awesome first seen this measurement
Aug 27, 2026, 2:29 PM UTC 97 1.35 s 0 195 ms 189 kB 3/3 ±10 2,370 -5% 59.7s Wayback
Aug 23, 2026, 7:21 PM UTC 97 1.28 s 0 189 ms 181 kB 3/3 ±7 2,386 -4% 58.5s Wayback
Aug 23, 2026, 5:19 PM UTC 99 1.28 s 0 120 ms 183 kB 3/3 ±7 2,486 0% 56.3s Wayback
Aug 21, 2026, 1:55 PM UTC 100 793 ms 0 0 ms 50.4 kB 3/3 ±0 2,502 +1% 21.8s Wayback

Embed this score

Use this web component to show speedlify.dev'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.speedlify.dev/"></speedlify2-score>