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

netlify.com

https://www.netlify.com/

62PERF 97A11Y 77BEST 92SEO !AXE !CWV

Ranks Overall #1,120 Astro Showcase #103 11ty Emeritus Developer Tooling #34 Web Hosts #5

Data from Oct 6, 2026, 11:07 PM UTC old Measured every 2 days · 24 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 4,279, 72% 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

Astro 5.18.2 Built with Astro 5.18.2
Uses ReactReactPreactPreact
Netlify Hosted by Netlify

Filmstrip LAB Throttled

How the page drew during the measured load, at 8 points across 10.26 s. Compare this filmstrip against another site.

  1. 1.28 s
  2. 1.65 s
  3. 3.85 s
  4. 5.13 s
  5. 6.41 s
  6. 7.69 s
  7. 8.97 s
  8. 10.26 s

Lighthouse Scores LAB Simulated

62
Performance
↑ +9 (+17%)
97
Accessibility
no change
77
Best Practices
no change
92
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 4.38 s poor ↓ -10 ms (-0.2%) 4.06 s – 5.03 s 2.02 s good 81.9% 9.7% 8.4%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — 328 ms needs work 52.7% 35.7% 11.5%
CLS CWV Cumulative Layout Shift 0.044 good ↑ +0.043 (+4300%) significant 0.001 – 0.046 0 good 94.4% 5.3% 0.3%
TBT Total Blocking Time 681 ms poor ↓ -954 ms (-58.3%) significant 681 ms – 2.40 s n/a —
FCP First Contentful Paint 2.88 s needs work ↑ +235 ms (+8.9%) 2.42 s – 3.34 s 1.85 s needs work 74.4% 13.9% 11.7%
Speed Index 3.90 s needs work ↑ +171 ms (+4.6%) 3.44 s – 4.25 s n/a —
TTFB Time to First Byte 625 ms good ↓ -9 ms (-1.4%) 604 ms – 646 ms 802 ms needs work 75% 16.8% 8.3%

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.

element render delay 1.15 s
time to first byte 596 ms

LCP LAB Simulated vs LCP FIELD

Lab 4.38 s
Field p75 2.02 s

The lab LCP is 2.17× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 2.60 MB ↑ +1.6 kB (+0.1%) 2.53 MB – 2.64 MB
Requests 141 ↓ -4 (-2.8%) 131 – 145
Third-party Weight 1.64 MB ↓ -1.0 kB (-0.1%) 1.57 MB – 1.65 MB
Third-party CPU 486 ms ↓ -332 ms (-40.6%) significant 486 ms – 869 ms
Unused JS 949 kB ↑ +317 B 899 kB – 967 kB
Unused CSS 16.7 kB → no change 16.7 kB – 16.7 kB

By resource type

Type Transfer Share Size Requests
script 68.4% 1.78 MB 56
font 8.2% 215 kB 7
image 8% 208 kB 22
document 6.6% 171 kB 4
other 5.7% 149 kB 37
stylesheet 3.1% 80.5 kB 11
Total 2.60 MB 141

Third parties 11 entities

Entity Transfer Size Main thread Simulated
Google Tag Manager script 721 kB 223 ms
Google CDN script 356 kB 133 ms
Hubspot script 311 kB 68 ms
Optanon script 193 kB 46 ms
Segment 49.4 kB 14 ms
All 11 1.64 MB 486 ms

Without JavaScript

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

Scripts disabled
As rendered

39.2% of pixels differ — parts of the page change. 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 5.75 s ↓ -3398 ms (-37.2%) significant 5.75 s – 9.85 s
Long Tasks 20 → no change 20 – 20
DOM Elements 2,444 → no change 2,435 – 2,444
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 1 → no change 1 – 1
A11y Failures 2 → no change 2 – 2
A11y Failing Nodes 3 → no change 3 – 3

Main thread work

Task Time Share Duration Simulated
script evaluation 52% 2.98 s
other 20% 1.15 s
style layout 12% 706 ms
script parse compile 7% 410 ms
paint composite render 6% 319 ms
garbage collection 2% 91 ms
parse HTML 2% 89 ms
Total 5.75 s

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 1700 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Accessibility failures 2 of 35 audits

  • label-content-name-mismatch — Elements with visible text labels do not have matching accessible names. 2 nodes
  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 1 node

Best Practices failures 2 of 19 audits

  • third-party-cookies — Uses third-party cookies 9 items
  • inspector-issues — Issues were logged in the `Issues` panel in Chrome Devtools 1 item

SEO failures 1 of 10 audits

  • link-text — Links do not have descriptive text 1 item

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
2026-10-03 2.01 s 327 ms 0 1.84 s 790 ms
2026-09-26 1.98 s 324 ms 0 1.78 s 751 ms
2026-09-19 1.99 s 323 ms 0 1.77 s 755 ms
2026-09-12 2.01 s 322 ms 0 1.77 s 759 ms
2026-09-05 2.03 s 317 ms 0 1.80 s 767 ms
2026-08-29 2.06 s 310 ms 0 1.84 s 776 ms
2026-08-22 2.09 s 298 ms 0 1.87 s 793 ms
2026-08-15 2.12 s 290 ms 0 1.89 s 808 ms
2026-08-08 2.13 s 283 ms 0 1.89 s 818 ms
2026-08-01 2.13 s 275 ms 0 1.88 s 823 ms
2026-07-25 2.11 s 274 ms 0 1.86 s 817 ms
2026-07-18 2.10 s 268 ms 0 1.85 s 816 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 6, 2026, 11:07 PM UTC 62 4.38 s 0.044 681 ms 2.60 MB 3/3 ±3 4,279 +72% 79.8s Wayback
Oct 3, 2026, 8:55 PM UTC 53 4.38 s 0.001 1.64 s 2.60 MB 3/3 ±4 2,471 -1% 96.8s Wayback
Oct 1, 2026, 2:12 PM UTC 52 4.23 s 0.001 1.64 s 2.60 MB 3/3 ±18 2,468 -1% 98.7s Wayback
Sep 29, 2026, 11:08 AM UTC 52 4.22 s 0.001 1.56 s 2.61 MB 3/3 ±5 2,506 +1% 95.8s Wayback
Sep 25, 2026, 12:47 AM UTC 53 4.07 s 0.002 2.29 s 2.61 MB 3/3 ±3 2,477 0% 96.3s Wayback
Sep 23, 2026, 12:16 AM UTC 59 4.16 s 0.044 1.03 s 2.63 MB 3/3 ±9 3,004 +21% 87.2s Wayback
Sep 20, 2026, 11:18 PM UTC 54 4.21 s 0.006 1.79 s 2.61 MB 3/3 ±4 2,421 -3% 98.9s Wayback
Sep 18, 2026, 1:46 PM UTC 57 4.06 s 0.001 992 ms 2.62 MB 3/3 ±5 2,940 +18% 87.6s Wayback
Sep 16, 2026, 9:26 AM UTC 61 4.09 s 0.046 856 ms 2.61 MB 3/3 ±13 4,050 +63% 85.3s Wayback
Sep 14, 2026, 6:12 AM UTC 56 4.25 s 0.004 1.00 s 2.64 MB 3/3 ±1 3,002 +21% 85.2s Wayback
Sep 11, 2026, 11:23 PM UTC 53 4.22 s 0.004 1.50 s 2.62 MB 3/3 ±4 2,311 -7% 96.1s Wayback
Sep 9, 2026, 8:52 PM UTC 61 4.09 s 0.040 936 ms 2.60 MB 3/3 ±4 3,337 +34% 45.1s Wayback
Sep 7, 2026, 7:32 PM UTC 55 4.10 s 0.030 1.77 s 2.62 MB 3/3 ±5 2,492 0% 51.5s Wayback
Sep 5, 2026, 3:33 AM UTC 55 4.09 s 0.029 1.35 s 2.59 MB 3/3 ±9 2,647 +6% 50.8s Wayback
Sep 4, 2026, 12:59 AM UTC 52 4.22 s 0.001 1.52 s 2.58 MB 3/3 ±7 2,244 -10% 50.5s Wayback
Sep 2, 2026, 11:11 PM UTC 49 5.03 s 0.030 1.67 s 2.60 MB 3/3 ±23 2,157 -13% 51.9s Wayback
Sep 1, 2026, 8:56 PM UTC 55 4.10 s 0.030 1.75 s 2.62 MB 3/3 ±4 2,478 0% 53.4s Wayback
Aug 31, 2026, 6:29 PM UTC 54 4.09 s 0.029 1.68 s 2.59 MB 3/3 ±2 2,471 -1% 52.9s Wayback
Aug 26, 2026, 4:22 PM UTC 53 4.08 s 0.001 1.80 s 2.55 MB 3/3 ±9 2,428 -2% 53.2s Wayback
Aug 25, 2026, 2:49 PM UTC 56 4.09 s 0.030 1.54 s 2.54 MB 3/3 ±7 2,496 0% 55.4s Wayback
Aug 24, 2026, 2:41 PM UTC 56 4.09 s 0.029 1.58 s 2.55 MB 3/3 ±4 2,493 0% 51.9s Wayback
Aug 23, 2026, 2:21 PM UTC 51 4.36 s 0.001 1.68 s 2.53 MB 3/3 ±17 2,451 -1% 53.5s Wayback
Aug 22, 2026, 2:19 PM UTC 53 4.08 s 0.029 1.76 s 2.56 MB 3/3 ±20 2,299 -8% 53.6s Wayback
Aug 21, 2026, 1:46 PM UTC 53 4.11 s 0.002 2.40 s 2.55 MB 3/3 ±9 2,498 0% 50.1s Wayback