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

vitraggroup.com

https://vitraggroup.com/

79PERF 100A11Y 77BEST 100SEO ✓AXE –CWV

Ranks Overall #878 11ty Emeritus

Data from Oct 5, 2026, 1:41 AM 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

Next.js Built with Next.js
Uses ReactReact
Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

79
Performance
↓ -13 (-14.1%)
100
Accessibility
no change
77
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 3.92 s needs work ↑ +1381 ms (+54.4%) 2.18 s – 3.98 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 381 ms needs work ↑ +103 ms (+37.1%) 278 ms – 665 ms
FCP First Contentful Paint 920 ms good ↓ -6 ms (-0.6%) 909 ms – 1.13 s
Speed Index 1.75 s good ↑ +155 ms (+9.7%) 1.44 s – 2.54 s
TTFB Time to First Byte 620 ms good ↓ -6 ms (-1%) 609 ms – 724 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 117 ms
time to first byte 23 ms
resource load duration 22 ms
resource load delay 9 ms

Page weight

Metric Value Change / range Trend
Page Weight 1.12 MB ↑ +2.2 kB (+0.2%) 1.12 MB – 1.16 MB
Requests 45 → no change 44 – 51
Third-party Weight 735 kB ↑ +3.0 kB (+0.4%) 729 kB – 754 kB
Third-party CPU 133 ms ↑ +35 ms (+35.2%) 99 ms – 203 ms
Unused JS 193 kB ↑ +1.3 kB (+0.7%) 191 kB – 228 kB
Unused CSS 0 B → no change 0 B – 0 B

By resource type

Type Transfer Share Size Requests
script 55.5% 623 kB 19
image 37.9% 426 kB 13
font 2.6% 28.9 kB 1
other 2% 22.9 kB 9
document 1.1% 12.8 kB 1
stylesheet 0.8% 9.4 kB 1
Total 1.12 MB 45

Third parties 5 entities

Entity Transfer Size Main thread Simulated
sanity.io image 366 kB 0 ms
Google Tag Manager script 334 kB 108 ms
Clarity 27.2 kB 24 ms
gaconnector.com 7.0 kB 1 ms
Sentry 74 B 0 ms
Total 735 kB 133 ms

Page health

Metric Value Change / range Trend
Main Thread Work 1.91 s ↑ +376 ms (+24.5%) 1.53 s – 2.40 s
Long Tasks 9 ↑ +4 (+80%) significant 5 – 9
DOM Elements 314 → no change 314 – 320
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 → no change 0 – 0
A11y Failures 0 → no change 0 – 0
A11y Failing Nodes 0 → no change 0 – 0

Main thread work

Task Time Share Duration Simulated
script evaluation 59% 1.13 s
other 19% 364 ms
script parse compile 11% 209 ms
style layout 7% 130 ms
garbage collection 2% 31 ms
parse HTML 1% 26 ms
paint composite render 1% 22 ms
Total 1.91 s

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 545 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Best Practices failures 2 of 18 audits

  • third-party-cookies — Uses third-party cookies 5 items
  • inspector-issues — Issues were logged in the `Issues` panel in Chrome Devtools 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
2026-04-11 → 2026-09-26 No data — 25 weeks under the CrUX reporting threshold

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 5, 2026, 1:41 AM UTC 79 3.92 s 0 381 ms 1.12 MB 3/3 ±7 2,628 +6% 32.9s Wayback
Sep 27, 2026, 11:44 PM UTC 92 2.54 s 0 278 ms 1.12 MB 3/3 ±32 3,126 +26% 27.6s Wayback
Sep 20, 2026, 8:45 PM UTC 86 2.18 s 0 484 ms 1.13 MB 3/3 ±28 2,465 -1% 31.4s Wayback
Sep 13, 2026, 8:26 PM UTC 76 3.98 s 0 459 ms 1.16 MB 3/3 ±21 2,455 -1% 30.7s Wayback
Sep 6, 2026, 6:54 PM UTC 85 2.69 s 0 461 ms 1.15 MB 3/3 ±16 2,353 -5% 29.8s Wayback
Aug 30, 2026, 5:59 PM UTC 75 3.38 s 0 665 ms 1.16 MB 3/3 ±22 2,351 -5% 30.9s Wayback
Aug 21, 2026, 8:45 AM UTC 85 3.12 s 0 375 ms 1.16 MB 3/3 ±39 2,824 +14% 30.7s Wayback