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

devolverdigital.com

https://www.devolverdigital.com/

65PERF 84A11Y 100BEST 100SEO AXE CWV

Ranks Overall #1,580 Next.js Showcase #29

Data from Sep 21, 2026, 11:08 PM UTC old Measured once a week · 1 run since Sep 21, 2026

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

The accessibility pass was served a bot check.

This site is loaded several times per measurement, and one of those loads — the accessibility pass — was answered with Vercel Security Checkpoint, an automated-traffic check rather than devolverdigital.com. It was tried twice.

The performance figures below are unaffected: they come from the runs that were served the real page. What is missing is everything that pass produces — the accessibility result, the screenshot and the without-JavaScript comparison — because those would describe the waiting room rather than the site.

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

Stack

Vercel Hosted by Vercel

Lighthouse Scores LAB Simulated

65
Performance
no change
84
Accessibility
no change
100
Best Practices
no change
100
SEO
no change

Metrics LAB FIELD

Core Web Vitals: passing 3 of 3 assessed from real Chrome users.

Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-08-23 → 2026-09-19), url-level.

Metric Lab Simulated Field
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 7.01 s poor 7.01 s – 7.01 s 1.99 s good 85.2% 10% 4.8%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a 112 ms good 92.9% 6.2% 1%
CLS CWV Cumulative Layout Shift 0 good 0 – 0 0 good 98.2% 0.6% 1.2%
TBT Total Blocking Time 434 ms needs work 434 ms – 434 ms n/a
FCP First Contentful Paint 1.38 s good 1.38 s – 1.38 s 1.20 s good 89.2% 6.3% 4.4%
Speed Index 2.35 s good 2.35 s – 2.35 s n/a
TTFB Time to First Byte 633 ms good 633 ms – 633 ms 527 ms good 87.2% 9.1% 3.7%

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 3.97 s
resource load duration 1.83 s
time to first byte 589 ms
resource load delay 12 ms

LCP LAB Simulated vs LCP FIELD

Lab 7.01 s
Field p75 1.99 s

The lab LCP is 3.52× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 1.21 MB 1.21 MB – 1.21 MB
Requests 58 58 – 58
Third-party Weight 81.0 kB 81.0 kB – 81.0 kB
Third-party CPU 65 ms 65 ms – 65 ms
Unused JS 45.2 kB 45.2 kB – 45.2 kB
Unused CSS 0 B 0 B – 0 B

By resource type

Type Transfer Share Size Requests
image 57.8% 670 kB 27
script 26.3% 305 kB 21
document 8.5% 98.5 kB 2
font 5.9% 68.6 kB 2
stylesheet 1.4% 16.1 kB 1
other 0.1% 788 B 3
Total 1.21 MB 58

Third parties 2 entities

Entity Transfer Size Main thread Simulated
Osano CMP script 74.9 kB 65 ms
vercel-storage.com 6.1 kB 0 ms
Total 81.0 kB 65 ms

Page health

Metric Value Change / range Trend
Main Thread Work 7.15 s 7.15 s – 7.15 s
Long Tasks 12 12 – 12
DOM Elements 751 751 – 751
A11y Failures 5 5 – 5
A11y Failing Nodes 12 12 – 12

Main thread work

Task Time Share Duration Simulated
script evaluation 73% 5.24 s
other 13% 920 ms
style layout 5% 336 ms
garbage collection 3% 229 ms
script parse compile 3% 214 ms
paint composite render 2% 122 ms
parse HTML 1% 92 ms
Total 7.15 s

Axe violations axe-core 4.13.0, full rule set

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

Accessibility failures 5 of 25 audits

  • heading-order — Heading elements are not in a sequentially-descending order 4 nodes
  • button-name — Buttons do not have an accessible name 3 nodes
  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 3 nodes
  • link-name — Links do not have a discernible name 1 node
  • landmark-one-main — Document does not have a main landmark. 1 node

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
2026-09-19 1.99 s 112 ms 0 1.20 s 527 ms
2026-09-12 2.01 s 115 ms 0 1.22 s 538 ms
2026-09-05 1.97 s 120 ms 0 1.20 s 547 ms
2026-08-29 1.94 s 116 ms 0 1.16 s 535 ms
2026-08-22 1.96 s 116 ms 0 1.16 s 535 ms
2026-08-15 1.96 s 115 ms 0 1.18 s 535 ms
2026-08-08 1.99 s 113 ms 0 1.17 s 524 ms
2026-08-01 1.97 s 111 ms 0 1.16 s 526 ms
2026-07-25 1.93 s 110 ms 0 1.15 s 525 ms
2026-07-18 1.92 s 112 ms 0 1.15 s 524 ms
2026-07-11 1.98 s 112 ms 0 1.18 s 521 ms
2026-07-04 2.01 s 112 ms 0 1.22 s 510 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Sep 21, 2026, 11:08 PM UTC 65 7.01 s 0 434 ms 1.21 MB 2/3 ±6 2,419 -3% 74.6s Wayback