speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time.

Charts Measurement runs Embed a score

jamstack-comments.netlify.app

https://jamstack-comments.netlify.app/

100 97 100 90 AXE CWV

Ranks Overall #1,112 Built Awesome #855

Data from Sep 5, 2026, 5:57 PM UTC old Measured once a week · 3 runs since Aug 21, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Wayback Machine

Stack

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Lighthouse Scores

100
Performance
no change
97
Accessibility
no change
100
Best Practices
no change
90
SEO
no change

Metrics Lighthouse, mobile Chrome UX Report

Core Web Vitals: passing 2 of 3 assessed from real Chrome users.

Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-08-07 → 2026-09-03), url-level.

Metric Lab Lighthouse Field Chrome UX Report
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 798 ms good ↑ +7 ms (+0.9%) 791 ms – 798 ms 1.47 s good 95.1% 2% 2.8%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a
CLS CWV Cumulative Layout Shift 0 good → no change 0 – 0 0 good 98.6% 1.4% 0%
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms n/a
FCP First Contentful Paint 798 ms good ↑ +7 ms (+0.9%) 791 ms – 798 ms 1.47 s good 89.2% 7.6% 3.2%
Speed Index 798 ms good ↑ +7 ms (+0.9%) 791 ms – 798 ms n/a
TTFB Time to First Byte 629 ms good ↑ +4 ms (+0.6%) 625 ms – 633 ms 1.30 s needs work 51.6% 39.6% 8.8%

LCP Subparts lab observed, unthrottled

The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab LCP shown above is throttled.

element render delay 34 ms
time to first byte 30 ms

Lab LCP vs Field LCP Chrome UX Report

Lab 798 ms
Field p75 1.47 s

The lab LCP is 0.54× the field p75 — real users likely have below-average hardware or network connectivity. A gap this wide usually means real users are on slower devices or networks than the simulated ones — the lab number is flattering you.

Page weight

Metric Value Change / range Trend
Page Weight 2.3 kB ↑ +1 B 2.3 kB – 2.3 kB
Requests 1 → no change 1 – 1
Third-party Weight 0 B → no change 0 B – 0 B
Third-party CPU 0 ms → no change 0 ms – 0 ms
Unused JS 0 B → no change 0 B – 0 B
Unused CSS 0 B → no change 0 B – 0 B

By resource type

  • document 100% 2.3 kB · 1 req

Page health

Metric Value Change / range Trend
Main Thread Work 74 ms ↓ -5 ms (-5.7%) 60 ms – 79 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 33 → no change 33 – 33
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 6 → no change 6 – 6
A11y Failures 1 → no change 1 – 1
A11y Failing Nodes 1 → no change 1 – 1

Main thread work

other 46 ms
style layout 12 ms
script evaluation 9 ms
parse HTML 3 ms
paint composite render 3 ms
script parse compile 1 ms

Axe violations axe-core 4.13.0, full rule set

6 violating nodes across 2 rules, 63 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • moderate region — All page content should be contained by landmarks 5 nodes
  • moderate landmark-one-main — Document should have one main landmark 1 node

Accessibility failures 1 of 13 audits

  • 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
2026-09-05 1.47 s 0 1.47 s 1.30 s
2026-08-29 1.48 s 0 1.49 s 1.31 s
2026-08-22 1.49 s 0 1.53 s 1.33 s
2026-08-15 1.58 s 0 1.59 s 1.42 s
2026-08-08 1.49 s 0 1.55 s 1.41 s
2026-08-01 1.49 s 0 1.49 s 1.33 s
2026-07-25 1.45 s 0 1.45 s 1.27 s
2026-07-18 1.37 s 0 1.37 s 1.27 s
2026-07-11 1.42 s 0 1.43 s 1.32 s
2026-07-04 1.35 s 0 1.35 s 1.25 s
2026-06-27 1.25 s 0 1.25 s 1.15 s
2026-06-20 1.17 s 0 1.18 s 1.10 s

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Sep 5, 2026, 5:57 PM UTC 100 798 ms 0 0 ms 2.3 kB 3/3 ±0 2,498 +1% 20.3s Wayback
Aug 29, 2026, 4:59 PM UTC 100 791 ms 0 0 ms 2.3 kB 3/3 ±0 2,488 0% 19.9s Wayback
Aug 21, 2026, 1:18 AM UTC 100 797 ms 0 0 ms 2.3 kB 3/3 ±0 3,403 +37% 18.9s Wayback

Embed this score

Use this web component to show jamstack-comments.netlify.app'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://jamstack-comments.netlify.app/"></speedlify2-score>