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

blog.frost.kiwi

https://blog.frost.kiwi/

100 100 100 100 !AXE ✓CWV

Ranks Overall #511 Built Awesome #418

Data from Sep 4, 2026, 2:49 PM UTC old Measured once a week · 3 runs since Aug 20, 2026

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

Stack

Eleventy 3.1.2 Built with Eleventy 3.1.2
GitHub Pages Hosted by GitHub Pages

Lighthouse Scores

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

Filmstrip Lighthouse, mobile

How the page drew during the measured load, at 8 points across 3.00 s.

  1. 375 ms
  2. 750 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

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 (2026-08-06 → 2026-09-02), origin-level.

Metric Lab Lighthouse Field Chrome UX Report
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 912 ms good ↑ +9 ms (+1%) 903 ms – 912 ms 1.11 s good 95.4% 4.6% 0%
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 94.9% 4% 1%
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms n/a —
FCP First Contentful Paint 823 ms good ↑ +9 ms (+1.1%) 809 ms – 823 ms 1.08 s good 91.1% 4.9% 4%
Speed Index 823 ms good ↑ +9 ms (+1.1%) 809 ms – 823 ms n/a —
TTFB Time to First Byte 612 ms good ↑ +9 ms (+1.5%) 603 ms – 612 ms — —

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 59 ms
time to first byte 12 ms

Lab LCP vs Field LCP Chrome UX Report

Lab 912 ms
Field p75 1.11 s

The lab LCP is 0.82× the field p75 — real users likely have below-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 98.5 kB ↓ -13.7 kB (-12.4%) 97.0 kB – 112 kB
Requests 19 → no change 19 – 19
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

  • image 83.2% 82.0 kB · 16 req
  • other 9.1% 9.0 kB · 2 req
  • document 7.6% 7.5 kB · 1 req

Without JavaScript

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

Scripts disabled
As rendered

1.2% 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 328 ms ↑ +38 ms (+13.2%) significant 290 ms – 328 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 192 → no change 192 – 192
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 1 → no change 1 – 1
A11y Failures 0 → no change 0 – 0
A11y Failing Nodes 0 → no change 0 – 0

Main thread work

other 169 ms
style layout 112 ms
paint composite render 22 ms
script evaluation 12 ms
parse HTML 11 ms
script parse compile 1 ms

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 325 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • moderate page-has-heading-one — Page should contain a level-one heading 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 1.11 s — 0 1.13 s —
2026-08-29 1.08 s — 0 1.02 s —
2026-08-22 1.02 s — 0 983 ms 651 ms
2026-08-15 1.11 s — 0 1.07 s 721 ms
2026-08-08 1.22 s — 0 1.19 s 651 ms
2026-08-01 1.49 s — 0 1.48 s —
2026-07-25 1.62 s — 0 1.51 s 918 ms
2026-06-13 → 2026-07-18 No data — 6 weeks under the CrUX reporting threshold
2026-06-06 989 ms — 0 833 ms 634 ms
2026-05-30 1.11 s — 0 1.04 s 699 ms
2026-05-23 1.16 s — 0 1.09 s 655 ms
2026-05-16 1.12 s — 0 1.16 s 649 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Sep 4, 2026, 2:49 PM UTC 100 912 ms 0 0 ms 98.5 kB 3/3 ±18 2,493 0% 22.4s Wayback
Aug 28, 2026, 1:49 PM UTC 100 903 ms 0 0 ms 112 kB 3/3 ±1 2,299 -7% 20.8s Wayback
Aug 20, 2026, 7:17 PM UTC 100 912 ms 0 0 ms 97.0 kB 3/3 ±0 2,347 -5% 21s Wayback

Embed this score

Use this web component to show blog.frost.kiwi'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://blog.frost.kiwi/"></speedlify2-score>