speedlify2

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

Measurement runs · Embed a score · Field data from the Chrome UX Report ·

koboldthinktank.site

https://koboldthinktank.site/

92 100 100 100 CWV 3AXE

Data from Aug 21, 2026, 3:08 AM UTC — 16h old.

Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 16h

Stack

Detected on the same page load as the accessibility pass — the generator from <meta name="generator"> or the shape of the page, the host from response headers.

Eleventy 2.0.1 Built with Eleventy 2.0.1
Netlify Hosted by Netlify

Core Web Vitals field data, origin-level

Real Chrome users, 28-day window (2026-07-22 → 2026-08-18). This is what Google measures you on.

LCP 1.20 s good
INP no data
CLS 0 good

Scores

92
Performance
no change
100
Accessibility
no change
100
Best Practices
no change
100
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 3.35 s 3.35 s 3.35 s
CLS Cumulative Layout Shift 0.032 0.032 0.032
TBT Total Blocking Time 50 ms 50 ms 50 ms
FCP First Contentful Paint 797 ms 797 ms 797 ms
Speed Index 797 ms 797 ms 797 ms
TTFB Time to First Byte 623 ms 623 ms 623 ms

What LCP is made of

A flat LCP number tells you something regressed. The subparts tell you whether it was the server, resource discovery, the download, or rendering.

resource load duration 56 ms
time to first byte 25 ms
element render delay 21 ms
resource load delay 11 ms

Field data Chrome UX Report, origin-level

Real Chrome users, 28-day trailing window (2026-07-22 → 2026-08-18). This is what Google measures you on.

Metric p75 Rating Distribution (good / needs work / poor)
LCP CWV 1.20 s good 95.3% good
CLS CWV 0 good 94.1% good
FCP 935 ms good 93.8% good
TTFB 763 ms good 79% good

Lab vs field

Lab LCP 3.35 s · field p75 1.20 s · real users are 0.36× faster than the lab.

Field history 25 weeks

Weekly p75 from the CrUX History API, backfilled in a single request.

Week ending LCPINPCLSFCPTTFB
2026-08-15 1.25 s 0 933 ms 732 ms
2026-08-08 1.21 s 0 959 ms 783 ms
2026-08-01 1.13 s 0 933 ms 668 ms
2026-07-25 1.07 s 79 ms 0 869 ms 657 ms
2026-07-18 999 ms 80 ms 0 867 ms 657 ms
2026-07-11 999 ms 79 ms 0 851 ms 610 ms
2026-07-04 1.02 s 74 ms 0 853 ms 646 ms
2026-06-27 976 ms 0 827 ms 644 ms
2026-06-20 1.01 s 71 ms 0 881 ms 655 ms
2026-06-13 1.01 s 76 ms 0 873 ms 688 ms
2026-06-06 1.05 s 85 ms 0 929 ms 723 ms
2026-05-30 1.09 s 88 ms 0 929 ms 720 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 315.1 kB 315.1 kB 315.1 kB
Requests 12 12 12
Third-party Weight 285.7 kB 285.7 kB 285.7 kB
Third-party CPU 59 ms 59 ms 59 ms
Unused JS 71.1 kB 71.1 kB 71.1 kB
Unused CSS 0 B 0 B 0 B

By resource type

script 168.9 kB · 3 req
font 113.5 kB · 2 req
image 27.3 kB · 5 req
document 4.3 kB · 1 req
stylesheet 1.1 kB · 1 req
third party 285.7 kB · 7 req

Third parties 3 entities

285.7 kB transferred, 59 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

Google Tag Manager 163.7 kB · 52 ms CPU
Google Fonts 114.5 kB · 0 ms CPU
buymeacoffee.com 7.5 kB · 7 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 507 ms 507 ms 507 ms
Long Tasks 2 2 2
DOM Elements 77 77 77
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 3 3 3
A11y Failures 0 0 0
A11y Failing Nodes 0 0 0

Main thread work

script evaluation 214 ms
other 145 ms
style layout 73 ms
script parse compile 43 ms
paint composite render 22 ms
parse HTML 11 ms

Axe violations axe-core 4.13.0, full rule set

3 violating nodes across 1 rule, 217 passing. This is a standalone axe run, stricter than the subset Lighthouse folds into its score above — and it is the second tiebreaker in the ranking.

  • moderate region — All page content should be contained by landmarks 3 nodes

Hygiene

Changes rarely — which is exactly why a change is worth noticing.

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Every stored run for this URL, newest first. Failures are kept as records — "this site was down on Tuesday" is data too.

When PerfLCPCLSTBTWeight RunsSpreadBenchTook
Aug 21, 2026, 3:08 AM UTC 92 3.35 s 0.032 50 ms 315.1 kB 3/3 ±7 2,341 23.4s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show koboldthinktank.site's scores, updated whenever this instance re-measures — more about the component. Don’t forget to bundle the speedlify-score.js component code into your site!

<speedlify-score speedlify-url="https://zachleat.github.io/speedlify2/" url="https://koboldthinktank.site/"></speedlify-score>