ethanmarcotte.com
Data from Aug 20, 2026, 10:27 PM UTC — 20h old.
Built Awesome · 1 measurement · since Aug 20, 2026 · last attempt 20h
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.
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.
Scores
Lab metrics Lighthouse, mobile
| Metric | Current | Previous | Change | Best | Worst | Trend |
|---|---|---|---|---|---|---|
| LCP Largest Contentful Paint | 2.46 s | — | — | 2.46 s | 2.46 s | |
| CLS Cumulative Layout Shift | 0 | — | — | 0 | 0 | |
| TBT Total Blocking Time | 0 ms | — | — | 0 ms | 0 ms | |
| FCP First Contentful Paint | 1.26 s | — | — | 1.26 s | 1.26 s | |
| Speed Index | 3.78 s | — | — | 3.78 s | 3.78 s | |
| TTFB Time to First Byte | 663 ms | — | — | 663 ms | 663 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.
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 | 1.85 s | good | 86.1% good |
| CLS CWV | 0 | good | 97.1% good |
| FCP | 1.63 s | good | 76.5% good |
| TTFB | 825 ms | needs-improvement | 74.4% good |
Lab vs field
Lab LCP 2.46 s · field p75 1.85 s · real users are 0.75× faster than the lab.
Field history 25 weeks
Weekly p75 from the CrUX History API, backfilled in a single request.
| Week ending | LCP | INP | CLS | FCP | TTFB |
|---|---|---|---|---|---|
| 2026-08-15 | 1.69 s | — | 0 | 1.63 s | 808 ms |
| 2026-08-08 | 1.60 s | — | 0 | 1.55 s | 698 ms |
| 2026-08-01 | 1.56 s | — | 0 | 1.53 s | 788 ms |
| 2026-07-25 | 1.45 s | — | 0 | 1.32 s | 698 ms |
| 2026-07-18 | 1.32 s | — | 0 | 1.18 s | 708 ms |
| 2026-07-11 | 1.25 s | — | 0 | 1.18 s | 667 ms |
| 2026-07-04 | 1.20 s | — | 0 | 1.13 s | 629 ms |
| 2026-06-27 | 1.27 s | — | 0 | 1.17 s | 636 ms |
| 2026-06-20 | 1.30 s | — | 0 | 1.20 s | 636 ms |
| 2026-06-13 | — | — | — | — | — |
| 2026-06-06 | — | — | — | — | — |
| 2026-05-30 | 1.07 s | — | 0 | 1.15 s | 614 ms |
Page weight
| Metric | Current | Previous | Change | Best | Worst | Trend |
|---|---|---|---|---|---|---|
| Page Weight | 370.8 kB | — | — | 370.8 kB | 370.8 kB | |
| Requests | 18 | — | — | 18 | 18 | |
| Third-party Weight | 0 B | — | — | 0 B | 0 B | |
| Third-party CPU | 0 ms | — | — | 0 ms | 0 ms | |
| Unused JS | 0 B | — | — | 0 B | 0 B | |
| Unused CSS | 0 B | — | — | 0 B | 0 B |
By resource type
Page health
| Metric | Current | Previous | Change | Best | Worst | Trend |
|---|---|---|---|---|---|---|
| Main Thread Work | 317 ms | — | — | 317 ms | 317 ms | |
| Long Tasks | 1 | — | — | 1 | 1 | |
| DOM Elements | 175 | — | — | 175 | 175 | |
| Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset | 0 | — | — | 0 | 0 | |
| A11y Failures | 0 | — | — | 0 | 0 | |
| A11y Failing Nodes | 0 | — | — | 0 | 0 |
Main thread work
Axe violations axe-core 4.13.0, full rule set
0 violating nodes across 0 rules, 382 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.
Hygiene
Changes rarely — which is exactly why a change is worth noticing.
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 | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took |
|---|---|---|---|---|---|---|---|---|---|
| Aug 20, 2026, 10:27 PM UTC | 96 | 2.46 s | 0 | 0 ms | 370.8 kB | 3/3 | ±0 | 2,701 | 29.3s |
Embed this score
Live below, then the markup that produces it. Drop that on any page to show
ethanmarcotte.com'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://ethanmarcotte.com/"></speedlify-score>