jndjs.dev
Data from Aug 21, 2026, 1:14 AM UTC — 17h old.
Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 17h
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.
Scores
Lab metrics Lighthouse, mobile
| Metric | Current | Previous | Change | Best | Worst | Trend |
|---|---|---|---|---|---|---|
| LCP Largest Contentful Paint | 2.61 s | — | — | 2.61 s | 2.61 s | |
| CLS Cumulative Layout Shift | 0 | — | — | 0 | 0 | |
| TBT Total Blocking Time | 0 ms | — | — | 0 ms | 0 ms | |
| FCP First Contentful Paint | 942 ms | — | — | 942 ms | 942 ms | |
| Speed Index | 2.56 s | — | — | 2.56 s | 2.56 s | |
| TTFB Time to First Byte | 777 ms | — | — | 777 ms | 777 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.
Page weight
| Metric | Current | Previous | Change | Best | Worst | Trend |
|---|---|---|---|---|---|---|
| Page Weight | 62.0 kB | — | — | 62.0 kB | 62.0 kB | |
| Requests | 16 | — | — | 16 | 16 | |
| Third-party Weight | 8.5 kB | — | — | 8.5 kB | 8.5 kB | |
| Third-party CPU | 4 ms | — | — | 4 ms | 4 ms | |
| Unused JS | 0 B | — | — | 0 B | 0 B | |
| Unused CSS | 0 B | — | — | 0 B | 0 B |
By resource type
Third parties 3 entities
8.5 kB transferred, 4 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.
Page health
| Metric | Current | Previous | Change | Best | Worst | Trend |
|---|---|---|---|---|---|---|
| Main Thread Work | 253 ms | — | — | 253 ms | 253 ms | |
| Long Tasks | 0 | — | — | 0 | 0 | |
| DOM Elements | 231 | — | — | 231 | 231 | |
| 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, 528 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 21, 2026, 1:14 AM UTC | 96 | 2.61 s | 0 | 0 ms | 62.0 kB | 3/3 | ±3 | 2,486 | 31s |
Embed this score
Live below, then the markup that produces it. Drop that on any page to show
jndjs.dev'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://jndjs.dev/"></speedlify-score>