sia.codes
Data from Aug 21, 2026, 6:46 AM UTC — 12h old.
Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 12h
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 | 2.06 s | — | — | 2.06 s | 2.06 s | |
| CLS Cumulative Layout Shift | 0.012 | — | — | 0.012 | 0.012 | |
| TBT Total Blocking Time | 70 ms | — | — | 70 ms | 70 ms | |
| FCP First Contentful Paint | 1.68 s | — | — | 1.68 s | 1.68 s | |
| Speed Index | 1.68 s | — | — | 1.68 s | 1.68 s | |
| TTFB Time to First Byte | 467 ms | — | — | 467 ms | 467 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 | 468.5 kB | — | — | 468.5 kB | 468.5 kB | |
| Requests | 26 | — | — | 26 | 26 | |
| Third-party Weight | 278.8 kB | — | — | 278.8 kB | 278.8 kB | |
| Third-party CPU | 73 ms | — | — | 73 ms | 73 ms | |
| Unused JS | 69.5 kB | — | — | 69.5 kB | 69.5 kB | |
| Unused CSS | 0 B | — | — | 0 B | 0 B |
By resource type
Third parties 5 entities
278.8 kB transferred, 73 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 | 785 ms | — | — | 785 ms | 785 ms | |
| Long Tasks | 4 | — | — | 4 | 4 | |
| DOM Elements | 320 | — | — | 320 | 320 | |
| Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset | 0 | — | — | 0 | 0 | |
| A11y Failures | 1 | — | — | 1 | 1 | |
| A11y Failing Nodes | 1 | — | — | 1 | 1 |
Main thread work
Axe violations axe-core 4.13.0, full rule set
0 violating nodes across 0 rules, 521 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.
Accessibility failures 1 of 28 audits
Tracked as a count, not just the score — the weighted score is coarse enough that you can ship a broken component and barely move it.
-
label-content-name-mismatch— Elements with visible text labels do not have matching accessible names. 1 node
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, 6:46 AM UTC | 98 | 2.06 s | 0.012 | 70 ms | 468.5 kB | 3/3 | ±0 | 2,416 | 23.5s |
Embed this score
Live below, then the markup that produces it. Drop that on any page to show
sia.codes'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://sia.codes/"></speedlify-score>