tdh.se
Data from Aug 21, 2026, 9:36 AM UTC — 9h old.
11ty Emeritus · 1 measurement · since Aug 21, 2026 · last attempt 9h
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 | 3.93 s | — | — | 3.93 s | 3.93 s | |
| CLS Cumulative Layout Shift | 0 | — | — | 0 | 0 | |
| TBT Total Blocking Time | 0 ms | — | — | 0 ms | 0 ms | |
| FCP First Contentful Paint | 1.38 s | — | — | 1.38 s | 1.38 s | |
| Speed Index | 1.38 s | — | — | 1.38 s | 1.38 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 | 623.8 kB | — | — | 623.8 kB | 623.8 kB | |
| Requests | 18 | — | — | 18 | 18 | |
| Third-party Weight | 15.2 kB | — | — | 15.2 kB | 15.2 kB | |
| Third-party CPU | 5 ms | — | — | 5 ms | 5 ms | |
| Unused JS | 0 B | — | — | 0 B | 0 B | |
| Unused CSS | 0 B | — | — | 0 B | 0 B |
By resource type
Third parties 2 entities
15.2 kB transferred, 5 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 | 357 ms | — | — | 357 ms | 357 ms | |
| Long Tasks | 0 | — | — | 0 | 0 | |
| DOM Elements | 276 | — | — | 276 | 276 | |
| Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset | 5 | — | — | 5 | 5 | |
| A11y Failures | 1 | — | — | 1 | 1 | |
| A11y Failing Nodes | 1 | — | — | 1 | 1 |
Main thread work
Axe violations axe-core 4.13.0, full rule set
5 violating nodes across 5 rules, 578 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
heading-order— Heading levels should only increase by one 1 node -
moderate
landmark-banner-is-top-level— Banner landmark should not be contained in another landmark 1 node -
moderate
landmark-no-duplicate-banner— Document should not have more than one banner landmark 1 node -
moderate
landmark-unique— Landmarks should have a unique role or role/label/title (i.e. accessible name) combination 1 node -
moderate
page-has-heading-one— Page should contain a level-one heading 1 node
Accessibility failures 1 of 21 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.
-
heading-order— Heading elements are not in a sequentially-descending order 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, 9:36 AM UTC | 87 | 3.93 s | 0 | 0 ms | 623.8 kB | 3/3 | ±1 | 2,372 | 26.9s |
Embed this score
Live below, then the markup that produces it. Drop that on any page to show
tdh.se'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://tdh.se/"></speedlify-score>