chromatichq.com
Data from Aug 20, 2026, 7:37 PM UTC — 23h old.
Built Awesome · 1 measurement · since Aug 20, 2026 · last attempt 23h
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 | 12.85 s | — | — | 12.85 s | 12.85 s | |
| CLS Cumulative Layout Shift | 0 | — | — | 0 | 0 | |
| TBT Total Blocking Time | 484 ms | — | — | 484 ms | 484 ms | |
| FCP First Contentful Paint | 1.08 s | — | — | 1.08 s | 1.08 s | |
| Speed Index | 2.85 s | — | — | 2.85 s | 2.85 s | |
| TTFB Time to First Byte | 634 ms | — | — | 634 ms | 634 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 | 1.59 MB | — | — | 1.59 MB | 1.59 MB | |
| Requests | 93 | — | — | 93 | 93 | |
| Third-party Weight | 904.3 kB | — | — | 904.3 kB | 904.3 kB | |
| Third-party CPU | 287 ms | — | — | 287 ms | 287 ms | |
| Unused JS | 309.2 kB | — | — | 309.2 kB | 309.2 kB | |
| Unused CSS | 24.6 kB | — | — | 24.6 kB | 24.6 kB |
By resource type
Third parties 7 entities
904.3 kB transferred, 287 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 | 3.60 s | — | — | 3.60 s | 3.60 s | |
| Long Tasks | 13 | — | — | 13 | 13 | |
| DOM Elements | 336 | — | — | 336 | 336 | |
| Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset | 39 | — | — | 39 | 39 | |
| A11y Failures | 3 | — | — | 3 | 3 | |
| A11y Failing Nodes | 5 | — | — | 5 | 5 |
Main thread work
Axe violations axe-core 4.13.0, full rule set
39 violating nodes across 6 rules, 505 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 29 nodes -
critical
aria-required-attr— Required ARIA attributes must be provided 3 nodes -
serious
nested-interactive— Interactive controls must not be nested 3 nodes -
moderate
landmark-one-main— Document should have one main landmark 2 nodes -
minor
aria-allowed-role— ARIA role should be appropriate for the element 1 node -
moderate
heading-order— Heading levels should only increase by one 1 node
Accessibility failures 3 of 33 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.
-
aria-required-attr— `[role]`s do not have all required `[aria-*]` attributes 3 nodes -
heading-order— Heading elements are not in a sequentially-descending order 1 node -
landmark-one-main— Document does not have a main landmark. 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 20, 2026, 7:37 PM UTC | 62 | 12.85 s | 0 | 484 ms | 1.59 MB | 3/3 | ±8 | 4,395 | 33s |
Embed this score
Live below, then the markup that produces it. Drop that on any page to show
chromatichq.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://chromatichq.com/"></speedlify-score>