swelldiary.com
Data from Aug 21, 2026, 4:34 PM UTC — 2h old.
Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 2h
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 | 4.22 s | — | — | 4.22 s | 4.22 s | |
| CLS Cumulative Layout Shift | 0.013 | — | — | 0.013 | 0.013 | |
| TBT Total Blocking Time | 128 ms | — | — | 128 ms | 128 ms | |
| FCP First Contentful Paint | 2.90 s | — | — | 2.90 s | 2.90 s | |
| Speed Index | 2.90 s | — | — | 2.90 s | 2.90 s | |
| TTFB Time to First Byte | 603 ms | — | — | 603 ms | 603 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 | 668.0 kB | — | — | 668.0 kB | 668.0 kB | |
| Requests | 25 | — | — | 25 | 25 | |
| Third-party Weight | 655.3 kB | — | — | 655.3 kB | 655.3 kB | |
| Third-party CPU | 101 ms | — | — | 101 ms | 101 ms | |
| Unused JS | 72.5 kB | — | — | 72.5 kB | 72.5 kB | |
| Unused CSS | 32.1 kB | — | — | 32.1 kB | 32.1 kB |
By resource type
Third parties 5 entities
655.3 kB transferred, 101 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 | 899 ms | — | — | 899 ms | 899 ms | |
| Long Tasks | 4 | — | — | 4 | 4 | |
| DOM Elements | 1,108 | — | — | 1,108 | 1,108 | |
| Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset | 156 | — | — | 156 | 156 | |
| A11y Failures | 3 | — | — | 3 | 3 | |
| A11y Failing Nodes | 214 | — | — | 214 | 214 |
Main thread work
Axe violations axe-core 4.13.0, full rule set
156 violating nodes across 3 rules, 2302 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.
-
serious
color-contrast— Elements must meet minimum color contrast ratio thresholds 154 nodes -
moderate
heading-order— Heading levels should only increase by one 1 node -
moderate
region— All page content should be contained by landmarks 1 node
Accessibility failures 3 of 20 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.
-
color-contrast— Background and foreground colors do not have a sufficient contrast ratio. 154 nodes -
target-size— Touch targets do not have sufficient size or spacing. 59 nodes -
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, 4:34 PM UTC | 80 | 4.22 s | 0.013 | 128 ms | 668.0 kB | 3/3 | ±11 | 2,464 | 33.9s |
Embed this score
Live below, then the markup that produces it. Drop that on any page to show
swelldiary.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://swelldiary.com/"></speedlify-score>