juanlam.com
Data from Aug 21, 2026, 3:02 AM UTC — 16h old.
Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 16h
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 | 18.05 s | — | — | 18.05 s | 18.05 s | |
| CLS Cumulative Layout Shift | 0.148 | — | — | 0.148 | 0.148 | |
| TBT Total Blocking Time | 121 ms | — | — | 121 ms | 121 ms | |
| FCP First Contentful Paint | 1.91 s | — | — | 1.91 s | 1.91 s | |
| Speed Index | 1.91 s | — | — | 1.91 s | 1.91 s | |
| TTFB Time to First Byte | 604 ms | — | — | 604 ms | 604 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 | 3.27 MB | — | — | 3.27 MB | 3.27 MB | |
| Requests | 50 | — | — | 50 | 50 | |
| Third-party Weight | 715.5 kB | — | — | 715.5 kB | 715.5 kB | |
| Third-party CPU | 91 ms | — | — | 91 ms | 91 ms | |
| Unused JS | 92.1 kB | — | — | 92.1 kB | 92.1 kB | |
| Unused CSS | 14.7 kB | — | — | 14.7 kB | 14.7 kB |
By resource type
Third parties 6 entities
715.5 kB transferred, 91 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 | 1.54 s | — | — | 1.54 s | 1.54 s | |
| Long Tasks | 6 | — | — | 6 | 6 | |
| DOM Elements | 431 | — | — | 431 | 431 | |
| Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset | 49 | — | — | 49 | 49 | |
| A11y Failures | 3 | — | — | 3 | 3 | |
| A11y Failing Nodes | 41 | — | — | 41 | 41 |
Main thread work
Axe violations axe-core 4.13.0, full rule set
49 violating nodes across 7 rules, 553 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 26 nodes -
serious
link-name— Links must have discernible text 10 nodes -
minor
image-redundant-alt— Alternative text of images should not be repeated as text 7 nodes -
moderate
heading-order— Heading levels should only increase by one 2 nodes -
moderate
region— All page content should be contained by landmarks 2 nodes -
minor
empty-heading— Headings should not be empty 1 node -
serious
scrollable-region-focusable— Scrollable region must have keyboard access 1 node
Accessibility failures 3 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.
-
color-contrast— Background and foreground colors do not have a sufficient contrast ratio. 29 nodes -
link-name— Links do not have a discernible name 10 nodes -
heading-order— Heading elements are not in a sequentially-descending order 2 nodes
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, 3:02 AM UTC | 67 | 18.05 s | 0.148 | 121 ms | 3.27 MB | 3/3 | ±6 | 2,492 | 28.2s |
Embed this score
Live below, then the markup that produces it. Drop that on any page to show
juanlam.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://juanlam.com/"></speedlify-score>