shimma.info
Data from Aug 21, 2026, 7:59 AM UTC — 11h old.
Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 11h
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.
Core Web Vitals field data, origin-level
Real Chrome users, 28-day window (2026-07-23 → 2026-08-19). This is what Google measures you on.
Scores
Lab metrics Lighthouse, mobile
| Metric | Current | Previous | Change | Best | Worst | Trend |
|---|---|---|---|---|---|---|
| LCP Largest Contentful Paint | 10.42 s | — | — | 10.42 s | 10.42 s | |
| CLS Cumulative Layout Shift | 0 | — | — | 0 | 0 | |
| TBT Total Blocking Time | 403 ms | — | — | 403 ms | 403 ms | |
| FCP First Contentful Paint | 2.26 s | — | — | 2.26 s | 2.26 s | |
| Speed Index | 5.06 s | — | — | 5.06 s | 5.06 s | |
| TTFB Time to First Byte | 819 ms | — | — | 819 ms | 819 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.
Field data Chrome UX Report, origin-level
Real Chrome users, 28-day trailing window (2026-07-23 → 2026-08-19). This is what Google measures you on.
| Metric | p75 | Rating | Distribution (good / needs work / poor) |
|---|---|---|---|
| LCP CWV | 659 ms | good | 96.4% good |
| INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run | 88 ms | good | 92.8% good |
| CLS CWV | 0 | good | 96.7% good |
| FCP | 526 ms | good | 96.7% good |
| TTFB | 198 ms | good | 95.8% good |
Lab vs field
Lab LCP 10.42 s · field p75 659 ms · real users are 0.06× faster than the lab.
Field history 25 weeks
Weekly p75 from the CrUX History API, backfilled in a single request.
| Week ending | LCP | INP | CLS | FCP | TTFB |
|---|---|---|---|---|---|
| 2026-08-15 | — | — | — | — | — |
| 2026-08-08 | — | — | — | — | — |
| 2026-08-01 | — | — | — | — | — |
| 2026-07-25 | — | — | — | — | — |
| 2026-07-18 | — | — | — | — | — |
| 2026-07-11 | — | — | — | — | — |
| 2026-07-04 | — | — | — | — | — |
| 2026-06-27 | — | — | — | — | — |
| 2026-06-20 | — | — | — | — | — |
| 2026-06-13 | — | — | — | — | — |
| 2026-06-06 | — | — | — | — | — |
| 2026-05-30 | — | — | — | — | — |
Page weight
| Metric | Current | Previous | Change | Best | Worst | Trend |
|---|---|---|---|---|---|---|
| Page Weight | 2.81 MB | — | — | 2.81 MB | 2.81 MB | |
| Requests | 20 | — | — | 20 | 20 | |
| Third-party Weight | 480.7 kB | — | — | 480.7 kB | 480.7 kB | |
| Third-party CPU | 134 ms | — | — | 134 ms | 134 ms | |
| Unused JS | 208.9 kB | — | — | 208.9 kB | 208.9 kB | |
| Unused CSS | 18.4 kB | — | — | 18.4 kB | 18.4 kB |
By resource type
Third parties 3 entities
480.7 kB transferred, 134 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 | 1.37 s | — | — | 1.37 s | 1.37 s | |
| Long Tasks | 6 | — | — | 6 | 6 | |
| DOM Elements | 617 | — | — | 617 | 617 | |
| Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset | 48 | — | — | 48 | 48 | |
| A11y Failures | 4 | — | — | 4 | 4 | |
| A11y Failing Nodes | 51 | — | — | 51 | 51 |
Main thread work
Axe violations axe-core 4.13.0, full rule set
48 violating nodes across 4 rules, 821 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
valid-lang— lang attribute must have a valid value 45 nodes -
moderate
heading-order— Heading levels should only increase by one 1 node -
serious
link-name— Links must have discernible text 1 node -
moderate
meta-viewport— Zooming and scaling must not be disabled 1 node
Accessibility failures 4 of 23 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.
-
valid-lang— `[lang]` attributes do not have a valid value 48 nodes -
heading-order— Heading elements are not in a sequentially-descending order 1 node -
link-name— Links do not have a discernible name 1 node -
meta-viewport— `[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5. 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, 7:59 AM UTC | 59 | 10.42 s | 0 | 403 ms | 2.81 MB | 3/3 | ±13 | 2,801 | 31.2s |
Embed this score
Live below, then the markup that produces it. Drop that on any page to show
shimma.info'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://shimma.info/"></speedlify-score>