jcrt.org
Ranks Overall #1,018 Built Awesome #791
Data from Sep 5, 2026, 5:58 PM UTC old Measured once a week · 3 runs since Aug 21, 2026
Elsewhere:
PageSpeed Insights ·
Calibre ·
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CrUX Vis ·
Wayback Machine
Stack
Core Web Vitals field data, origin-level
Real Chrome users, 28-day window (2026-08-07 → 2026-09-03).
Lighthouse Scores
Lab metrics Lighthouse, mobile
| Metric | Current | Previous | Change | Best | Worst | Trend |
|---|---|---|---|---|---|---|
| LCP Largest Contentful Paint | 2.08 s | 1.69 s | ↑ +396 ms (+23.4%) | 1.69 s | 2.49 s | |
| CLS Cumulative Layout Shift | 0.013 | 0.112 | ↓ -0.099 (-88.4%) | 0.008 | 0.112 | |
| TBT Total Blocking Time | 0 ms | 0 ms | → no change | 0 ms | 0 ms | |
| FCP First Contentful Paint | 1.71 s | 1.68 s | ↑ +31 ms (+1.8%) | 1.67 s | 1.71 s | |
| Speed Index | 1.71 s | 1.68 s | ↑ +31 ms (+1.8%) | 1.67 s | 1.71 s | |
| TTFB Time to First Byte | 481 ms | 470 ms | ↑ +11 ms (+2.3%) | 460 ms | 481 ms |
LCP Subparts lab observed, unthrottled
The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab metrics LCP metric shown above is throttled.
Field data Chrome UX Report, origin-level
Real Chrome users, 28-day trailing window (2026-08-07 → 2026-09-03).
| Metric | p75 | Rating | Distribution (good / needs work / poor) |
|---|---|---|---|
| LCP CWV | 1.52 s | good | 85.9% good |
| CLS CWV | 0 | good | 94.9% good |
| FCP | 1.49 s | good | 80% good |
| TTFB | 949 ms | needs-improvement | 65.5% good |
Lab LCP vs Field LCP
The lab LCP is 1.37× the field p75 — real users likely have above-average hardware or network connectivity.
Field history 25 weeks
Weekly p75 from the CrUX History API, backfilled in a single request.
| Week ending | LCP | INP | CLS | FCP | TTFB |
|---|---|---|---|---|---|
| 2026-09-05 | 1.57 s | — | 0 | 1.47 s | 916 ms |
| 2026-08-29 | 1.55 s | — | 0 | 1.49 s | 989 ms |
| 2026-08-22 | 1.52 s | — | 0 | 1.46 s | 1.10 s |
| 2026-08-15 | 1.52 s | — | 0 | 1.46 s | 1.14 s |
| 2026-08-08 | 2.08 s | — | 0 | 1.93 s | 1.26 s |
| 2026-08-01 | 1.97 s | — | 0 | 1.90 s | 1.24 s |
| 2026-07-25 | 2.07 s | — | 0 | 1.91 s | 1.23 s |
| 2026-07-18 | 2.01 s | — | 0 | 1.91 s | 1.22 s |
| 2026-07-11 | 2.01 s | — | 0 | 1.77 s | 1.08 s |
| 2026-06-27 → 2026-07-04 | No data — 2 weeks under the CrUX reporting threshold | ||||
| 2026-06-20 | 1.87 s | — | 0 | 1.77 s | 1.32 s |
| 2026-06-13 | 1.87 s | — | 0 | 1.82 s | 1.33 s |
Page weight
| Metric | Current | Previous | Change | Best | Worst | Trend |
|---|---|---|---|---|---|---|
| Page Weight | 190 kB | 226 kB | ↓ -34.9 kB (-15.8%) | 190 kB | 266 kB | |
| Requests | 25 | 23 | ↑ +2 (+8.7%) significant | 23 | 25 | |
| Third-party Weight | 10.2 kB | 18.2 kB | ↓ -7.8 kB (-43.9%) significant | 10.2 kB | 19.7 kB | |
| Third-party CPU | 5 ms | 3 ms | ↑ +2 ms (+75.9%) | 3 ms | 5 ms | |
| Unused JS | 0 B | 23.9 kB | ↓ -23.3 kB (-100%) significant | 0 B | 23.9 kB | |
| Unused CSS | 0 B | 0 B | → no change | 0 B | 0 B |
By resource type
- image 48.9% 91.9 kB · 7 req
- script 28.1% 52.9 kB · 4 req
- stylesheet 13.2% 24.8 kB · 4 req
- document 7.7% 14.5 kB · 1 req
- other 2.1% 4.0 kB · 6 req
Third parties 1 entities
10.2 kB transferred, 5 ms on the main thread.
Page health
| Metric | Current | Previous | Change | Best | Worst | Trend |
|---|---|---|---|---|---|---|
| Main Thread Work | 781 ms | 556 ms | ↑ +225 ms (+40.4%) | 556 ms | 781 ms | |
| Long Tasks | 1 | 0 | ↑ +1 | 0 | 1 | |
| DOM Elements | 330 | 315 | ↑ +15 (+4.8%) | 315 | 330 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 7 | 7 | → no change | 1 | 7 | |
| A11y Failures | 1 | 1 | → no change | 1 | 1 | |
| A11y Failing Nodes | 6 | 5 | ↑ +1 (+20%) significant | 5 | 6 |
Main thread work
Axe violations axe-core 4.13.0, full rule set
7 violating nodes across 1 rule, 605 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
-
moderate
region— All page content should be contained by landmarks 7 nodes
Accessibility failures 1 of 27 audits
-
label-content-name-mismatch— Elements with visible text labels do not have matching accessible names. 6 nodes
Hygiene
Measurement log
Every stored run for this URL, newest first.
| When | Scores | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took | Archive |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 5, 2026, 5:58 PM UTC | 98 | 2.08 s | 0.013 | 0 ms | 190 kB | 3/3 | ±2 | 2,378 -4% | 25s |
|
|
| Aug 29, 2026, 5:01 PM UTC | 95 | 1.69 s | 0.112 | 0 ms | 226 kB | 3/3 | ±8 | 2,957 +19% | 23s |
|
|
| Aug 21, 2026, 1:17 AM UTC | 97 | 2.49 s | 0.008 | 0 ms | 266 kB | 3/3 | ±1 | 2,463 -1% | 27s |
|
Embed this score
Use this web component to show jcrt.org's scores on any website, updated whenever this instance re-measures. Don’t forget to bundle the speedlify2-score.js component code into your site!
<speedlify2-score speedlify-url="https://www.speedlify.dev/" url="https://jcrt.org/"></speedlify2-score>