josprague.com
Ranks Overall #216 Astro Showcase #3
Data from Oct 2, 2026, 6:59 AM UTC old Measured once a month · 1 run since Oct 2, 2026
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Wayback Machine
Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).
Stack
Lighthouse Scores LAB Simulated
Metrics LAB FIELD
Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-09-02 → 2026-09-29), origin-level.
| Metric | Lab Simulated | Field | |||
|---|---|---|---|---|---|
| Value | Change / range | Trend | p75 | Distribution | |
| LCP CWV Largest Contentful Paint | 2.17 s good | — 2.17 s – 2.17 s | 560 ms good | 98.7% 0.9% 0.5% | |
| INP CWV Interaction to Next Paint — field only, no lab run can measure it | n/a | — | 50 ms good | 99.1% 0.9% 0% | |
| CLS CWV Cumulative Layout Shift | 0 good | — 0 – 0 | 0 good | 99.3% 0.5% 0.2% | |
| TBT Total Blocking Time | 0 ms good | — 0 ms – 0 ms | n/a | — | |
| FCP First Contentful Paint | 970 ms good | — 970 ms – 970 ms | 558 ms good | 96.8% 2.3% 0.9% | |
| Speed Index | 970 ms good | — 970 ms – 970 ms | n/a | — | |
| TTFB Time to First Byte | 485 ms good | — 485 ms – 485 ms | 353 ms good | 92.8% 6% 1.2% | |
LCP Subparts LAB Unthrottled
The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab LCP shown above is a simulated throttled estimate.
LCP LAB Simulated vs LCP FIELD
The lab LCP is 3.88× the field p75 — real users likely have above-average hardware or network connectivity.
Page weight
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Page Weight | 889 kB | — 889 kB – 889 kB | |
| Requests | 14 | — 14 – 14 | |
| Third-party Weight | 0 B | — 0 B – 0 B | |
| Third-party CPU | 0 ms | — 0 ms – 0 ms | |
| Unused JS | 0 B | — 0 B – 0 B | |
| Unused CSS | 0 B | — 0 B – 0 B |
By resource type
| Type | Transfer | Share | Size | Requests |
|---|---|---|---|---|
| image | 92.3% | 821 kB | 8 | |
| font | 6.3% | 55.9 kB | 3 | |
| stylesheet | 0.7% | 6.0 kB | 1 | |
| document | 0.6% | 4.9 kB | 1 | |
| other | 0.1% | 1.2 kB | 1 | |
| Total | 889 kB | 14 |
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 299 ms | — 299 ms – 299 ms | |
| Long Tasks | 0 | — 0 – 0 | |
| DOM Elements | 167 | — 167 – 167 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 0 | — 0 – 0 | |
| A11y Failures | 0 | — 0 – 0 | |
| A11y Failing Nodes | 0 | — 0 – 0 |
Main thread work
| Task | Time | Share | Duration Simulated |
|---|---|---|---|
| other | 45% | 135 ms | |
| style layout | 35% | 106 ms | |
| paint composite render | 11% | 34 ms | |
| script evaluation | 5% | 16 ms | |
| parse HTML | 3% | 8 ms | |
| script parse compile | 0% | 1 ms | |
| Total | 299 ms |
Axe violations axe-core 4.13.0, full rule set
0 violating nodes across 0 rules, 400 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
Hygiene
Measurement log
Field history 25 weeks
Weekly p75 from the CrUX History API, backfilled in a single request.
| Week ending | LCP | INP | CLS | FCP | TTFB |
|---|---|---|---|---|---|
| 2026-09-26 | 560 ms | 50 ms | 0 | 559 ms | 352 ms |
| 2026-09-19 | 558 ms | 51 ms | 0 | 556 ms | 349 ms |
| 2026-04-11 → 2026-09-12 | No data — 23 weeks under the CrUX reporting threshold | ||||
Runs
Every stored run for this URL, newest first.
| When | Scores | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took | Archive |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2, 2026, 6:59 AM UTC | 99 | 2.17 s | 0 | 0 ms | 889 kB | 3/3 | ±1 | 2,485 0% | 21.5s |
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