cassey.dev
Ranks Overall #420 Built Awesome #338
Data from Sep 21, 2026, 7:40 AM UTC old Measured once a week · 6 runs since Aug 21, 2026
Elsewhere:
PageSpeed Insights ·
Calibre ·
Treo ·
CrUX Vis ·
Tame the Bots ·
Scoring Calculator ·
Wayback Machine
https://www.cassey.dev/.
History from the previous URL is included below, with the move on Sep 7, 2026. A step-change around that point is likely the change of address rather than a regression.
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
No field data: the Chrome UX Report is not being collected for this project, so every figure below is from the Lighthouse run.
| Metric | Lab Simulated | ||
|---|---|---|---|
| Value | Change / range | Trend | |
| LCP CWV (estimate) Largest Contentful Paint | 2.44 s good | ↓ -37 ms (-1.5%) 2.44 s – 3.24 s | |
| INP CWV Interaction to Next Paint — field only, no lab run can measure it | n/a | — | |
| CLS CWV (estimate) Cumulative Layout Shift | 0.086 good | → no change 0.059 – 0.086 | |
| TBT Total Blocking Time | 0 ms good | → no change 0 ms – 0 ms | |
| FCP First Contentful Paint | 2.44 s needs work | ↓ -37 ms (-1.5%) 2.44 s – 3.24 s | |
| Speed Index | 2.44 s good | ↓ -37 ms (-1.5%) 2.44 s – 3.24 s | |
| TTFB Time to First Byte | 466 ms good | ↓ -15 ms (-3.1%) 463 ms – 660 ms | |
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.
Page weight
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Page Weight | 55.9 kB | ↑ +58 B (+0.1%) 55.1 kB – 57.3 kB | |
| Requests | 14 | → no change 14 – 15 | |
| Third-party Weight | 41.8 kB | → no change 41.7 kB – 43.1 kB | |
| Third-party CPU | 4 ms | ↓ -0 ms (-7.1%) 4 ms – 46 ms | |
| Unused JS | 0 B | → no change 0 B – 0 B | |
| Unused CSS | 0 B | → no change 0 B – 0 B |
By resource type
| Type | Transfer | Share | Size | Requests |
|---|---|---|---|---|
| font | 54.4% | 29.8 kB | 2 | |
| script | 18.7% | 10.2 kB | 1 | |
| stylesheet | 16.1% | 8.8 kB | 4 | |
| document | 6% | 3.3 kB | 1 | |
| image | 4% | 2.2 kB | 2 | |
| other | 0.8% | 439 B | 1 | |
| Total | 55.9 kB | 14 |
Third parties 2 entities
| Entity | Transfer | Size | Main thread Simulated |
|---|---|---|---|
| Google Fonts | 31.6 kB | 0 ms | |
| Cloudflare | 10.2 kB | 4 ms | |
| Total | 41.8 kB | 4 ms |
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 204 ms | ↓ -17 ms (-7.8%) 201 ms – 1.12 s | |
| Long Tasks | 0 | → no change 0 – 5 | |
| DOM Elements | 67 | → no change 67 – 67 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 0 | → no change 0 – 0 | |
| A11y Failures | 0 | → no change 0 – 0 | |
| A11y Failing Nodes | 0 | → no change 0 – 0 |
Main thread work
| Task | Time | Share | Duration Simulated |
|---|---|---|---|
| other | 44% | 90 ms | |
| style layout | 23% | 48 ms | |
| script evaluation | 23% | 47 ms | |
| parse HTML | 4% | 8 ms | |
| paint composite render | 4% | 8 ms | |
| garbage collection | 1% | 2 ms | |
| script parse compile | 1% | 1 ms | |
| Total | 204 ms |
Axe violations axe-core 4.13.0, full rule set
0 violating nodes across 0 rules, 114 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
Best Practices failures 1 of 19 audits
-
image-size-responsive— Serves images with low resolution 1 item
Hygiene
Measurement log
Every stored run for this URL, newest first.
| When | Scores | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took | Archive |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 21, 2026, 7:40 AM UTC | 93 | 2.44 s | 0.086 | 0 ms | 55.9 kB | 3/3 | ±1 | 2,485 0% | 26.2s |
|
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| Sep 14, 2026, 5:49 AM UTC | 92 | 2.48 s | 0.086 | 0 ms | 55.8 kB | 3/3 | ±6 | 2,491 0% | 23.8s |
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| Sep 7, 2026, 3:04 AM UTC | 92 | 2.49 s | 0.086 | 0 ms | 55.3 kB | 3/3 | ±1 | 2,028 -18% | 23.3s |
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| Sep 6, 2026, 9:03 PM UTC old URL | 93 | 2.54 s | 0.059 | 0 ms | 56.2 kB | 3/3 | ±11 | 2,347 -6% | 23.6s |
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| Aug 30, 2026, 8:40 PM UTC old URL | 86 | 3.24 s | 0.059 | 0 ms | 55.1 kB | 3/3 | ±9 | 2,726 +10% | 23.6s |
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| Aug 21, 2026, 11:26 AM UTC old URL | 85 | 3.19 s | 0.086 | 0 ms | 57.3 kB | 3/3 | ±1 | 2,509 +1% | 20.7s |
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