cathydutton.co.uk
Ranks Overall #356 Built Awesome #277
Data from Oct 3, 2026, 1:50 AM UTC old Measured once a week · 7 runs since Aug 20, 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
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 | 2.70 s needs work | ↓ -60 ms (-2.2%) 2.65 s – 2.88 s | |
| INP CWV Interaction to Next Paint — field only, no lab run can measure it | n/a | — | |
| CLS CWV (estimate) Cumulative Layout Shift | 0 good | → no change 0 – 0 | |
| TBT Total Blocking Time | 50 ms good | ↓ -14 ms (-21.9%) 22 ms – 88 ms | |
| FCP First Contentful Paint | 1.58 s good | ↓ -19 ms (-1.2%) 1.53 s – 2.73 s | |
| Speed Index | 2.90 s good | ↓ -191 ms (-6.2%) 2.79 s – 3.63 s | |
| TTFB Time to First Byte | 640 ms good | ↓ -34 ms (-5%) significant 614 ms – 674 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 | 290 kB | ↑ +1.4 kB (+0.5%) 282 kB – 290 kB | |
| Requests | 27 | → no change 27 – 27 | |
| Third-party Weight | 180 kB | ↑ +1.5 kB (+0.8%) 172 kB – 180 kB | |
| Third-party CPU | 54 ms | ↓ -8 ms (-12.8%) 39 ms – 82 ms | |
| Unused JS | 77.1 kB | ↑ +1.2 kB (+1.6%) 73.1 kB – 77.1 kB | |
| Unused CSS | 0 B | → no change 0 B – 0 B |
By resource type
| Type | Transfer | Share | Size | Requests |
|---|---|---|---|---|
| script | 62.2% | 181 kB | 3 | |
| image | 31.2% | 90.7 kB | 18 | |
| document | 2.5% | 7.4 kB | 1 | |
| stylesheet | 2.3% | 6.6 kB | 2 | |
| other | 1.7% | 5.1 kB | 3 | |
| Total | 290 kB | 27 |
Third parties 3 entities
| Entity | Transfer | Size | Main thread Simulated |
|---|---|---|---|
| Google Tag Manager | 178 kB | 53 ms | |
| Unpkg | 1.1 kB | 1 ms | |
| Google Fonts | 614 B | 0 ms | |
| Total | 180 kB | 54 ms |
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 522 ms | ↓ -167 ms (-24.3%) significant 455 ms – 764 ms | |
| Long Tasks | 2 | → no change 2 – 3 | |
| DOM Elements | 234 | → no change 234 – 234 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 0 | → no change 0 – 8 | |
| A11y Failures | 1 | → no change 1 – 1 | |
| A11y Failing Nodes | 1 | → no change 1 – 1 |
Main thread work
| Task | Time | Share | Duration Simulated |
|---|---|---|---|
| script evaluation | 39% | 204 ms | |
| other | 30% | 154 ms | |
| style layout | 17% | 89 ms | |
| script parse compile | 8% | 41 ms | |
| paint composite render | 4% | 23 ms | |
| parse HTML | 2% | 12 ms | |
| Total | 522 ms |
Axe violations axe-core 4.13.0, full rule set
0 violating nodes across 0 rules, 693 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
Accessibility failures 1 of 29 audits
-
label-content-name-mismatch— Elements with visible text labels do not have matching accessible names. 1 node
Hygiene
Measurement log
Every stored run for this URL, newest first.
| When | Scores | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took | Archive |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 3, 2026, 1:50 AM UTC | 95 | 2.70 s | 0 | 50 ms | 290 kB | 3/3 | ±2 | 3,198 +29% | 22.9s |
|
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| Sep 25, 2026, 11:56 PM UTC | 95 | 2.76 s | 0 | 64 ms | 289 kB | 3/3 | ±4 | 2,493 0% | 25.4s |
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| Sep 18, 2026, 8:33 PM UTC | 90 | 2.88 s | 0 | 53 ms | 288 kB | 3/3 | ±19 | 2,741 +10% | 25.1s |
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| Sep 11, 2026, 5:38 PM UTC | 94 | 2.87 s | 0 | 67 ms | 288 kB | 3/3 | ±3 | 2,485 0% | 24.4s |
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| Sep 4, 2026, 2:55 PM UTC | 95 | 2.65 s | 0 | 78 ms | 284 kB | 3/3 | ±12 | 2,473 -1% | 24.4s |
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| Aug 28, 2026, 1:54 PM UTC | 94 | 2.80 s | 0 | 88 ms | 284 kB | 2/3 | ±0 | 2,498 0% | 48.8s |
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| Aug 20, 2026, 7:35 PM UTC | 95 | 2.72 s | 0 | 22 ms | 282 kB | 3/3 | ±6 | 3,876 +56% | 21.6s |
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<speedlify2-score speedlify-url="https://www.speedlify.dev/" url="https://cathydutton.co.uk/"></speedlify2-score>