mattlacey.com
Ranks Overall #192 Built Awesome #154
Data from Oct 4, 2026, 10:59 AM UTC old Measured once a week · 7 runs since Aug 21, 2026
Elsewhere:
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Tame the Bots ·
Scoring Calculator ·
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 | 793 ms good | ↑ +25 ms (+3.3%) 768 ms – 793 ms | |
| 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 | 0 ms good | → no change 0 ms – 0 ms | |
| FCP First Contentful Paint | 793 ms good | ↑ +25 ms (+3.3%) 768 ms – 793 ms | |
| Speed Index | 793 ms good | ↑ +25 ms (+3.3%) 768 ms – 793 ms | |
| TTFB Time to First Byte | 630 ms good | ↑ +27 ms (+4.5%) 603 ms – 630 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 | 5.7 kB | ↓ -237 B (-4%) 5.6 kB – 6.0 kB | |
| Requests | 4 | → no change 4 – 4 | |
| Third-party Weight | 0 B | → no change 0 B – 0 B | |
| Third-party CPU | 0 ms | → no change 0 ms – 0 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 |
|---|---|---|---|---|
| stylesheet | 38.8% | 2.2 kB | 2 | |
| other | 32.7% | 1.9 kB | 1 | |
| document | 28.5% | 1.6 kB | 1 | |
| Total | 5.7 kB | 4 |
Without JavaScript
The same load, photographed twice at 412×823: once with scripts disabled, once as rendered.
0% of pixels differ — they are identical. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 76 ms | ↓ -21 ms (-21.2%) 71 ms – 97 ms | |
| Long Tasks | 0 | → no change 0 – 0 | |
| DOM Elements | 66 | → no change 62 – 66 | |
| 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 | 60% | 46 ms | |
| style layout | 21% | 16 ms | |
| script evaluation | 9% | 7 ms | |
| paint composite render | 5% | 4 ms | |
| parse HTML | 4% | 3 ms | |
| script parse compile | 0% | 0 ms | |
| Total | 76 ms |
Axe violations axe-core 4.13.0, full rule set
0 violating nodes across 0 rules, 211 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
Hygiene
Measurement log
Every stored run for this URL, newest first.
| When | Scores | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took | Archive |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 4, 2026, 10:59 AM UTC | 100 | 793 ms | 0 | 0 ms | 5.7 kB | 3/3 | ±0 | 3,329 +34% | 21.3s |
|
|
| Sep 27, 2026, 6:20 AM UTC | 100 | 768 ms | 0 | 0 ms | 5.9 kB | 3/3 | ±0 | 2,472 -1% | 20.3s |
|
|
| Sep 20, 2026, 12:45 AM UTC | 100 | 769 ms | 0 | 0 ms | 5.7 kB | 3/3 | ±0 | 2,463 -1% | 20.7s |
|
|
| Sep 12, 2026, 11:49 PM UTC | 100 | 789 ms | 0 | 0 ms | 5.6 kB | 3/3 | ±0 | 2,911 +17% | 21.1s |
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| Sep 5, 2026, 8:08 PM UTC | 100 | 793 ms | 0 | 0 ms | 5.8 kB | 3/3 | ±0 | 2,461 -1% | 21.9s |
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|
| Aug 29, 2026, 7:46 PM UTC | 100 | 781 ms | 0 | 0 ms | 6.0 kB | 3/3 | ±0 | 3,030 +22% | 20.6s |
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|
| Aug 21, 2026, 4:37 AM UTC | 100 | 789 ms | 0 | 0 ms | 5.8 kB | 3/3 | ±0 | 4,254 +71% | 19.7s |
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Embed this score
Use this web component to show mattlacey.com'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://mattlacey.com/"></speedlify2-score>