aaron-gustafson.com
https://www.aaron-gustafson.com/
Ranks Overall #328 Built Awesome #259
Data from Oct 5, 2026, 1:46 AM UTC old Measured once a week · 7 runs since Aug 21, 2026
Elsewhere:
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Calibre ·
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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 | 1.52 s good | ↑ +502 ms (+49.4%) 925 ms – 1.53 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 | 0 ms good | → no change 0 ms – 0 ms | |
| FCP First Contentful Paint | 903 ms good | ↓ -113 ms (-11.1%) significant 903 ms – 1.02 s | |
| Speed Index | 903 ms good | ↓ -113 ms (-11.1%) significant 903 ms – 1.02 s | |
| TTFB Time to First Byte | 603 ms good | ↓ -104 ms (-14.7%) significant 603 ms – 707 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 | 47.6 kB | ↓ -831 B (-1.7%) 47.1 kB – 48.5 kB | |
| Requests | 8 | ↓ -1 (-11.1%) significant 8 – 9 | |
| Third-party Weight | 1.4 kB | ↓ -613 B (-30.4%) significant 1.1 kB – 2.0 kB | |
| Third-party CPU | 1 ms | ↓ -0 ms (-14.3%) 1 ms – 1 ms | |
| Unused JS | 0 B | → no change 0 B – 0 B | |
| Unused CSS | 13.0 kB | ↑ +99 B (+0.8%) 12.9 kB – 13.0 kB |
By resource type
| Type | Transfer | Share | Size | Requests |
|---|---|---|---|---|
| stylesheet | 34.8% | 16.6 kB | 1 | |
| other | 32% | 15.3 kB | 3 | |
| document | 23.2% | 11.1 kB | 1 | |
| script | 9.9% | 4.7 kB | 3 | |
| Total | 47.6 kB | 8 |
Third parties 1 entities
| Entity | Transfer | Size | Main thread Simulated |
|---|---|---|---|
| Unpkg | 1.4 kB | 1 ms | |
| Total | 1.4 kB | 1 ms |
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 191 ms | ↓ -28 ms (-12.6%) 165 ms – 313 ms | |
| Long Tasks | 0 | → no change 0 – 0 | |
| DOM Elements | 200 | ↑ +6 (+3.1%) 194 – 200 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 0 | → no change 0 – 0 | |
| A11y Failures | 1 | → no change 1 – 1 | |
| A11y Failing Nodes | 1 | → no change 1 – 1 |
Main thread work
| Task | Time | Share | Duration Simulated |
|---|---|---|---|
| other | 42% | 81 ms | |
| style layout | 31% | 60 ms | |
| script evaluation | 13% | 25 ms | |
| parse HTML | 6% | 12 ms | |
| paint composite render | 5% | 9 ms | |
| script parse compile | 2% | 4 ms | |
| Total | 191 ms |
Axe violations axe-core 4.13.0, full rule set
0 violating nodes across 0 rules, 418 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
Accessibility failures 1 of 26 audits
-
color-contrast— Background and foreground colors do not have a sufficient contrast ratio. 1 node
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 |
|---|---|---|---|---|---|
| 2026-05-23 → 2026-09-26 | No data — 19 weeks under the CrUX reporting threshold | ||||
| 2026-05-16 | 1.15 s | — | 0 | 1.11 s | 721 ms |
| 2026-05-09 | 1.13 s | — | 0 | 1.11 s | — |
| 2026-05-02 | 1.13 s | — | 0 | 1.09 s | — |
| 2026-04-11 → 2026-04-25 | No data — 3 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 5, 2026, 1:46 AM UTC | 100 | 1.52 s | 0 | 0 ms | 47.6 kB | 3/3 | ±0 | 2,933 +18% | 20.3s |
|
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| Sep 27, 2026, 11:49 PM UTC | 100 | 1.02 s | 0 | 0 ms | 48.5 kB | 3/3 | ±0 | 3,073 +24% | 20.1s |
|
|
| Sep 20, 2026, 8:47 PM UTC | 100 | 926 ms | 0 | 0 ms | 47.6 kB | 3/3 | ±5 | 4,304 +73% | 20.2s |
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| Sep 13, 2026, 8:29 PM UTC | 100 | 929 ms | 0 | 0 ms | 47.3 kB | 3/3 | ±0 | 3,280 +32% | 21.3s |
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| Sep 6, 2026, 7:02 PM UTC | 100 | 1.52 s | 0 | 0 ms | 47.1 kB | 3/3 | ±0 | 2,266 -9% | 22.7s |
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| Aug 30, 2026, 6:03 PM UTC | 100 | 925 ms | 0 | 0 ms | 47.7 kB | 3/3 | ±0 | 2,335 -6% | 21.5s |
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| Aug 21, 2026, 10:36 AM UTC | 100 | 1.53 s | 0 | 0 ms | 47.6 kB | 3/3 | ±0 | 2,489 0% | 22s |
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Embed this score
Use this web component to show aaron-gustafson.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://www.aaron-gustafson.com/"></speedlify2-score>