blog.jonathanlau.io
Ranks Overall #814 Built Awesome #601
Data from Oct 3, 2026, 1:46 AM UTC old Measured once a week · 7 runs since Aug 20, 2026
Elsewhere:
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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 | 1.24 s good | ↓ -735 ms (-37.3%) 1.04 s – 2.02 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 | 830 ms good | ↑ +48 ms (+6.1%) 782 ms – 1.04 s | |
| Speed Index | 830 ms good | ↑ +48 ms (+6.1%) 782 ms – 1.04 s | |
| TTFB Time to First Byte | 635 ms good | ↑ +25 ms (+4.1%) 610 ms – 826 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 | 75.6 kB | ↑ +47 B (+0.1%) 75.6 kB – 76.3 kB | |
| Requests | 10 | → no change 10 – 10 | |
| 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 |
|---|---|---|---|---|
| font | 78.9% | 59.6 kB | 2 | |
| document | 10.5% | 7.9 kB | 1 | |
| other | 3.9% | 2.9 kB | 2 | |
| image | 3.7% | 2.8 kB | 3 | |
| script | 3.1% | 2.3 kB | 2 | |
| Total | 75.6 kB | 10 |
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 231 ms | ↓ -8 ms (-3.5%) 230 ms – 299 ms | |
| Long Tasks | 0 | → no change 0 – 0 | |
| DOM Elements | 137 | → no change 137 – 137 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 1 | → no change 1 – 1 | |
| A11y Failures | 1 | → no change 1 – 1 | |
| A11y Failing Nodes | 2 | → no change 2 – 2 |
Main thread work
| Task | Time | Share | Duration Simulated |
|---|---|---|---|
| other | 40% | 93 ms | |
| style layout | 36% | 83 ms | |
| script evaluation | 12% | 28 ms | |
| parse HTML | 7% | 16 ms | |
| paint composite render | 4% | 9 ms | |
| script parse compile | 1% | 2 ms | |
| Total | 231 ms |
Axe violations axe-core 4.13.0, full rule set
1 violating node across 1 rule, 270 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
-
minor
image-redundant-alt— Alternative text of images should not be repeated as text 1 nodeOffending element
-
img[alt="rss"]<img alt="rss" crossorigin="" height="15" src="/img/rss.svg" width="15">
-
Accessibility failures 1 of 14 audits
-
target-size— Touch targets do not have sufficient size or spacing. 2 nodes
Best Practices failures 1 of 18 audits
-
errors-in-console— Browser errors were logged to the console 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 3, 2026, 1:46 AM UTC | 100 | 1.24 s | 0 | 0 ms | 75.6 kB | 3/3 | ±8 | 2,819 +13% | 22.4s |
|
|
| Sep 25, 2026, 11:15 AM UTC | 99 | 1.97 s | 0 | 0 ms | 75.6 kB | 3/3 | ±8 | 2,508 +1% | 22s |
|
|
| Sep 18, 2026, 8:47 AM UTC | 100 | 1.25 s | 0 | 0 ms | 75.8 kB | 3/3 | ±11 | 2,556 +3% | 22.6s |
|
|
| Sep 11, 2026, 8:37 AM UTC | 99 | 2.02 s | 0 | 0 ms | 75.9 kB | 3/3 | ±31 | 2,628 +6% | 23.6s |
|
|
| Sep 4, 2026, 5:36 AM UTC | 99 | 2.02 s | 0 | 0 ms | 76.0 kB | 3/3 | ±9 | 2,836 +14% | 22.5s |
|
|
| Aug 28, 2026, 1:16 AM UTC | 100 | 1.25 s | 0 | 0 ms | 75.8 kB | 3/3 | ±14 | 2,447 -2% | 22.9s |
|
|
| Aug 20, 2026, 3:52 PM UTC | 100 | 1.04 s | 0 | 0 ms | 76.3 kB | 3/3 | ±1 | 2,344 -6% | 21.8s |
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