frontendweekly.tokyo
Ranks Overall #179 Built Awesome #145
Data from Oct 3, 2026, 8:38 PM UTC old Measured once a week · 7 runs since Aug 20, 2026
Elsewhere:
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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 | 855 ms good | ↑ +12 ms (+1.4%) 816 ms – 887 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 | 855 ms good | ↑ +12 ms (+1.4%) 816 ms – 887 ms | |
| Speed Index | 855 ms good | ↑ +12 ms (+1.4%) 816 ms – 887 ms | |
| TTFB Time to First Byte | 631 ms good | ↑ +12 ms (+1.9%) 604 ms – 632 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 | 9.7 kB | ↓ -31 B (-0.3%) 7.7 kB – 9.9 kB | |
| Requests | 2 | → no change 2 – 2 | |
| 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 |
|---|---|---|---|---|
| document | 100% | 7.7 kB | 1 | |
| Total | 9.7 kB | 2 |
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 | 190 ms | ↓ -17 ms (-8%) 160 ms – 263 ms | |
| Long Tasks | 1 | → no change 0 – 1 | |
| DOM Elements | 131 | → no change 131 – 131 | |
| 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 |
|---|---|---|---|
| style layout | 54% | 104 ms | |
| other | 31% | 60 ms | |
| script evaluation | 6% | 11 ms | |
| parse HTML | 5% | 9 ms | |
| paint composite render | 3% | 6 ms | |
| script parse compile | 1% | 1 ms | |
| Total | 190 ms |
Axe violations axe-core 4.13.0, full rule set
0 violating nodes across 0 rules, 226 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 3, 2026, 8:38 PM UTC | 100 | 855 ms | 0 | 0 ms | 9.7 kB | 3/3 | ±0 | 2,650 +7% | 21.7s |
|
|
| Sep 26, 2026, 6:21 PM UTC | 100 | 843 ms | 0 | 0 ms | 9.8 kB | 3/3 | ±0 | 2,759 +11% | 21.3s |
|
|
| Sep 19, 2026, 4:15 PM UTC | 100 | 838 ms | 0 | 0 ms | 9.9 kB | 3/3 | ±0 | 3,162 +27% | 21.2s |
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|
| Sep 12, 2026, 3:03 PM UTC | 100 | 887 ms | 0 | 0 ms | 9.7 kB | 3/3 | ±0 | 2,600 +5% | 23s |
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|
| Sep 5, 2026, 12:24 PM UTC | 100 | 854 ms | 0 | 0 ms | 7.7 kB | 3/3 | ±0 | 2,253 -9% | 21.3s |
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| Aug 29, 2026, 12:21 PM UTC | 100 | 852 ms | 0 | 0 ms | 9.9 kB | 3/3 | ±0 | 2,291 -8% | 21.2s |
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| Aug 20, 2026, 10:35 PM UTC | 100 | 816 ms | 0 | 0 ms | 9.8 kB | 3/3 | ±7 | 2,392 -4% | 22.8s |
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Embed this score
Use this web component to show frontendweekly.tokyo'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://frontendweekly.tokyo/"></speedlify2-score>