flag.london
Ranks Overall #831 Astro Showcase #47
Data from Oct 2, 2026, 6:54 AM UTC old Measured once a month · 1 run since Oct 2, 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 | 2.44 s good | — 2.44 s – 2.44 s | |
| INP CWV Interaction to Next Paint — field only, no lab run can measure it | n/a | — | |
| CLS CWV (estimate) Cumulative Layout Shift | 0.008 good | — 0.008 – 0.008 | |
| TBT Total Blocking Time | 183 ms good | — 183 ms – 183 ms | |
| FCP First Contentful Paint | 2.44 s needs work | — 2.44 s – 2.44 s | |
| Speed Index | 2.88 s good | — 2.88 s – 2.88 s | |
| TTFB Time to First Byte | 886 ms needs work | — 886 ms – 886 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 | 1.28 MB | — 1.28 MB – 1.28 MB | |
| Requests | 60 | — 60 – 60 | |
| Third-party Weight | 212 kB | — 212 kB – 212 kB | |
| Third-party CPU | 135 ms | — 135 ms – 135 ms | |
| Unused JS | 109 kB | — 109 kB – 109 kB | |
| Unused CSS | 0 B | — 0 B – 0 B |
By resource type
| Type | Transfer | Share | Size | Requests |
|---|---|---|---|---|
| media | 46.9% | 598 kB | 3 | |
| image | 33.6% | 428 kB | 38 | |
| script | 16.9% | 215 kB | 11 | |
| document | 1.1% | 14.0 kB | 1 | |
| font | 1% | 12.9 kB | 1 | |
| stylesheet | 0.4% | 5.0 kB | 3 | |
| other | 0.1% | 1.7 kB | 3 | |
| Total | 1.28 MB | 60 |
Third parties 2 entities
| Entity | Transfer | Size | Main thread Simulated |
|---|---|---|---|
| posthog.com | 198 kB | 135 ms | |
| Adobe TypeKit | 13.9 kB | 0 ms | |
| Total | 212 kB | 135 ms |
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 2.12 s | — 2.12 s – 2.12 s | |
| Long Tasks | 3 | — 3 – 3 | |
| DOM Elements | 421 | — 421 – 421 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 1 | — 1 – 1 | |
| A11y Failures | 0 | — 0 – 0 | |
| A11y Failing Nodes | 0 | — 0 – 0 |
Main thread work
| Task | Time | Share | Duration Simulated |
|---|---|---|---|
| script evaluation | 35% | 748 ms | |
| other | 29% | 625 ms | |
| paint composite render | 18% | 382 ms | |
| style layout | 12% | 264 ms | |
| script parse compile | 3% | 62 ms | |
| parse HTML | 2% | 39 ms | |
| Total | 2.12 s |
Axe violations axe-core 4.13.0, full rule set
1 violating node across 1 rule, 814 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
-
moderate
region— All page content should be contained by landmarks 1 nodeOffending element
-
.mx-auto<img class="mx-auto mb-4 mt-8 block w-10" src="/icons/favicon.svg" alt="Flag of London">
-
Best Practices failures 1 of 19 audits
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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 2, 2026, 6:54 AM UTC | 91 | 2.44 s | 0.008 | 183 ms | 1.28 MB | 3/3 | ±3 | 2,497 0% | 30.4s |
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