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Portscan vs UK Police

Same instrument, two spec sheets — measured, not claimed.

APIPortscanNEW—UK PoliceNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedOpen Government Licence v3.0
Free tierFree — limits not publishedFree — no key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Portscan vs UK Police: common questions

Which is more reliable, Portscan or UK Police?

On our scheduled checks, UK Police leads on measured uptime — Portscan at —% versus UK Police at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Portscan and UK Police need an API key?

Neither needs a paid key — Portscan is callable with no signup, and UK Police is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Portscan and UK Police from the browser?

Yes — both Portscan and UK Police send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Portscan and UK Police free for commercial use?

Portscan has unclear commercial terms, and UK Police allows commercial use on its free tier. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.