Keen IO vs Noctua

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthapiKeynone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Keen IO vs Noctua: common questions

Which is more reliable, Keen IO or Noctua?

On our scheduled checks, Noctua leads on measured uptime — Keen IO at —% versus Noctua 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 Keen IO and Noctua need an API key?

Noctua needs no key, while Keen IO requires a free API key. If you want to start calling without signup, reach for Noctua first.

Can I call Keen IO and Noctua from the browser?

Neither sends browser-friendly CORS headers reliably, so call Keen IO and Noctua from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Keen IO and Noctua free for commercial use?

Keen IO has unclear commercial terms, and Noctua has unclear commercial terms. 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.