Open Dog Registry vs RandomDuck

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

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

Open Dog Registry vs RandomDuck: common questions

Which is more reliable, Open Dog Registry or RandomDuck?

On our scheduled checks, RandomDuck leads on measured uptime — Open Dog Registry at —% versus RandomDuck 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 Open Dog Registry and RandomDuck need an API key?

RandomDuck needs no key, while Open Dog Registry requires a free API key. If you want to start calling without signup, reach for RandomDuck first.

Can I call Open Dog Registry and RandomDuck from the browser?

Only Open Dog Registry is browser-friendly — it returns CORS headers over HTTPS. RandomDuck needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Open Dog Registry and RandomDuck free for commercial use?

Open Dog Registry has unclear commercial terms, and RandomDuck 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.