Cataas vs Open Dog Registry
Same instrument, two spec sheets — measured, not claimed.
Cataas vs Open Dog Registry: common questions
Which is more reliable, Cataas or Open Dog Registry?
On our scheduled checks, Cataas leads on measured uptime — Cataas at 100% versus Open Dog Registry at 41.2% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, Cataas or Open Dog Registry?
Cataas has the lower median latency in our checks — Cataas responds in 601 ms versus Open Dog Registry at 2963 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do Cataas and Open Dog Registry need an API key?
Cataas needs no key, while Open Dog Registry requires a free API key. If you want to start calling without signup, reach for Cataas first.
Can I call Cataas and Open Dog Registry from the browser?
Only Cataas is browser-friendly — it returns CORS headers over HTTPS. Open Dog Registry needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are Cataas and Open Dog Registry free for commercial use?
Cataas has unclear commercial terms, and Open Dog Registry 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.