Cat Facts vs RandomDuck
Same instrument, two spec sheets — measured, not claimed.
Cat Facts vs RandomDuck: common questions
Which is more reliable, Cat Facts or RandomDuck?
Both are neck-and-neck — Cat Facts and RandomDuck each measure 99.44% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, Cat Facts or RandomDuck?
Cat Facts has the lower median latency in our checks — Cat Facts responds in 146 ms versus RandomDuck at 289 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 Cat Facts and RandomDuck need an API key?
Neither needs a paid key — Cat Facts is callable with no signup, and RandomDuck is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Cat Facts and RandomDuck from the browser?
Only Cat Facts 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 Cat Facts and RandomDuck free for commercial use?
Cat Facts 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.