Cataas vs RandomFox
Same instrument, two spec sheets — measured, not claimed.
Cataas vs RandomFox: common questions
Which is more reliable, Cataas or RandomFox?
On our scheduled checks, Cataas leads on measured uptime — Cataas at 100% versus RandomFox at 97.1% 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 RandomFox?
Cataas has the lower median latency in our checks — Cataas responds in 601 ms versus RandomFox at 672 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 RandomFox need an API key?
Neither needs a paid key — Cataas is callable with no signup, and RandomFox is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Cataas and RandomFox from the browser?
Yes — both Cataas and RandomFox 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 Cataas and RandomFox free for commercial use?
Cataas has unclear commercial terms, and RandomFox 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.