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