REST Countries vs Warnely
Same instrument, two spec sheets — measured, not claimed.
REST Countries vs Warnely: common questions
Which is more reliable, REST Countries or Warnely?
On our scheduled checks, REST Countries leads on measured uptime — REST Countries at 100% versus Warnely at 91.3% 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, REST Countries or Warnely?
REST Countries has the lower median latency in our checks — REST Countries responds in 328 ms versus Warnely at 333 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 REST Countries and Warnely need an API key?
Neither needs a paid key — REST Countries is callable with no signup, and Warnely is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call REST Countries and Warnely from the browser?
Only Warnely is browser-friendly — it returns CORS headers over HTTPS. REST Countries needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are REST Countries and Warnely free for commercial use?
REST Countries allows commercial use on its free tier, and Warnely 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.