caldays vs Himalayas
Same instrument, two spec sheets — measured, not claimed.
caldays vs Himalayas: common questions
Which is more reliable, caldays or Himalayas?
On our scheduled checks, caldays leads on measured uptime — caldays at 100% versus Himalayas at 99.02% 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, caldays or Himalayas?
caldays has the lower median latency in our checks — caldays responds in 149 ms versus Himalayas at 262 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 caldays and Himalayas need an API key?
Neither needs a paid key — caldays is callable with no signup, and Himalayas is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call caldays and Himalayas from the browser?
Only caldays is browser-friendly — it returns CORS headers over HTTPS. Himalayas needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are caldays and Himalayas free for commercial use?
caldays has unclear commercial terms, and Himalayas 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.