caldays vs Disify
Same instrument, two spec sheets — measured, not claimed.
caldays vs Disify: common questions
Which is more reliable, caldays or Disify?
On our scheduled checks, caldays leads on measured uptime — caldays at 100% versus Disify at 42.2% 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 Disify?
caldays has the lower median latency in our checks — caldays responds in 149 ms versus Disify at 1075 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 Disify need an API key?
Neither needs a paid key — caldays is callable with no signup, and Disify is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call caldays and Disify from the browser?
Only caldays is browser-friendly — it returns CORS headers over HTTPS. Disify needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are caldays and Disify free for commercial use?
caldays has unclear commercial terms, and Disify 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.