caldays vs The Colony
Same instrument, two spec sheets — measured, not claimed.
caldays vs The Colony: common questions
Which is more reliable, caldays or The Colony?
Both are neck-and-neck — caldays and The Colony each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, caldays or The Colony?
caldays has the lower median latency in our checks — caldays responds in 149 ms versus The Colony at 567 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 The Colony need an API key?
caldays needs no key, while The Colony requires a free API key. If you want to start calling without signup, reach for caldays first.
Can I call caldays and The Colony from the browser?
Only caldays is browser-friendly — it returns CORS headers over HTTPS. The Colony needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are caldays and The Colony free for commercial use?
caldays has unclear commercial terms, and The Colony 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.