mail.tm vs Nager.Date
Same instrument, two spec sheets — measured, not claimed.
mail.tm vs Nager.Date: common questions
Which is more reliable, mail.tm or Nager.Date?
On our scheduled checks, Nager.Date leads on measured uptime — mail.tm at 84.3% versus Nager.Date at 100% 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, mail.tm or Nager.Date?
Nager.Date has the lower median latency in our checks — mail.tm responds in 709 ms versus Nager.Date at 58 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 mail.tm and Nager.Date need an API key?
Neither needs a paid key — mail.tm is callable with no signup, and Nager.Date is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call mail.tm and Nager.Date from the browser?
Only Nager.Date is browser-friendly — it returns CORS headers over HTTPS. mail.tm needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are mail.tm and Nager.Date free for commercial use?
mail.tm has unclear commercial terms, and Nager.Date 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.