NetworkCalc vs RSQ API
Same instrument, two spec sheets — measured, not claimed.
NetworkCalc vs RSQ API: common questions
Which is more reliable, NetworkCalc or RSQ API?
On our scheduled checks, RSQ API leads on measured uptime — NetworkCalc at 99.44% versus RSQ API 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, NetworkCalc or RSQ API?
RSQ API has the lower median latency in our checks — NetworkCalc responds in 289 ms versus RSQ API at 172 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 NetworkCalc and RSQ API need an API key?
Neither needs a paid key — NetworkCalc is callable with no signup, and RSQ API is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call NetworkCalc and RSQ API from the browser?
Only NetworkCalc is browser-friendly — it returns CORS headers over HTTPS. RSQ API needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are NetworkCalc and RSQ API free for commercial use?
NetworkCalc has unclear commercial terms, and RSQ API 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.