IPWhois vs Proweblook IP Checker
Same instrument, two spec sheets — measured, not claimed.
IPWhois vs Proweblook IP Checker: common questions
Which is more reliable, IPWhois or Proweblook IP Checker?
Both are neck-and-neck — IPWhois and Proweblook IP Checker 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, IPWhois or Proweblook IP Checker?
IPWhois has the lower median latency in our checks — IPWhois responds in 23 ms versus Proweblook IP Checker at 56 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 IPWhois and Proweblook IP Checker need an API key?
Both ask you to authenticate — IPWhois uses an API key and Proweblook IP Checker uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.
Can I call IPWhois and Proweblook IP Checker from the browser?
Only Proweblook IP Checker is browser-friendly — it returns CORS headers over HTTPS. IPWhois needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are IPWhois and Proweblook IP Checker free for commercial use?
IPWhois has unclear commercial terms, and Proweblook IP Checker 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.