IP Address API vs Proweblook IP Checker
Same instrument, two spec sheets — measured, not claimed.
IP Address API vs Proweblook IP Checker: common questions
Which is more reliable, IP Address API or Proweblook IP Checker?
Both are neck-and-neck — IP Address API 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, IP Address API or Proweblook IP Checker?
Proweblook IP Checker has the lower median latency in our checks — IP Address API responds in 513 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 IP Address API and Proweblook IP Checker need an API key?
IP Address API needs no key, while Proweblook IP Checker requires a free API key. If you want to start calling without signup, reach for IP Address API first.
Can I call IP Address API and Proweblook IP Checker from the browser?
Yes — both IP Address API and Proweblook IP Checker send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are IP Address API and Proweblook IP Checker free for commercial use?
IP Address API 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.