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ipapi.com vs Proweblook IP Checker

Same instrument, two spec sheets — measured, not claimed.

APIipapi.comHEALTHY96Proweblook IP CheckerREACHABLE100
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms30156
P95 · ms1575232
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ipapi.com vs Proweblook IP Checker: common questions

Which is more reliable, ipapi.com or Proweblook IP Checker?

Both are neck-and-neck — ipapi.com 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, ipapi.com or Proweblook IP Checker?

Proweblook IP Checker has the lower median latency in our checks — ipapi.com responds in 301 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 ipapi.com and Proweblook IP Checker need an API key?

Both ask you to authenticate — ipapi.com 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 ipapi.com and Proweblook IP Checker from the browser?

Only Proweblook IP Checker is browser-friendly — it returns CORS headers over HTTPS. ipapi.com needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are ipapi.com and Proweblook IP Checker free for commercial use?

ipapi.com 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.