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IPGEO vs OpenPLZ API

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

APIIPGEOHEALTHY76OpenPLZ APIHEALTHY94
Uptime · 30d
Uptime · 90d99.02%99.02%
Uptime · 30d98.3%98.3%
P50 · ms266561
P95 · ms2083903
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

IPGEO vs OpenPLZ API: common questions

Which is more reliable, IPGEO or OpenPLZ API?

Both are neck-and-neck — IPGEO and OpenPLZ API each measure 99.02% 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, IPGEO or OpenPLZ API?

IPGEO has the lower median latency in our checks — IPGEO responds in 266 ms versus OpenPLZ API at 561 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 IPGEO and OpenPLZ API need an API key?

Neither needs a paid key — IPGEO is callable with no signup, and OpenPLZ API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call IPGEO and OpenPLZ API from the browser?

Yes — both IPGEO and OpenPLZ API 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 IPGEO and OpenPLZ API free for commercial use?

IPGEO has unclear commercial terms, and OpenPLZ 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.