GeoApi vs PostcodeData.nl
Same instrument, two spec sheets — measured, not claimed.
GeoApi vs PostcodeData.nl: common questions
Which is more reliable, GeoApi or PostcodeData.nl?
On our scheduled checks, PostcodeData.nl leads on measured uptime — GeoApi at 97.1% versus PostcodeData.nl 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, GeoApi or PostcodeData.nl?
PostcodeData.nl has the lower median latency in our checks — GeoApi responds in 1016 ms versus PostcodeData.nl at 692 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 GeoApi and PostcodeData.nl need an API key?
Neither needs a paid key — GeoApi is callable with no signup, and PostcodeData.nl is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call GeoApi and PostcodeData.nl from the browser?
Only GeoApi is browser-friendly — it returns CORS headers over HTTPS. PostcodeData.nl needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are GeoApi and PostcodeData.nl free for commercial use?
GeoApi allows commercial use on its free tier, and PostcodeData.nl 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.