Geocode.xyz vs PostcodeData.nl
Same instrument, two spec sheets — measured, not claimed.
Geocode.xyz vs PostcodeData.nl: common questions
Which is more reliable, Geocode.xyz or PostcodeData.nl?
Both are neck-and-neck — Geocode.xyz and PostcodeData.nl 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, Geocode.xyz or PostcodeData.nl?
Geocode.xyz has the lower median latency in our checks — Geocode.xyz responds in 386 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 Geocode.xyz and PostcodeData.nl need an API key?
Neither needs a paid key — Geocode.xyz 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 Geocode.xyz and PostcodeData.nl from the browser?
Only Geocode.xyz 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 Geocode.xyz and PostcodeData.nl free for commercial use?
Geocode.xyz has unclear commercial terms, 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.