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Colombia Public API vs PostcodeData.nl

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

APIColombia Public APIHEALTHY89PostcodeData.nlHEALTHY91
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms840692
P95 · ms30061989
Authnonenone
CORSyesyes
HTTPSyesno
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

Colombia Public API vs PostcodeData.nl: common questions

Which is more reliable, Colombia Public API or PostcodeData.nl?

Both are neck-and-neck — Colombia Public API 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, Colombia Public API or PostcodeData.nl?

PostcodeData.nl has the lower median latency in our checks — Colombia Public API responds in 840 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 Colombia Public API and PostcodeData.nl need an API key?

Neither needs a paid key — Colombia Public API 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 Colombia Public API and PostcodeData.nl from the browser?

Only Colombia Public API 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 Colombia Public API and PostcodeData.nl free for commercial use?

Colombia Public API 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.