Administrative Divisions DB vs PostalCodes
Same instrument, two spec sheets — measured, not claimed.
Administrative Divisions DB vs PostalCodes: common questions
Which is more reliable, Administrative Divisions DB or PostalCodes?
On our scheduled checks, Administrative Divisions DB leads on measured uptime — Administrative Divisions DB at 100% versus PostalCodes at 99.02% 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, Administrative Divisions DB or PostalCodes?
Administrative Divisions DB has the lower median latency in our checks — Administrative Divisions DB responds in 40 ms versus PostalCodes at 1030 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 Administrative Divisions DB and PostalCodes need an API key?
Neither needs a paid key — Administrative Divisions DB is callable with no signup, and PostalCodes is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Administrative Divisions DB and PostalCodes from the browser?
Only Administrative Divisions DB is browser-friendly — it returns CORS headers over HTTPS. PostalCodes needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are Administrative Divisions DB and PostalCodes free for commercial use?
Administrative Divisions DB has unclear commercial terms, and PostalCodes 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.