GeoIP-db vs US ZipCode
Same instrument, two spec sheets — measured, not claimed.
GeoIP-db vs US ZipCode: common questions
Which is more reliable, GeoIP-db or US ZipCode?
On our scheduled checks, US ZipCode leads on measured uptime — GeoIP-db at —% versus US ZipCode at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Do GeoIP-db and US ZipCode need an API key?
GeoIP-db needs no key, while US ZipCode requires a free API key. If you want to start calling without signup, reach for GeoIP-db first.
Can I call GeoIP-db and US ZipCode from the browser?
Yes — both GeoIP-db and US ZipCode 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 GeoIP-db and US ZipCode free for commercial use?
GeoIP-db has unclear commercial terms, and US ZipCode 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.