The libmaxminddb library provides a C library for reading MaxMind DB files, including the GeoIP2 databases from MaxMind. This is a custom binary format designed to facilitate fast lookups of IP addresses while allowing for great flexibility in the type of data associated with an {address.

The} MaxMind DB format is an open format. The spec is available at http://maxmind.github.io/MaxMind-DB/. This spec is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported {License.

See} http://dev.maxmind.com/ for more details about MaxMind's GeoIP2 {products.
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WWW: https://maxmind.github.io/libmaxminddb/
