1、纯真IP数据库
旧版 go语言：https://github.com/kayon/iploc
旧版 php语言：https://github.com/itbdw/ip-database
新版请参考官网 需要携带key 解密 https://www.cz88.net/help?id=free
2、MaxMind GeoLite2 databases.
go 语言：https://github.com/shanhubei/tools_go
文档:https://dev.maxmind.com/geoip/updating-databases/
3、IPIP.net的数据库
https://github.com/zhuzhichao/ip-location-zh
4、其它：
https://github.com/lionsoul2014/ip2region
微信公众号
手机浏览(小程序)
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