1、https://ipinfo.io/
curl ipinfo.io
2、https://ip.cn/
curl ip.cn
3、http://www.cip.cc/
curl cip.cc
4、http://myip.ipip.net/
curl myip.ipip.net
5、http://ifconfig.me/
curl ifconfig.me
6、http://members.3322.org/dyndns/getip
curl members.3322.org/dyndns/getip