域名查询whois
之前就搞过类似的东西。最近练python。就写了个批量查询域名是否注册的程序。
whois server list：
https://www.nirsoft.net/whois-servers.txt
https://github.com/whois-server-list/whois-server-list
https://github.com/rfc1036/whois/blob/next/tld_serv_list
当然最权威的还是iana.org
https://www.iana.org/domains/root/db
等等放到github上去。
