参考：https://cn.resellerclub.com/sites/default/files/rc-mailer/2-11%e5%9c%a8%e4%bb%80%e4%b9%88%e6%83%85%e5%86%b5%e4%b8%8b%e8%bd%ac%e5%85%a5%e4%bc%9a%e6%8d%9f%e5%a4%b1%e7%bb%ad%e8%b4%b9%e5%b9%b4%e9%99%90.pdf
参考：https://busy.im/post/recently-renewed-domain-transfer/
计算：https://whoisdog.com/tool/date-difference-calculator/