((https?|ftp|news):\/\/)?([a-z0-9\\-]*[\\.。])+(aero|arpa|biz|com|coop|edu|gov|info|int|jobs|mil|museum|name|nato|net|org|pro|travel|cn|cc|co|cv)

查找顶级域名正则:
(?i)^https?://(?:\w+\.)*?(\w*\.(?:com\.cn|cn|com|net|cc|aero|arpa|biz|coop|edu|gov|info|int|jobs|mil|museum|name|nato|org|pro|travel|co|cv))[\\\/]*

转载请说明出处:第六感博客 原文链接: