| (?i)\b(https?:\/\/|ftp:\/\/|www\.|[^\s:=]+@www\.)?((\w+)\.)+(?:com|au\.uk|co\.in|net|org|info|coop|int|co\.uk|org\.uk|ac\.uk|uk)([\.\/][^\s]*)*([^(w|\d)]|$) | |
| (?i)\b((https?:\/\/|ftp:\/\/|sftp:\/\/|www\.|[^\s:=]+@www\.))(?:\S+(?::\S*)?@)?(?:(?!10(?:\.\d{1,3}){3})(?!127(?:\.\d{1,3}){3})(?!169\.254(?:\.\d{1,3}){2})(?!192\.168(?:\.\d{1,3}){2})(?!172\.(?:1[6-9]|2\d|3[0-1])(?:\.\d{1,3}){2})(?:[1-9]\d?|1\d\d|2[01]\d|22[0-3])(?:\.(?:1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.(?:[1-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(?:(?:[a-z\d]+-[a-z\d])*[a-z\d]+)(?:\.(?:[a-z\d]+-?)*[a-z\d]+)*(?:\.(?:[a-z]{2,})))(?::\d{2,5})?(?:\/[^\s]*)?([^(w|\d)]|$) | |