regex (1)


How to extract domain from URL

You want to extract a domain from URL. The list of URLs to support might be as below. For this list you expect the domain sub.domain.com : sub.domain.com/folder?p1=v1 www.sub.domain.com/folder?p1=v1 http://sub.domain.com/folder?p1=v1 https://sub.domain.com/folder?p1=v1 https://www.sub.domain.com/folder?p1=v1 For this list you expect the domain domain.com: domain.com/folder?p1=v1 www.domain.com/folder?p1=v1 http://domain.com/folder?p1=v1 https://domain.com/folder?p1=v1 https://www.domain.com/folder?p1=v1 For this list you expect the domain sub.sub.domain.com: sub.sub.domain.com/folder?p1=v1 www.sub.sub.domain.com/folder?p1=v1 http://sub.sub.domain.com/folder?p1=v1 https://sub.sub.domain.com/folder?p1=v1 […]