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