Link And Domain Extractor: Retrieve links and e-mail from a remote Web page

This class can be used to extract links and e-mail addresses from a remote Web page.

It retrieves a Web page from a given remote site and parses it to extract the URLs of all the links and e-mail address found in the page.

The class can also check if a link exists in the page with given URL, get the list of domains found in the page links, and check if there is a link in the page with a given domain.