Creating a domain name check

Question

I wonder how to do domain name verification (accessibility testing) for top-level domains?

Eg. to check if a domain is available: stackoverflow.com or stackoverflow.dk or not.

Do I need to subscribe to a service to do this, or is there some kind of simple magic behind such a test?

thank

Answer 1

You need to do a WHOIS search - see http://www.aspdev.org/articles/build-whois-lookup-asp.net/

Answer 2

, " " . , .de . , .

Answer 3

The best thing would be to create an object webRequestto hide the whois request. You can then parse the results from HTML using a regular expression. I have done this several times and it works well (assuming the underlying website is not changing)

Answer 4

useful customer support client http://www.whoislookup.be/wswhois/wswhois.asmx

Referance

http://www.whoislookup.be/using-an-webservice-to-access-whois-search.aspx