Hi, thank you for submitting your question to Google Answers, I hope I
can provide the information you are seeking.
There are a lot of places you can look up URLs (the www.xxx.com) and
find who they are registered to.
These locations are called WhoIS services and the accuracy and quality
can change from month to month so I have included a link to a number
of sites, a link which will be updated periodically to reflect new
For most listings you will see both an owner and a technical service
contact, including mailing addresses and a phone number.
There is a very good chance that this information is accurate unless
you are trying to locate a spammer or other criminal, in which case,
you will probably get fake information.
You will find a complete directory of WhoIS sites at groups.google.com
There are dozens of sites so I won?t list them all but one or two from
near the top of the list should be all you need to try.
Many will require you to enter some proof that you are not an
automated service trying to take advantage of their services but that
is no problem for actual people using the sites.
There are also several databases of ?deleted? URLs.
Google search term: deleted domain names
http://www.whois.net/ is a good place to start.
http://www.deleteddomains.com/ is another site.
This site even includes traffic numbers
In addition, there is a great place to go to see what was on most Web
sites, even ones which have otherwise disappeared.
Go to www.archive.org and enter the URL. This database is attempting
to store all Web pages, including those from now disappeared sites and
even the old versions of current sites.
Sometimes there is valuable contact information right in the site
pages and archive.org lets you look at a history of the site.
There are literally billions of pages archived there.
If you are looking for a URL service, I have tried a number and am
very happy to keep my 35 URLs registered with www.buydomains.com
They normally have about 400,000 sites available for sale as well as
offering new site registration and hosting.
I don't get any benefit from you using that service I just wanted to
pass along my good experience with them.
Thank you again for turning to Google Answers for your research needs.