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2. Reverse DNS lookup - Wikipedia

   en.wikipedia.org/wiki/Reverse_DNS_lookup

   In computer networks, a reverse DNS lookup or reverse DNS resolution (rDNS) is the querying technique of the Domain Name System (DNS) to determine the domain name associated with an IP address – the reverse of the usual "forward" DNS lookup of an IP address from a domain name. [1] The process of reverse resolving of an IP address uses PTR ...

3. Reverse lookup - Wikipedia

   en.wikipedia.org/wiki/Reverse_lookup

   Reverse lookup is a procedure of using a value to retrieve a unique key in an associative array. [1] Applications of reverse lookup include reverse DNS lookup, which provides the domain name associated with a particular IP address, [2] reverse telephone directory, which provides the name of the entity associated with a particular telephone ...

4. Tucows - Wikipedia

   en.wikipedia.org/wiki/Tucows

   In June 2006 Tucows paid $18 million to purchase Mailbank.com Inc, a company that owns over 17,000 domain names for common surnames, such as smith.net and brown.org. Mailbank generates income from ads on its websites (from domain parking) and also from customers who want e-mail accounts with their surname in the domain name.

5. AOL

   search.aol.com

   The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web. AOL ...

6. GeoCities - Wikipedia

   en.wikipedia.org/wiki/GeoCities

   GeoCities, was a web hosting service that allowed users to create and publish websites for free and to browse user-created websites by their theme or interest, active from 1994 to 2009. GeoCities was started in November 1994 by David Bohnett and John Rezner, and was named Beverly Hills Internet briefly before being renamed GeoCities. [ 1 ]

7. Domain Name System - Wikipedia

   en.wikipedia.org/wiki/Domain_Name_System

   A reverse DNS lookup is a query of the DNS for domain names when the IP address is known. Multiple domain names may be associated with an IP address. The DNS stores IP addresses in the form of domain names as specially formatted names in pointer (PTR) records within the infrastructure top-level domain arpa. For IPv4, the domain is in-addr.arpa ...