- 1). Go to a reverse lookup site such as IP Checking, Reverse DNS Lookup or iWebtool.
- 2). Type in the IP address you want to find out about into the text box on the site. Click "Lookup" or "Go," depending on the site.
- 3). View the domain name of the IP address you entered. The IP Checking site has the most detailed information, including the server location and Whois information.
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