Looking up the IP Address of a domain name (A Record)

Internet Periscope enables you to find the IP addresses associated with a domain name using DNS. When we look up the address of a domain name, we look up the "A Record" of that domain name.

To bring up the DNS Tool, click on the "Tools" menu, move your mouse over the "DNS" menu item, and click on "DNS Query...", as shown in the figure.
Tools menu

In this example, we want to find out the IP address for www.fun.com. From the IP address, we can find the ISP of www.fun.com using Whois.

The user enters "www.fun.com" into the query string text box. Note that the "Address (A) Record" radio button is selected. She then clicks on the "Send Query" button.
A Record button

After a few moments, the DNS Results dialog appears, telling us that the IP address for www.fun.com is
DNS Results Dialog

InternetPeriscope also allows you to find the contact information for a domain.

Also see Finding out which ISP owns an IP address.

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