ShieldsUP! — Internet Vulnerability Profiling
Your Internet connection's IP address is uniquely associated with the following "machine name": The string of text above is known as your Internet connection's "reverse DNS." The end of the string is probably a domain name related to your ISP. This will be common to all customers of this ISP. But the beginning of the string uniquely identifies your Internet connection. The question is: Is the beginning of the string an "account ID" that is uniquely and permanently tied to you, or is it merely related to your current public IP address and thus subject to change? The concern is that any web site can easily retrieve this unique "machine name" (just as we have) whenever you visit. If the machine name shown above is only a version of the IP address, then there is less cause for concern because the name will change as, when, and if your Internet IP changes. There is no standard governing the format of these machine names, so this is not something we can automatically determine for you.
Related: Internet Security Tools