NXDOMAIN?
December 27th, 2009 · No Comments
Who would buy non-existent DNS names? Well, it should
come as no surprise that in a world where there is already a
large and valuable market for selling DNS names that are not
Internet-visible as service endpoints, there is also a
valuable market in identifying yet more names that users are
using in their applications that are not even visible to the
DNS. There is value in catching the NXDOMAIN responses from
a DNS resolver and substituting a page impression. There is
value in the so-called practice of "typosquatting".
Tags: IPv6