Recently, Comcast has added a "Domain Helper" to its DNS servers. Now, instead of implementing the DNS protocol as specified in the RFC, Comcast will redirect your query to a Comcast-branded Yahoo! search page, using the text of your DNS query as search input to Yahoo. Never mind that this breaks the Internet ... there are ads to be served!
This service is reminiscent of Verisign's SiteFinder service from ~2003, about which much hubbub is preserved in the MemeStreams archive. (See below.)
Comcast customers can opt out of Domain Helper:
When a non-existent web address is typed into a browser, a built-in error message is displayed. The Comcast's Domain Helper service is designed to help guide you to a useful search page that has a list of recommended sites that come close to matching the original web address that did not exist.
If you are a residential or commercial cable modem subscriber, and you wish to opt-out of the Comcast Domain Helper service, please complete the form below.
At the end of this process they inform you that it may take two days for the opt-out procedure to be completed. Meanwhile, enjoy the broken DNS!
From the archive, a small selection on SiteFinder:
VeriSign has dropped all its lawsuits against internet overseeing organization ICANN, agreed to hand over ownership of the root zone, and in return been awarded control of all dotcoms until 2012.
The Omniture server sets a cookie so that people can be watched over time to see what typos they are making.
The dispute over who controls key portions of the Internet's address system erupted into open conflict today when VeriSign Inc., the world's largest addressing company, sued the Internet's most visible regulatory body, charging that it has been unfairly prevented from developing new services for Internet users.
We all rely on them [DNS servers], and their management should be done in a way appropriate for their status.
Omniture is now tracking hits to every nonexistent .com/.net domain thanks to Verisign.
Comcast Domain Helper Opt-Out