[romland]

You can meet all standards (http's 404 error) and still have links on the error page.

[mmelin]

It sounds like Comcast is redirecting to a search page instead of returning NXDOMAIN for non-existing domain names. That is certainly not possible do to and at the same time be standards-compliant.

[kree10]

That's what they're doing, though only if the domain matches /^www\..+/ which (along with their allowing you to opt-out) makes it a few degrees less evil than Verisign's infamous "Site Finder".

[Dobbs]

No you do it on the browser level. Crome for example when you mistype a domain gives you a 404 page combined with a google search.