I think my ISP is [intercepting NXDOMAIN requests](http://code.google.com/speed/public-dns/faq.html#nxdomains). For instance, I type `http://foo.bar.baz.foobarbaz` into my address bar, and I am redirected to `http://wwwwe.web-help-service.net/search?qo=foo.bar.baz.foobarbaz&rn=ml4SKlzMtBy7nWK` instead.

I have set my Primary DNS address to Google Public DNS (8.8.8.8), but am still getting forwarded.

How can I test to be sure that I am correct?

What can I do?