how to block websites?

Question

Hello. How to block websites, not write to file hosts? (C#)

Answer 1

To prevent anything on a computer from visiting a site you pretty much are stuck with either:

1. Network Proxy
2. Network Driver (like peer guardian's approach, which is basically packet inspection)
3. You could try to add the site to the no-trusted zone on your computer, but I don't think chrome/ff/etc... pay attention to windows security zones.

Answer 2

OpenDNS.Com is just one of a myriad of ways you could go about blocking sites. See their solutions overview for more information.