To ensure that all of the subdomains are also allowed/blocked properly, remove the “www” from domains you enter in your “Blacklist/Whitelist” list.
- Log into your account at netgear.opendns.com, click on Account Settings, then select “Blacklist/Whitelist.”
- Add the domain you wish to blacklist and whitelist to the “Always block” and ”Never Block,” respectively.
- Flush your local and web browser cache afterwards:
Local/Computer DNS Resolver Cache Flushing: http://www.opendns.com/support/article/68
Web Browser Cache Flushing: http://www.opendns.com/support/article/67