Original sentence: While this behavior is similar to VeriSign's previous Site Finder, OpenDNS states that it is not the same, as OpenDNS is purely an opt-in service (compared to Site Finder's affect on the entire Internet, as VeriSign is a authoritative registry operator) and that the advertising revenue pays for the customized DNS service
Edited sentence: While this behavior is similar to VeriSign's previous Site Finder, OpenDNS claims that it is not the same, as OpenDNS is purely an opt-in service (compared to Site Finder's affect on the entire Internet, as VeriSign is a authoritative registry operator) and that the advertising revenue pays for the customized DNS service