Yes, we have things in place for both email clicks/opens as well as web page visits. If you see specific activity you think is not real, please file a support ticket so we can look into it and determine if additional IPs should be added to our list.
Hi Rebecca, I have the same thing happening to a campaign I sent out today - the click was recorded before the email was delivered. Additionally, I'm not seeing a "visit webpage" activity after the link was clicked (and there should be). I'm going to use that as a filter in lead scoring, but just the fact that all these spam filter bot clicks are factoring into the overall email performance is going to skew things a bit.
Here's a more detailed explanation of the whole spam filter registering email clicks ordeal: Spam filters registering clicks?