You can also add the campaign name here such as facebook_offer or summer_sale or new_product_lineup or anything else for that matter. Be sure to separate the spaces with underscores. And, if you're placing ads on Google, YouTube or any other platform, and you're bidding for keywords, place the campaign terms in there, separated by plus signs such as best+running+shoes or best+mens+polo+shirts or anything else for that matter.
No, unfortunately we can not guarantee that the absolute safety of Google Adsense Traffic. This is because we have seen instances in which websites were penalized for receiving large bulks of traffic (and clicks) to their Google Adsense ads. Therefore, if you use it, we strongly recommend you to use it in moderation and in conjunction with other traffic sources. More information >>