Traffic coming from SEO (Search Engine Optimization) is free, while traffic generated from PPC (Pay Per Click) ads is not free. PPC ads are displayed above organic search results or on the sidebar of search engine pages for search queries related to their topic. Landing page keywords, ad keywords, CPC (cost per click) bids, and targeting all influence how those ads are “served” or displayed on the page.
If, on the other hand, you’ve already migrated to HTTPS and are concerned about your users appearing to partner websites as direct traffic, you can implement the meta referrer tag. Cyrus Shepard has written about this on Moz before, so I won’t delve into it now. Suffice to say, it’s a way of telling browsers to pass some referrer data to non-secure sites, and can be implemented as a element or HTTP header.
You might remember “Face Off” , a movie from ‘97 where Nicolas Cage is a terrorist and John Travolta is an FBI agent. And, as it happens in movies, they became obsessed with one another. Travolta needs information from Cage’s brother, so he undergoes an operation in which he gets Cage’s face; a few plot twists later and Cage has Travolta’s. They continue to pursue each other with new identities, the bad guy the good guy, the good guy the bad guy and so on and (almost) no one knew who is who. Dizzy yet?
This is the number of views that you can test each month on your website.It's up to you how you choose to use them, either by allocating all the views to one test or to multiple test, either on one page or on multiple pages. If you have selected the 10.000 tested views plan and you run an experiment on your category page which is viewed 7000 times per month, then at the end of the month 7000 is what you'll be counted as tested views quota.