Inside the Adsense email was a screenshot of my site that highlighted what Adsense thinks is above the fold. What Adsense says is above the fold isn't what I thought was above the fold.
I'm not posting a screenshot of my site but I will show an example of what Adsense thinks "Above the Fold" is on my Index page (see example layout below).
The green part in the layout example below is the only part that Adsense says is above the fold, even though my header (not <head>) is above the fold.
I have no idea If Google is running their SERPs based on this Adsense email/screenshot showing me what Adsense says is above the fold?
I just found it interesting that Adsense isn't counting my header as being part of the "Above the fold" area on the page.
Anyone else get that email from Adsense, If so, is Adsense discounting your Index page header in the screenshot of your site?