
The phrase above the fold, or ATF, refers to the part of a web page’s content that users see before their first scroll. In 2012, by launching the Page Layout algorithm, Google lowered the rankings of websites that used a lot of advertising in that space. The above-the-fold area is defined the same way whether the website opens on desktop or on mobile.
Try to place fewer ads in the top part of the page so you do not run into problems from an SEO point of view.
