Placement positions value 4 means Header

When to send it

Value 4 marks a slot in the header region: a top banner in an app or a leaderboard in a site's masthead. It was added in OpenRTB 2.1 together with 5 to 7 to describe app layouts, and the AdCOM list no longer restricts it to apps. Send it in Banner.pos.

Buyers treat header slots as visible at load but brief, since they scroll away on most pages. A header that sticks to the top of the viewport is better described as 2 (Locked), and a header slot is almost always above the fold, which makes 1 a competing choice. Decide whether your buyers care more about layout or visibility, then use the same value for every header slot.

Example

{
  "imp": [
    {
      "banner": {
        "pos": 4
      }
    }
  ]
}

Fields that carry it

• imp.banner.pos
• imp.video.pos

Other values in placement positions

The placement positions list page explains the whole list and its common mistakes.