Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer-readable storage medium, for presenting content associated with a landing page. A method includes: receiving a request for content to be published along with third party content in a resource; identifying a content item responsive to the request, the content item including a link to a landing page and an indicator for designating the content item as a swappable content item, wherein a swappable content item enables navigation away from the resource to the landing page without losing state of the resource, the content item being configured to monitor interactions of the user and inhibit a direct loading of a landing page in favor of a simultaneous presentation of the content of the landing page in a container having an overlay that includes the resource; and providing the content item including the indicator responsive to the request.