Abstract: A third party company (also referred to as an ad server) provides an advertiser with computer code to place on the advertiser's web pages. The web page's code is configured to provide the ad server read and write access to an advertiser's first party cookie on a user's web browser. A user interacts with an ad on a mobile application or third party web page. Based on the user's interaction with the ad a URL containing a web address and ad instance information are sent to the user's web browser. The user's landing page associated with the URL contains code for retrieving the ad instance information and storing it in a first party cookie. When the user navigates to a purchasing page and purchases a product, the code contained in the purchasing page retrieves the ad instance information from the first party cookie and sends it to the ad server.

Abstract: A third party company (also referred to as an ad server) provides an advertiser with computer code to place on the advertiser's web pages. The web page's code is configured to provide the ad server read and write access to an advertiser's first party cookie on a user's web browser. A user interacts with an ad on a mobile application or third party web page. Based on the user's interaction with the ad a URL containing a web address and ad instance information are sent to the user's web browser. The user's landing page associated with the URL contains code for retrieving the ad instance information and storing it in a first party cookie. When the user navigates to a purchasing page and purchases a product, the code contained in the purchasing page retrieves the ad instance information from the first party cookie and sends it to the ad server.

Abstract: An ad server provides an advertiser with computer code to include in advertisement (ad) instances. Upon interaction with one of the ad instances, the computer code determines if a mobile software application associated with an advertiser is installed on a mobile device. The ad server may also provide mobile application developers with a software development kit (SDK) for use in creating mobile applications capable of determining if a mobile software application associated with the advertiser is installed on a mobile device, retrieving usage information associated with the user's use of the mobile device, receiving ad instances for display to a user through the mobile software application, and communicating this information to the ad server. Based on the installation status and the usage information the ad server selects ad instances to serve to the user of the mobile device.

Abstract: A third party company (also referred to as an ad server) provides an advertiser with computer code to place on the advertiser's web pages. The web page's code is configured to provide the ad server read and write access to an advertiser's first party cookie on a user's web browser. A user interacts with an ad on a mobile application or third party web page. Based on the user's interaction with the ad a URL containing a web address and ad instance information are sent to the user's web browser. The user's landing page associated with the URL contains code for retrieving the ad instance information and storing it in a first party cookie. When the user navigates to a purchasing page and purchases a product, the code contained in the purchasing page retrieves the ad instance information from the first party cookie and sends it to the ad server.