Script-based techniques for coordinating content selection across devices

An electronic device comprising:

• one or more processors;
• and
• a computer-readable storage medium containing instructions, that, when executed by the one or more processors, cause the one or more processors to perform operation including:
• transmitting, from a user device and to a web server, a request for webpage content of a webpage;
• receiving, from the web server and at the user device, one or more response communications that includes the webpage content, embedded content, and a script;
• retrieving, from a locally stored data object of the user device, a device identifier initially generated by a remote system;
• detecting, using the script, whether at least part of the embedded content is being presented within a portion of the webpage that is displayed on a screen of the user device;
• and
• transmitting a report communication to a remote ID-graph system, the report communication including the device identifier and an indication as to whether the at least part of the embedded content has been presented within the portion of the webpage that was displayed on the screen of the user device.

A computer-readable storage medium containing instructions, that, when executed by the one or more processors, cause the one or more processors to perform operation including:

• transmitting, from a user device and to a web server, a request for webpage content of a webpage;
• receiving, from the web server and at the user device, one or more response communications that includes the webpage content, embedded content, and a script;
• retrieving, from a locally stored data object of the user device, a device identifier initially generated by a remote system;
• detecting, using the script, whether at least part of the embedded content is being presented within a portion of the webpage that is displayed on a screen of the user device;
• and
• transmitting a report communication to a remote ID-graph system, the report communication including the device identifier and an indication as to whether the at least part of the embedded content has been presented within the portion of the webpage that was displayed on the screen of the user device.