Associating anonymized identifiers with addressable endpoints

A computer implemented method comprising:

• accessing an identifier graph that links address identifiers to user identifiers, wherein each address identifier is linked to one of a plurality of addressable endpoints and anonymizes in the identifier graph the linked addressable endpoint;
• receiving, from a user device, a first user identifier that identifies a user of the user device, the first user identifier transmitted based on an integration code included in a website accessed at the user device;
• determining that the first user identifier identifying the user of the user device is associated with a second user identifier included in the identifier graph;
• identifying an address identifier linked to the second user identifier in the identifier graph;
• adding the first user identifier to the identifier graph;
• generating a link in the identifier graph connecting the first user identifier to the address identifier;
• determining whether to transmit a message to the user associated with the first user identifier based on activity information associated with the first user identifier;
• and
• retrieving an addressable endpoint to which to transmit the message based on the address identifier linked to the first user identifier.

A computer readable storage medium comprising program code encoded thereon that, when executed by at least one processor, causes the processor to:

• access an identifier graph that links address identifiers to user identifiers, wherein each address identifier is linked to one of a plurality of addressable endpoints and anonymizes in the identifier graph the linked addressable endpoint;
• receive, from a user device, a first user identifier that identifies a user of the user device, the first user identifier transmitted based on an integration code included in a website accessed at the user device;
• determine that the first user identifier identifying the user of the user device is associated with a second user identifier included in the identifier graph;
• identify an address identifier linked to the second user identifier in the identifier graph;
• add the first user identifier to the identifier graph;
• generate a link in the identifier graph connecting the first user identifier to the address identifier;
• determine to transmit a message to the user associated with the first user identifier based on activity information associated with the first user identifier;
• and
• retrieve an addressable endpoint to which to transmit the message based on the address identifier linked to the first user identifier.