the internet via a browser 150 a operating on the one or more devices 100 a the devices 100 a for example may connect to a publisher web site 200 a an ad server web site 250 a and or an advertiser web site via the browser 150 a in this particular example a rendering engine executing on rendering server 450 a provides a placeholder tag in the browser 150 a of one or more of the devices 100 a first party information cookie or other data elements if present at the device 100 a e g in browser 150 a are identified and provided to an ad server 400 a the ad server 400 a accesses memory cache server 250 a or other data storage device such as a database disc storage or the like to match one or more elements of the first party information and a unique or semi unique browser fingerprint detail the memory cache server 250 a and or the ad server 400 a identify and or selects two or more identifiers such as a user identifier an alternate user identifier e g a browser fingerprint and or a registration information identifier to use to identify one or more advertisements.