[teitoklien]

Amazon has a pretty big advertising platform too , I think they’ll try to spread this header on all the websites that use their ad platform.

So they might be trialing it this way because of that, to help boost their ad platform and hinder floc , so that google cannot drop third party cookies that easily , as floc’s on browser processing makes google the defacto judge on what information do they add into floc identifiers and what they do not , meanwhile themselves getting all the unrestricted data from their browsers separately.

By hindering mass scale adoption of floc , they’re trying to delay dropping of third party cookies , to slow down google from getting an advantage over them.

Atleast that’s what I think , they might be testing it for other reasons, only an Amazon exec can answer it specifically.