What are some reasons why sites like LLNW create a CNAME record for Omniture requests (e.g. metrics.limelightnetworks.com instead of limelightnetworks.122.2o7.net)?
I've found a post that seems to suggest that it's intended to circumvent 3rd-party-cookie settings. Are there any other pros/cons to this approach? From a performance perspective, does this not create an additional DNS request from the client? Also, doesn't Omniture include a P3P header (compact privacy policty) that allows 3rd party cookies to be accepted by IE's default 'Medium' privacy setting?