Thank you for your comments both of you. I am just a marketing/client
service person who has very little knowledge of analytics and tagging.
Does the "Referrer overwrite" have to be done in the ad server side,
back-end of the website, or analytics? Our team has an access to the
ad-server but the website and the analytics are managed by other
parties. Apology in advance if I sound like a fool.
Our company placed display banner ads to online publications. We served
the ads using Google Campaign Manager and provided the tags for the
publishers to implement the tags to their site. When I checked the
Analytics, almost 96% of the traffic from banner ads were from referral,
specifically s0.2mdn.net. I have no idea why. Does anyone know? Thanks!