vq_utm_medium

A parameter that is passed in when someone views a site that tells the medium they used to get on the website. It is used to track the effectiveness of different mediums in driving traffic to a website.

vq_utm_source

A parameter that is passed in when someone views a site that tells the source of how they go on the website. It is used to track the effectiveness of different sources in driving traffic to a website.

vqa_vid

A randomly generated unique identifier and tracks that identifier. It is used to distinguish one visitor on the same IP from another.