Can I add custom click references to my referral links?
You can add a custom click reference to your referral links to help you to identify where your referral traffic is coming from. Just add &click_ref=XXXX to your referral link, where XXXX can be any alpha-numeric string up to 20 characters in length.
e.g. http://www.imutual.co.uk/?ref=450&click_ref=mylink1
The reference will be displayed on your referral traffic report