How to check the earnings from Traffic Referral Program, has anyone earned anything from the same so far? Traffic Referral Program in HubPages... If you send traffic to any Hub, you’re entitled to either 9% or 12% of total impressions. You’ll receive 9% if the Hub you’ve referred people to already has impressions allocated to an Affiliate. If there is no Affiliate, you’ll receive 12% of the total impressions.