You can track the Vine reviews for your enrolled products:
In Seller Central, select Advertising, then click Amazon Vine.
Search for an SKU or ASIN in the Vine dashboard.
In the Vine Reviews tab, you can see the number of Vine reviews submitted by Vine Voices. If you click this number, you will be redirected to the product reviews page where you will be able to identify Vine reviews by the tag “Amazon Vine Review of a Free Product”.