There are several ways the competitor can be reached via Dashboard.
1. Finding the way in the Product list
Open section Products. Identify the product you wold like to get in touch with =). Open the competitors list using +/-. Move the pointer to the drop down menu. Open target URL.
OR from the price
2. From the product card.
Press the Info sigh in the product title section. You will redirected to the product card.
or by clicking the product title, from the side menu
In new dashboard window, scroll down to the competitors list. Click the website title.