So I am building an Amazon affiliate site and I have an EMD of my main keyword, let's call it besttennisshoes.com. Now every post is targeting a specific long tail of this main keyword, for instance best tennis shoes for seniors, best tennis shoes for children, ...You get the point. My question is, which URL structure should I be using: - besttennisshoes.com/best-tennis-shoes-for-seniors OR - besttenisshoes.com/seniors I fear that the first option might be overoptimized (contains main keyword twice), but I don't know how if Google would count the main keyword in the EMD? Anyone having experience with this? Thanks in advance for your input.