In optimizing your website for it to be more visible to your target audience, it's important to first understand the channels where you are getting the most traction from.

You can start by checking your site's most visited landing pages, including the mediums that they are able to constantly get new visitors from.

Behavior > Site Content > Landing Pages > and on the "Second Dimension" tab choose Traffic Sources > Medium:

Determining which sites have referred the most engaged traffic to your website is another data set that you'll have to consider checking (referring sites with low bounce rates, high visit duration and high percentage of new visits).

Acquisition > All Referrals: