Users are finding and visiting your website from a variety of different places, including search engine results and social media. Which section within Reports in Google Analytics can give you insight into where your users are coming from before visiting your website?
Explanation:
The Acquisition reports provide information about where your traffic originates (e.g., google, baidu, bing), the methods by which users arrive at your site or app (e.g., organic, cpc, email), and the marketing efforts you use to drive traffic (e.g., campaign, creative format, keywords).
Access the Acquisition reports
To access the Acquisition reports, click Reports > Acquisition in the left navigation. If you don’t see the reports, an administrator may have removed them from the navigation.
Read more here: https://support.google.com/analytics/answer/10999979