Working out what your viewers like lets you plan to continue to play to your successes.
Twitch includes a full suite of channel analytics and allows you to view a broad set of viewership data.
To access Twitchs channel analytics, you better go into the creator dashboard.
punch your profile picture, then Creator Dashboard.
Once in the creator dashboard, expand the Insights category in the left column, then press Channel Analytics.
The main graph can have its time period and headings changed so you might customise what data you see.
By looking at channels with common viewers you may gain some insights into how to improve your stream.
Which tags are users filtering by to find my channel shows you which tags users found your channel by.
The other boxes give you information about your stream.