It might be interesting to see what your YouTube channel looks like to other users. In doing so, you can check if the channel art, profile picture, video thumbnails, social media buttons, and links are properly displayed. Here are the steps to view your YouTube channel as someone else.
View Your Channel As a Returning Subscriber or New Visitor
Sign in to YouTube, click on the Menu button (3 horizontal bars) > My Channel:
Click on the View as menu displayed next to your username:
You can either choose to browse your channel as a New visitor or as a Returning subscriber: