See What Your Guest Users See

To take the guesswork out of your community’s security design, you can see what your Lightning community looks like to visitors who haven’t logged in. Previously, when you previewed a community, you were viewing it as an authenticated user, so it was difficult to know exactly what guest users could see.

Where: This change applies to Lightning communities accessed through Lightning Experience and Salesforce Classic in Essentials, Enterprise, Performance, Unlimited, and Developer editions.

How: After you click the Preview button in Community Builder, click View as | Guest User to open the community in a new browser tab and view it as a guest user. Now, as long your community includes one public page (such as the Home page), you can use the Guest User option to preview your community.Preview as a Guest User