When you want to publish a SharePoint site as a public website, you must enable anonymous access – otherwise the user will be prompted with a login. Note: This is for on premises servers and not the cloud/Office365. Open Central Administration on your server. Go to the Application Management section and then click the “Manage web applications” link. …
![QuickTip: Enable Anonymous access in SharePoint 2013](https://usercontent.one/wp/sharepointbabe.com/wp-content/uploads/2015/04/defaultzone.png)