These settings allow site owners to:
- Restrict access to the site by username and password – only system
users will be able to access the site (Anonymous access). Denying
anonymous access may be useful if your site is not intended for any
visitor, for example, it is a web application for internal use. Note
that FTP users and additional FTP users created in Plesk will have
access to such a site if they were granted access to the site’s
directory. - Force all clients (such as browsers or FTP clients) to use the secure
HTTPS protocol to access their site (Require SSL/TLS). You need
this option, for example, if the site contains and transmits personal
information.