By default, Plesk uses the Apache web server
(http://en.wikipedia.org/wiki/Apache_HTTP_Server) to deliver the pages
of your website to clients (such as browsers, through which visitors
access your website). To achieve better performance, Apache is
supplemented with another web server - nginx. You also have the option
to use nginx only.
Default web server settings are specified by the server administrator
(hosting provider). These settings determine how web servers process
various types of files, how they use SSL/TLS, where they store log
files, and so on.
However, you (as a website owner) can set up custom web server
settings for your website. For example, add a type of the index file,
restrict access to the site, and so on.
Note: You can adjust web server settings for your websites if your hosting
subscription provides the corresponding permission.
with