Apache is the most used web server on the Internet. This web server is available at all paid and free hosting for shared web hosting on Linux (which is the case for most hosting providers).
Apache is very complete and offers :
- SSL support (and HTTPS support)
- support of virtual hosts to host multiple sites on the same server
- support for IPv4 and IPv6
- support of the CGI for the execution of programs through a website
- several authentication systems (with the management of users and user groups)
- support of the url rewriting
- possibility to create a dynamic site by installing the PHP module
- and more.