Editing Web server (section)

=== Operating conditions ===
There are many '''operating conditions that can affect the performances''' of a web server; performance values may vary depending on (i.e.):
* the settings of web server (including the fact that log file is or is not enabled, etc.);
* the HTTP version used by client requests;
* the average HTTP request type (method, length of HTTP headers and optional body);
* whether the requested content is static or dynamic;
* whether the content is [[web cache|cached]] or not cached (by server and/or by client);
* whether the content is [[HTTP compression|compressed]] on the fly (when transferred), pre-compressed (i.e. when a file resource is stored on disk already compressed so that web server can send that file directly to the network with the only indication that its content is compressed) or not compressed at all;
* whether the connections are or are not encrypted;
* the average [[network speed]] between web server and its clients;
* the number of active [[Transmission control protocol|TCP]] connections;
* the number of active processes managed by web server (including external CGI, SCGI, FCGI programs);
* the [[Computer hardware|hardware]] and [[Computer software|software]] limitations or settings of the [[Operating system|OS]] of the computer(s) on which the web server runs;
* other minor conditions.