⚡ Web Server Modules in the Czech Republic

Web server modules are software components that extend the functionality of a web server by providing features such as authentication, caching, load balancing, URL rewriting, and security enhancements.

According to our data, web server modules are used on 2.6% of websites from the Czech Republic.

⭐ Most Popular in 2025

The following chart shows the top web server modules in the Czech Republic in 2025, based on market share.

The most popular is OpenSSL, which dominates the market with an overwhelming 88.1% share.
It is followed by mod_fcgid with 19.4% and PageSpeed with 9.2%.

OpenSSL 88.1%
mod_fcgid 19.4%
PageSpeed 9.2%
mod_ssl 7.3%
WebDAV 3.6%
mod_qos 3.2%
mod_wsgi 2.8%
mod_perl 2.7%
mod_python 1.7%
mod_aclr2 1.4%
mod_fastcgi 0.8%
mod_jk 0.4%
mod_gzip 0.4%
mod_bwlimited 0.1%

🚀 Highlights

Here is a list of the top modules that are more popular in the Czech Republic than worldwide.
Differences between global and country rankings are shown in parentheses.

2. mod_fcgid ^(-1)
4. mod_ssl ^(-2)
6. mod_qos ^(-9)
7. mod_wsgi ^(-3)
9. mod_python ^(-2)
11. mod_fastcgi ^(-1)
13. mod_gzip ^(-3)
15. mod_throttle ^(-5)

✨ Best Web Server Modules

Below is a more detailed list of all web server modules used on sites from the Czech Republic, ranked by their market share.

Rank	Name	Market share
1	OpenSSL Newark, Delaware, United States An open source software library that provides strong encryption using the SSL and TLS protocols.	88.1%
2	mod_fcgid Wilmington, Delaware, United States A FastCGI module for the Apache HTTP Server.	19.4%
3	PageSpeed Mountain View, California, United States An open-source web server module for rewriting web pages to reduce latency and bandwidth, available for Apache and Nginx.	9.2%
4	mod_ssl Wilmington, Delaware, United States Provides SSL v3 and TLS v1.x support for the Apache HTTP Server.	7.3%
5	WebDAV Wilmington, Delaware, United States The WebDAV (Web-based Distributed Authoring and Versioning) module allows users to collaboratively edit and manage files on remote web servers.	3.6%
6	mod_qos	3.2%
7	mod_wsgi An Apache module that implements a WSGI compliant interface for hosting Python based web applications on top of the Apache web server.	2.8%
8	mod_perl Wilmington, Delaware, United States A module for the Apache web server that embeds a Perl interpreter into the server.	2.7%
9	mod_python	1.7%
10	mod_aclr2 Wilmington, Delaware, United States	1.4%
11	mod_fastcgi A third-party module for the Apache web server that enables the FastCGI protocol for communicating with applications that generate dynamic content for web pages.	0.8%
12	mod_jk Wilmington, Delaware, United States A module designed to forward requests from Apache to the Tomcat web server to run Java-based web applications.	0.4%
13	mod_gzip	0.4%
14	mod_bwlimited Houston, Texas, United States A CPanel module that allows limiting and monitoring of bandwidth and connection speed.	0.1%
15	mod_throttle An Apache module specifically designed to reduce server load by controlling and limiting requests according to supported polices.	0.1%

👉 See Also

🌎 Web Server Modules in other countries

Data is based on the analysis of 30,222 websites from the Czech Republic.
Statistics were last calculated on December 28, 2025.
For details, see our methodology and disclaimer.