Global Web Server Extensions Usage Statistics and Market Share
We are tracking usage statistics and market share of 13 web technologies in Web Server Extensions. In March 2025 the most popular web technology in Web Server Extensions is OpenSSL with 65% market share. In second place there is Google PageSpeed with 14% market share. After that there are mod_ssl with 8%, mod_dav with 3% and mod_perl with 3% market share. Top 5 web technologies together have 92% market share. The remaining 8 web technologies in Web Server Extensions have a combined market share of 8%.
About Web Server Extensions
Web Server Extensions are software modules that run inside web server and provide additional functionality.
We are tracking 13 different technologies in Web Server Extensions.
There are 2,056,732 websites using Web Server Extensions in out database.
Web Server Extensions Usage Statistics and Market Share in March 2025
#1 OpenSSL 
64.97%
#2 Google PageSpeed 
13.65%
#3 mod_ssl 
8.28%
#4 mod_dav 
3.33%
#5 mod_perl 
2.64%
#6 mod_python 
1.76%
#7 Engintron 
1.70%
#8 mod_jk 1.49%
#9 mod_fastcgi 0.91%
#10 mod_wsgi 
0.90%
#11 mod_rails 
0.13%
#12 mod_rack 0.13%
#13 mod_auth_pam 0.12%
Technologies in Web Server Extensions
OpenSSL
OpenSSL is a software library for applications that secure communications over computer networks against eavesdropping or need to identify the party at the other end. It is widely used by Internet servers, including the majority of HTTPS websites.
Google PageSpeed
Google PageSpeed is a tool that analyzes the content of a web page, then generates suggestions to make that page faster.
mod_ssl
mod_ssl is an open-source extension for the Apache HTTP server that enables it to support SSL/TLS encryption, providing secure communication between the server and clients. It integrates with OpenSSL to handle secure connections, authentication, and key management for encrypted web traffic.
mod_dav
mod_dav is an Apache HTTP Server module that enables it to support WebDAV protocols, allowing clients to perform collaborative editing and management of resources on the server. It supports features like versioning, access control, and locking, facilitating shared web content editing and synchronization.
mod_perl
mod_perl 2 is an Apache module that integrates the Perl programming language with the Apache HTTP server, allowing server-side Perl scripts to be executed directly within the server process, thereby improving performance and enabling dynamic web content generation. It provides a high-performance environment for serving web applications and is widely used in the development of web applications.
mod_python
mod_python is an Apache server module that integrates Python with the web server, allowing Python to be used as a server-side scripting language to handle HTTP requests and generate dynamic content. It enables developers to write web applications using Python, and provides a seamless interface between the Python interpreter and the Apache server.
Engintron
Engintron is an open-source web server extension framework that enables developers to easily add custom functionalities and enhancements to web servers, enhancing their performance, security, and flexibility. It provides a simple API for integrating various web server modules, making it easy to create and deploy custom web server solutions.
mod_jk
mod_jk is an Apache HTTP Server module that enables it to communicate with Tomcat, a popular Java Servlet container, allowing for the seamless integration of Java applications with web servers. It facilitates the distribution of load and enhances the performance of web applications by efficiently passing requests between Apache and Tomcat.
mod_fastcgi
mod_fastcgi is an Apache module that allows running external FastCGI applications as part of an HTTP response. It enables better performance and resource management compared to traditional CGI by maintaining a persistent connection. This module is commonly used for handling dynamic content in web applications.
mod_wsgi
mod_wsgi is an Apache module that provides a WSGI compliance server for running Python web applications. It enables seamless integration between Apache and Python, allowing for efficient and scalable deployment of Python web applications. mod_wsgi acts as a bridge, translating requests from Apache to Python and vice versa, ensuring optimal performance and compatibility with various web frameworks.
mod_rails
mod_rails is an Apache module that integrates Ruby on Rails applications with Apache web server, enabling seamless deployment and management of Ruby applications. It abstracts away the complexity of running Rails by handling processes, load balancing, and resource management.
mod_rack
mod_rack is an Apache module that enables Apache to serve Rack-based Ruby web applications, such as those built with Ruby on Rails, Sinatra, or other frameworks. It acts as a reverse proxy, routing requests to the appropriate application and handling the communication between the web server and the application server.
mod_auth_pam
mod_auth_pam is an Apache module that enables authentication using Pluggable Authentication Modules (PAM) for Apache HTTP Server. It allows server administrators to utilize existing authentication mechanisms and policies defined in PAM configurations to secure web applications. This integration simplifies the process of securing web services by leveraging established authentication methods.
Web Server Extensions Market Share History in Last 12 Months
| Technology | May 2024 | June 2024 | July 2024 | August 2024 | September 2024 | October 2024 | November 2024 | December 2024 | January 2025 | February 2025 | March 2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| OpenSSL | 64.42% | 64.42% | 64.43% | 64.53% | 64.57% | 64.60% | 64.59% | 64.86% | 65.00% | 64.99% | 64.97% |
| Google PageSpeed | 13.55% | 13.55% | 13.56% | 13.51% | 13.48% | 13.47% | 13.44% | 13.50% | 13.53% | 13.60% | 13.65% |
| mod_ssl | 8.84% | 8.85% | 8.81% | 8.71% | 8.68% | 8.65% | 8.66% | 8.47% | 8.35% | 8.30% | 8.28% |
| mod_dav | 3.52% | 3.52% | 3.51% | 3.51% | 3.50% | 3.50% | 3.50% | 3.39% | 3.35% | 3.34% | 3.33% |
| mod_perl | 2.70% | 2.69% | 2.69% | 2.69% | 2.69% | 2.70% | 2.70% | 2.68% | 2.65% | 2.64% | 2.64% |
| mod_python | 1.81% | 1.81% | 1.81% | 1.81% | 1.82% | 1.82% | 1.83% | 1.81% | 1.77% | 1.77% | 1.76% |
| Engintron | 1.49% | 1.49% | 1.51% | 1.54% | 1.56% | 1.57% | 1.59% | 1.60% | 1.64% | 1.68% | 1.70% |
| mod_jk | 1.45% | 1.45% | 1.45% | 1.50% | 1.50% | 1.50% | 1.49% | 1.50% | 1.50% | 1.49% | 1.49% |
| mod_fastcgi | 0.94% | 0.94% | 0.94% | 0.93% | 0.93% | 0.93% | 0.93% | 0.93% | 0.92% | 0.91% | 0.91% |
| mod_wsgi | 0.90% | 0.90% | 0.90% | 0.90% | 0.90% | 0.90% | 0.90% | 0.90% | 0.90% | 0.90% | 0.90% |
| mod_rails | 0.13% | 0.13% | 0.13% | 0.13% | 0.13% | 0.13% | 0.13% | 0.13% | 0.13% | 0.13% | 0.13% |
| mod_rack | 0.13% | 0.13% | 0.13% | 0.13% | 0.13% | 0.13% | 0.13% | 0.13% | 0.13% | 0.13% | 0.13% |
| mod_auth_pam | 0.11% | 0.11% | 0.11% | 0.11% | 0.11% | 0.11% | 0.11% | 0.12% | 0.12% | 0.12% | 0.12% |