⚡ Web Server Modules in Japan

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.

Japan is an East Asian country with a population of around 125 million people.

According to our data, web server modules are used on 5.5% of websites from Japan.

⭐ Most Popular in 2026

The following chart shows the top web server modules in Japan in 2026, based on market share.

The most popular is OpenSSL, which dominates the market with a substantial 56.4% share.
It is followed by PageSpeed with 21.8% and WebDAV with 19.8%.

🚀 Highlights

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

✨ Best Web Server Modules

Below is a more detailed list of 18 web server modules used on sites from Japan, ranked by their market share.

RankNameMarket share
1
OpenSSL
Newark, Delaware, United States

An open-source software library that provides strong encryption using the SSL and TLS protocols.
2
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.
3
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.

FreeOpen source
4
mod_fcgid
Wilmington, Delaware, United States

A FastCGI module for the Apache HTTP Server.

FreeOpen source
5
mod_ssl
Wilmington, Delaware, United States

Provides SSL v3 and TLS v1.x support for the Apache HTTP Server.

FreeOpen source
6
mod_aclr2
Lafayette, Colorado, United States

An Apache web server module that automates serving static content with NGINX as a reverse proxy.

FreeOpen source
7
mod_perl
Wilmington, Delaware, United States

A module for the Apache web server that embeds a Perl interpreter into the server.

FreeOpen source
8
mod_wsgi

An Apache module that implements a WSGI compliant interface for hosting Python based web applications on top of the Apache web server.
9
mod_bwlimited
Houston, Texas, United States

A CPanel module that allows limiting and monitoring of bandwidth and connection speed.
10
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.

FreeOpen source
11
mod_python
Wilmington, Delaware, United States

An Apache web server module that embeds the Python interpreter within the server, allowing Python code to run many times faster than traditional CGI by executing inside persistent Apache processes.

FreeOpen source
12
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.
13
mod_qos

A quality of service module for the Apache web server that implements configurable control mechanisms to prioritize and manage HTTP requests to preserve server resources under load.

FreeOpen source
14
mod_apreq2
Wilmington, Delaware, United States

An Apache HTTP Server filter module that connects the libapreq2 request parsing library into the server.

FreeOpen source
15
LibreSSL
Edmonton, Alberta, Canada

A fork of OpenSSL 1.0.1g developed to modernize the codebase and improve security.
16
JRun
17
Swoole
Shanghai, China

A high-performance PHP extension that enhances the language with asynchronous I/O, coroutines, and advanced concurrency capabilities.

FreeOpen source
18
mod_log_rotate

👉 See Also

Data is based on the analysis of 157,183 websites from Japan.
Statistics were last calculated on .
For details, see our methodology and disclaimer.