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About KUSANAGI

About the Ultra-fast CMS platform ”KUSANAGI”

Ultra-fast CMS platform "KUSANAGI" developed and provided by Prime Strategy is a Linux based tuned server OS (Virual Machine Image) that runs WordPress and other CMS fast and securely.

"KUSANAGI 8" based on CentOS 7 and "KUSANAGI 9" based on CentOS Stream / AlmaLinux OS are available.

What is KUSANAGI?

Developed by Prime Strategy, KUSANAGI is an ultra-fast virtual machine that runs CMS such as WordPress fast and securely.

1.High Performance (Fast and Resilient)

Standard environmentKUSANAGI 9KUSANAGI 8
Admin dashboard
(without caching)
120 times faster20 times faster
Normal pages
(with caching)
12,330 times faster2,150 times faster

KUSANAGI 9

KUSANAGI 9 achieves more than 25,000 concurrent requests per second (HTTP) when using page cache and more than 210 concurrent requests per second (both HTTP and HTTPS) when not using page cache in a typical cloud environment (*3).

Compared to the standard LAMP environment (*2), the speedup is approximately 2,330 times faster when page cache is used, and approximately 20 times faster when page cache is not used.

KUSANAGI 8

KUSANAGI 8 can handle more than 23,000 concurrent requests per second (HTTP) in a typical cloud environment (*1) when using page caching. Even when page caching is not used, such as on the administration screen, it achieves more than 200 concurrent requests per second (both HTTP and HTTPS).

Compared to the standard LAMP environment (*2), the speed is approximately 2,150 times faster when page cache is used. Even when page cache is not used, the speedup is approximately 20 times faster.

*1: Microsoft Azure Standard D4as_v4 instance (2.35Ghz AMD EPYC 7452 processor 4 vCPU, 16GiB), Premium SSD LRS, East Japan Region, KUSANAGI 8.5.9-7, PHP 7.4.27, Nginx 1.21.4, MariaDB 10.3.32, WordPress 5.8.2

*2: Microsoft Azure Standard D4as_v4 instance (2.35Ghz AMD EPYC 7452 processor 4 vCPU, 16GiB), Premium SSD LRS, East Japan Region, CentOS 7.9.2009, PHP 5.6.40, Apache 2.4.6, MariaDB 5.5.68, WordPress 5.8.2

*3: Microsoft Azure Standard D4as_v4 instance (2.35Ghz AMD EPYC 7452 processor 4 vCPU, 16GiB), Premium SSD LRS, East Japan Region, KUSANAGI 9.1.0-1, PHP 7.4.27, Nginx 1.21.4, MariaDB 10.5.13, WordPress 5.8.2

2. Highly Enhanced Security

Almost all security functions that are essential for business are implemented as default, assuming that they will be used in enterprise Web systems such as companies and universities.

Platforms where KUSANAGI are available


As of (May 2024), KUSANAGI is available in 37 countries and 216 regions, on 29 major platforms internationally, and has had a cumulative 80,000 deployments thus far.(as of October 2023)

Platforms where KUSANAGI is available

KUSANAGI Virtual Machine Stack

KUSANAGI is a tuned server OS that runs WordPress and other CMS fast and securely.

KUSANAGI Virtual Machine Stack
KUSANAGI Virtual Machine Stack

Standard Features of KUSANAGI

Easy to build environment with commands

You can ealisy build WordPress, other supported CMS and LAMP/LEMP environments with commands.

In addition, since the middleware version can be selected, you can build an environment of your choice, including a combination of stable operation and the latest version.

WordPress plugins for KUSANAGI included

In the WordPress environment, WordPress plugins for KUSANAGI allow you to configure settings such as the traslation accelerator, page caching and other acceleration features, automatic WordPress updates, string replacements, etc.

Documents : KUSANAGI standard features

Security

In addition to middleware normally required for websites and web systems, KUSANAGI comes with the following configurations out-of-the-box to facilitate the introduction of security-related middleware and systems.

Linux Security

KUSANAGI 8

  • WAF
  • IPS/IDS
  • SELinux support
  • TLS 1.3 support
  • Disable TLS 1.1 and below
  • Vulnerability scanning tools
  • DoS attack protection

KUSANAGI 9

  • WAF
  • SELinux support
  • TLS 1.3 support
  • Disable TLS 1.1 and below
  • DoS attack protection

Automatic WordPress update

KUSANAGI is equipped with an automatic update function that can be operated on the WordPress administration screen, and various settings can be configured for each of the following functions.

  • Enable or diable automatic update
  • Automatic update for plugins
  • Automatic update for themes
  • Automatic update for WordPress core
  • Scheduling for automatic update

Updating KUSANAGI

KUSANAGI's RPM package is provided by the developer, Prime Strategy, so that the latest middleware is always available. KUSANAGI itself is updated more than dozens of times per year, including module updates to address issues and vulnerabilities, as well as to add new functions (the number of updates varies each year).

Update Information

KUSANAGI Editions

There are three different edition of KUSANAGI to choose from, depending on your web site/system scale.

  • Free Edition
  • Business Edition
  • Premium Edition

See KUSANAGI Editions for more details.

Awards

Innovative Services

KUSANAGI wins "Innovative Service Special Award" at the "Going-Global Innovations Competition" hosted by Tokyo Metropolitan Government.

Going-Global Innovations Competition

Forefront of Providing Cloud Solutions Amd Impacting APAC Industry

Selected as "Top 10 Cloud Solution Companies – 2021" and "Company of the Year" by APAC CIO Outlook magazine.

Prime Strategy: Standardizing User Environment across Multiple Cloud Systems

Web Acceleration Engine

WEXAL® Page Speed Technology®” on KUSANAGI Premium Edition is an “acceleration engine” for web systems.
It improves Core Web Vitals and PageSpeed Insight scores and enhances UX (user experience).