The Ultra-fast CMS platform "KUSANAGI"

Unleash ultra-fast speed and uncompromising security with our finely-tuned virtual machine, designed to run WordPress and other CMS with ease.

Important Notice to All Users

KUSANAGI 8 based on CentOS 7 will no longer be updated on June 30, 2024, as CentOS 7 will no longer be supported by the community on June 30, 2024.
KUSANAGI 9 on CentOS Stream 8 will no longer be updated on May 31, 2024, as CentOS Stream 8 will no longer be supported by the community on May 31, 2024.
Please refer to the respective platform information for the end of availability of KUSANAGI 8 and KUSANAGI 9 on CentOS Stream 8 on each platform where KUSANAGI is available.

The KUSANAGI 8 and KUSANAGI 9 on CentOS Stream 8 that are already in use can be used as they are since the RPM repositories of each KUSANAGI will remain for the time being.
However, CentOS 7 will not be supported by the community after June 30, 2024 and CentOS Stream 8 after May 31, 2024. The RPM repository of KUSANAGI will not be updated after June 30, 2024 for KUSANAGI 8 and after May 31, 2024 for KUSANAGI 9 on CentOS Stream 8.
Therefore, from a security perspective, please consider migrating to KUSANAGI 9 on AlmaLinux OS 8 / AlmaLinux OS 9 as soon as possible.

For more information, please refer to here.

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


High Performance

Users can experience your website smoothly, even under high traffic loads, without a significant drop in speed.

Enhanced Security

Almost all essential security functions come ready by default.

Saving Costs

Since there is no need to scale up, cloud computing costs can be reduced.

Speed is our top priority on KUSANAGI

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

More reasons to choose KUSANAGI

Improve User Experience and Conversions

Your website's speed improves user experience, increases page views and engagement, and enhances conversion rates.

Faster WordPress Dashboard

Admin dashboard with stress-free display speed allows you to focus on editing content and improving productivity.

Easy to start

Get started easily with a finely-tuned and secure virtual machine.

Always Up-to-Date

With continuous updates provided by the developer, Prime Strategy, you can always use the latest middleware.

Get started with KUSANAGI

KUSANAGI is available on major public cloud services and platforms.

Platforms where KUSANAGI is available


Choose from three editions: Free, Business, and Premium, depending on your specific needs and the scale of your business


KUSANAGI partners are all over the world

Cumulative80,000deployments. 37countries216regions,29major platforms

Partners’ Voices

Katsura Ito, Manager of Developer Experience & Evangelism at Microsoft Japan

Microsoft Japan welcomes Microsoft Azure support for Prime Strategy's ultra-fast WordPress virtual machine "KUSANAGI". The use of KUSANAGI to increase the performance value of WordPress and to be used in larger systems is in line with the Microsoft Azure market, and we believe that this will lead to a more collaborative relationship..

Yoshihiro Konno,Amazon Data Services Japan Partner Alliance general manager

We welcome the arrival of KUSANAGI for AWS at Amazon Data Services Japan. Currently, WordPress is used throughout the globe, and is growing rapidly in AWS. Presently, with the internationalization of the world’s fastest WordPress execution environment KUSANAGI (which has already achieved so much in Japan), and the offering of support in New York, Singapore, and Indonesia by Prime Strategy, we have high hopes for the active expansion of KUSANAGI for AWS