Ultrafast CMS Execution environment KUSANAGIIn operation
Page processing speed 0.000

KUSANAGI Ready Project and New Board Members Announced


Prime Strategy
Prime Strategy Co., Ltd.

Analyzing WordPress Plugin Compatibility with PHP and Security
With KUSANAGI Ready Project
Japan’s Leader in Web Security Joins as Advisor
Open Source Business Authority Joins as Board Director

TOKYO – February 29th, 2016 – Prime Strategy Co., Ltd. (hereby referred to as Prime Strategy) today announced that it will launch the KUSANAGI Ready Project in March 2016. This project will create a standard for WordPress plugins and themes, such as checking whether they are compatible with PHP 7, HHVM, and PHP 5, whether they pass security tests, whether they maintain a certain level of speed and performance, and whether they have multilingual support.

About KUSANAGI Ready Project

WordPress is an open source CMS software that is used in 25% of the world’s websites. In the official WordPress.org directory there are over 40,000 plugins and 2000 themes that anyone in the world can use. However, it is difficult to judge these plugins and themes to determine if they conform to PHP, have passed a security check, or cause any performance issues.

We examine and verify the compatibility of all versions of PHP and the support of various languages, as well as perform security checks and performance tests on plugins that are often used in enterprise business. The resulting plugins and themes comprise the KUSANAGI Ready Project.

Prime Strategy’s Plan to Contribute

The average WordPress user can now have a means to evaluate the plugins and themes they choose to use, making WordPress easier to use and their businesses more efficient. And, since our standard is based on PHP 7, HHVM, and PHP 5, users who are already using Prime Strategy’s Ultrafast WordPress Virtual Machine KUSANAGI will have a wealth of beneficial information at their fingertips.

This initiative is based on the idea of closing the gap between IT industry vendors and their users, and we hope that with this project we can further contribute to the WordPress community and the industry at large. We hope that it is a determining factor for the success of our KUSANAGI Fully Managed Service.

With KUSANAGI Ready Project, we hope to analyze 100 plugins and themes over a 3-year span, and even if a plugin or theme fails our initial exam, we wish to offer creators a way to revise by sending them patches.

Strengthening Our Organization

Starting with KUSANAGI Ready Project,  our goal is to reinforce our business strategy, so we have enlisted the help of Japan’s leader in web security, the president of HASH Consulting, Hiroshi Tokumaru. And, in order to strengthen the view of our company in the web service market, we have also enlisted the board director of the Engineer Certification Corporation for PHP, Tadashi Yoshimasa, who has launched many partner programs. Please read about these two men below.

Hiroshi Tokumaru

After joining Kyocera Corporation in 1985, he developed software and pursued many projects. In 1999, he was in charge of a certified payment system for cellphones, and became interested in application security. In 2004 he commercialized the field. And in 2008, he became independent and established HASH consulting, specializing in web application security. Alongside his consulting and vulnerability research, he uses blogs and study groups to raise awareness about security. He also has a book, How to Create Secure Web Applications, published by Softbank Creative. He is currently the leader of HASH Consulting, Kyocera Communication Systems Technical Advisor, and part-time research for the Information-technology Promotion Agency. He holds a Professional Engineer license in information engineering.

Tadashi Yoshimasa

Joined Intec Inc. in 1992. Then he became a marketing expert for Novell, Inc., SAP Japan Co., Ltd., Turbolinux Inc., and Infoteria Corporation, as well as creating five partner programs. In 2010 he established the marketing outsourcing company Yoshimasa Sousei Co., Ltd., which he is now president of. He launched it as a Turbolinux Certified Engineer and XML Master taking responsibility in the business, and believing in reinforced education for a safer IT market. Currently he is a founder of the Engineer Certification Corporation for PHP and a member of the Rails Programmer Certification Test Steering Committee. He is also the chairman of BOSS-CON Japan, which promotes business open source starting with PHP and Ruby on Rails.

About Ultrafast WordPress Virtual Machine KUSANAGI

KUSANAGI is a free and open source virtual machine image developed by Prime Strategy, and it is the world’s fastest WordPress execution environment. Even without using page caching, a quad-core CPU WordPress execution time is 3 milliseconds and requests per second surpass 1000. If you choose to use page caching, requests per second will increase to the 60,000 range.

KUSANAGI is currently available for free on nine public cloud services: Microsoft Azure, IBM SoftLayer, Amazon Web Services, Sakura Cloud, ConoHa, Z.com, IDCF Cloud, Cloudn, and S-Port.

For more information about KUSANAGI, please visit:

KUSANAGI Development Policy

More than 25% of the world’s websites now use WordPress. Many people are already enjoying its merits. But on the other hand, large-scale sites have begun to wonder if they can use it, too. In order to meet their demand, we developed the world’s fastest WordPress execution environment KUSANAGI.  KUSANAGI offers the latest technology and solutions as well as increased convenience and an improved operating environment for people already using WordPress. We hope to further develop KUSANAGI to make one of WordPress’ merits “high speed”.

About Prime Strategy Group

Prime Strategy Group is a cloud integrator solving the issues of cloud computing for global companies, beginning with Asia. With presences in Japan, Singapore, and Indonesia, we offer cloud integration services, mainly in the form of SI and MSP on cloud platforms.

On the business front, we architect web systems for government bodies as well as corporations that represent both domestic and foreign industries. These include the Japan Aerospace eXploration Agency (JAXA), the University of Tokyo, TV Asahi, Mynavi, Adobe Systems, JTB Asia Pacific, and Bank Negara Indonesia. We have also constructed many large-scale WordPress sites in Japan.

We created the Ultrafast WordPress Virtual Machine KUSANAGI from years of experience. The VM is offered for free on most major cloud platforms, and we recommend KUSANAGI Fully Managed Service as a one-stop tuning and maintenance service from server to WordPress itself.

For more information on KUSANAGI Fully Managed Service, please visit:

For inquiries related to this article, please contact Kusunoki or Yoshimasa, our public relations managers at Prime Strategy.
E-mail: pr@prime-strategy.co.jp
Address  Otemachi 21 Bldg. 5F, 1-4-1 Uchikanda, Chiyoda-ku, Tokyo
URL: https://en.prime-strategy.co.jp/
TEL: 03-5577-6176 / FAX: 03-5577-6643

All products and names are registered trademarks of their respective companies.

WordPress × KUSANAGI 課題解決事例100選 プレゼント!

Webサイト運用の課題を解決した企業、官公庁・各種団体、学校など100を超えるお客様に直接お話をお伺いし一冊にまとめたのが『WordPress × KUSANAGI 課題解決事例100選』(非売品)です。こちらを無料でプレゼントいたします。是非お申し込みください。

Solution to solve customer problems,
We will provide you with some benefits that meets your requirements.

Contact Us