WordPress高速化環境「KUSANAGI」のプライム・ストラテジー株式会社 累計稼働台数5万台突破!超高速CMS実行環境「KUSANAGI」稼働中 本サイト処理速度 0.000

KUSANAGI Case Example: yomiDr.


Prime Strategy
Prime Strategy Co., Ltd.

Yomiuri Shimbun’s yomiDr. Begins Using the World’s Fastest WordPress Virtual Machine KUSANAGI
300% Traffic Increase, 1-hour Restoration, 50% Cost Reduction

TOKYO – May 24th, 2016 – Prime Strategy Co., Ltd. (hereby referred to as Prime Strategy) today announced that the industry’s largest health service info site yomiDr. has begun using the ultrafast WordPress execution environment KUSANAGI. KUSANAGI is capable of an execution time of 3 milliseconds and 1000 requests per second without page caching.

Yomiuri Shimbun’s yomiDr. is a large-scale site that is needed in times of disaster. The merits of “increased page views and speed” and “lowered operational costs” that come with KUSANAGI should interest other large-scale sites, and we hope this facilitates the popularization of KUSANAGI.

Client Information

Company: Yomiuri Shimbun Tokyo HQ
Website: Yomiuri Shimbun’s Health Service Info Site yomiDr.
URL: https://yomidr.yomiuri.co.jp/
Products Used: KUSANAGI for Microsoft Azure, KUSANAGI Fully Managed Service
Service Start: March 2016

Issues of yomiDr.

・No server balancing in place to deal with high traffic
・No guarantees the site would operate through disasters
・High operational and maintenance costs
・Took time to update content
・No mobile version

Results of Using KUSANAGI

・A site with 300,000,000 page views a month
・Ability to restore from a remote location in achievements of disaster
・50% decrease in operational costs
・Less time needed to create content
・Mobile capability

Comment from Kenichi Maruyama, Head of Medical Network Preparation, Yomiuri Shimbun Tokyo HQ

yomiDr. was launched five years ago, and the system that was created for it at the time was now old, and our page views fell to 2,300,000 a month. We didn’t have mobile capability or prevention against data loss, so we thought about renewing the site. For our next CMS, we placed importance on the ease of updating multiple articles. Eventually, we received proposals from three companies, and we considered their skills, achievementss in WordPress for enterprises, maintenance availability and cost. We entrusted our site to Prime Strategy. By using KUSANAGI for Microsoft Azure, our site performance has greatly improved and we now have 300,000,000 page views a month. Also, time spent operating the site is 1/6th what it was, and costs have been reduced by 50%. On top of that, if a disaster strikes eastern Japan, we can restore the site from a backup in western Japan in less than an hour.

Comment from Yusuke Jinnai, Head of Partner Business Development, Microsoft Japan Co., Ltd.

We are very glad that a top-class health information site decided to use Microsoft Azure. With the stipulation that some sites need to continue operating in the achievements of a disaster, we believe that many users will be satisfied with Microsoft Azure’s flexibility in the use of multiple data centers.

Case Example Details


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.

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 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。

Leave a Comment