Alma Linux / Rocky Linux / Amazon Linux / RHEL


Convenient Web tools to Linux Server

Open source Linux is also changing. Even applications that are considered to be the latest version or stable version have a short lifespan.

Qualys. SSL Labs

SSL Labs is a collection of documents, tools and thoughts related to SSL.

MX Super Tools

All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool. MX record check / SPF Record lookup check.


Get your PageSpeed score and use PageSpeed suggestions to make your web site faster through our online tool.



AlmaLinux JP

An Open Source, community owned and governed, forever-free enterprise Linux distribution, focused on long-term stability, providing a robust production-grade platform. AlmaLinux OS is binary compatible with RHEL®.


Application security & performance
Protect & accelerate mobile / web apps, APIs & websites with WAF, DDoS, CDN, DNS & more.
Network security & performanceProtect & accelerate infrastructure with L3 DDoS protection & FW, interconnects and smart routing.