What are the Benefits of CloudLinux Hosting?

CloudLinux is the operating system used on the servers for shared hosting, reseller hosting, and WordPress hosting. There are a number of benefits to choosing a web hosting provider that uses CloudLinux, including enjoying a more stabilized, secure hosting environment and having resources dedicated to your account, which cannot be used by others on the server.

Another major benefit are the additional performance measures and hosting customization that exist in a CloudLinux environment. Below are a few of the major security and performance features and how they help protect your website.


OptimumCache is a unique caching system that maximizes server speed by decreasing duplicate file requests. By storing a single copy of these files with in-memory caching, the system maximizes disk IO and memory potential and significantly improves the read speed of the most commonly accessed files. What this means is, if your website uses WordPress, Joomla, Magento, or other popular software, you can expect a boost in website performance, specifically page speed (by serving pages from the in-memory cache).

Mod_lsapi (LiteSpeed Server Application Program Interface)

Mod_lsapi is the fastest and most reliable way to serve PHP pages. It has a low memory footprint and understands PHP directives from .htaccess files. Using LSAPI (LiteSpeed Server Application Programming Interface), we have seen higher performance than Apache with mod_php, easier installation than php-fpm and easier integration with any control panel. LSAPI means faster and more stable dynamic web pages.

MySQL Governor

MySQL Governor monitors MySQL usage and throttles resources to maintain performance across servers without instantly disconnecting users. This balance prevents server overloads and improves overall stability and performance for all users, eliminating the harmful resource drain caused by long database queries.


CageFS is a virtualized, per-user file system that uniquely encapsulates each account, preventing users from seeing each other and viewing sensitive information. What this essentially means is that your account is completely seperated from any other accounts on the server, as if your account was on its own private server. No other users are able to detect your presence on the server, which keeps your files completely anonymous. This will make it virtually impossible for them to be hacked or accessed without your knowledge. CageFS also protects the server itself from attackers, which adds another layer of stability, by ensuring that a hacked server will not disrupt your websites.


HardenedPHP secures old and unsupported versions of PHP (more than 85% of all PHP sites are running old, unsupported PHP scripts). HardenedPHP patches these older versions and eliminates vulnerabilities in the scripts. It could be catastrophic to your websites and files if a hacker found and exploited these vulnerabilities. Additionally, HardenedPHP makes it possible for websites using many different PHP versions to live in harmony on the same server. It also means that we will never force a PHP update that could potentially break your website.


SecureLinks is a kernel-level technology that prevents all known symbolic link (symlink) attacks. This feature essentially prevents malicious users from creating symbolic link files (tricking the web server to read some other user’s PHP config files) and enhances the security level of the servers even further.

Rad Web Hosting is committed to providing a high-performance, secure web hosting environment for all users, which is why CloudLinux is used exclusively for all shared hosting, reseller hosting, and WordPress hosting servers. It is available to purchase as an addon to any of our VPS, cloud, or dedicated servers, as well.