The Advanced tab grants you fast access to a set of advanced features, among them the Memcached distributed memory caching system and the Varnish Cache web accelerator, which will help you optimize your sites and applications without having to leave the web hosting Control Panel. Based on the web hosting package, these tools are either added by default or are available in the form of easy-to-get upgrades. InnoDB and NodeJS support is offered too.
Varnish Cache is a web application accelerator also referred to as an HTTP accelerator. You can install it in front of any server that speaks the HTTP protocol and configure it to cache the contents. Varnish Cache is very, very fast and will improve your web site's speed. One of the major features of Varnish Cache is the flexibility of its configuration language, VCL, which enables you to choose how incoming requests should be dealt with.
Memcached is a general-purpose memory caching system for boosting the load speed of dynamic database-driven sites. It is used to decrease the number of times an external data source (such as a database or API) is read by caching data and objects in RAM. The Memcached memory object caching system uses a client'server architecture. The Memcached distributed memory object caching system is used by some of the most traffic-heavy sites on the Internet and is supported by popular web apps like Joomla and WordPress.
InnoDB is the default storage engine for the MySQL open-source relational database management system. A storage engine is the principal software component that a database management system uses to create, retrieve, update and delete data from a database. Its latest release features considerable improvements in performance, stability and usability. InnoDB provides the standard ACID transaction attributes, along with foreign key support. InnoDB is included as standard in most binaries distributed by MySQL AB.