The cache is often the most critical piece of software for a web-based business.Varnish Cache is a web application accelerator also known as a caching HTTP reverse proxy. You install it in front of any server that speaks HTTP and configure it to cache the contents. Varnish Cache is really, really fast.Varnish Cache is a powerful, open source HTTP engine/reverse HTTP proxy that can speed up a website by up to 1000 percent by doing exactly what its name implies: caching (or storing) a copy of a webpage the first time a user visits.
Who should use Varnish?
Anyone can use Varnish, but it is especially useful for businesses that value speed, performance, scalability, and want to save on server infrastructure. Varnish is beneficial both to users who need basic functions and to very advanced users who have the expertise, time and resources to build customized modules.For more information and detail please see at varnish-cache
