Varnish is a web application accelerator platform, which caches content for faster access. It’s occasionally called an HTTP reverse proxy as well and it interacts between a web server and a browser. When a site visitor opens a particular web page, its content is requested by the browser, and then the web server processes this request and sends back the required data. If Varnish is enabled for a certain site, it will cache its pages at the very first request and in case the visitor opens a cached page for a second time, the data will be delivered by the caching platform and not by the web server. The boosted load speed is an end result of the much faster response speed that Varnish offers as compared to any web server software. Of course, this does not mean that the visitors will keep being served the exact same content again and again, as any update on any of the pages is reflected in the content that the Varnish platform keeps in its system memory.
Varnish in Shared Hosting
You can take advantage of Varnish’s potential and boost the speed of your sites irrespective of the shared hosting plan that you’ve selected and you can add and configure the content caching platform with a few clicks of the mouse through the user-friendly GUI offered by our next-generation Hepsia hosting Control Panel. During the process, you’ll be able to choose two different things – how many websites will employ the Varnish platform, i.e. the number of instances, and how much data will be cached, in other words – the amount of memory. The latter comes in increments of 32 megabytes and is not linked to the number of instances, so you can add more instances with less memory and the other way around. If you’ve got a lot of content on a given site and you get plenty of visitors, more memory will give you better results. You may also consider using a dedicated IP for the sites that will use the Varnish platform. Hepsia will offer you easy 1-click controls for stopping or rebooting any instance, for erasing the cache for each site and for viewing in-depth system logs.