Varnish is a website accelerator platform, which caches data for quicker access. It is occasionally called a caching HTTP reverse proxy too and it interacts between a web server and its users. When a website visitor loads a specific web page, its content is requested by the web browser, and then the web server handles this request and delivers the needed content. If Varnish is activated for a website, it will cache its pages on the very first visit and if the user opens a cached page once again, the information will be delivered by the caching platform and not by the web server. The increased speed is an end result of the considerably faster response speed that Varnish offers compared to any server software. At the same time, this doesn’t mean that the website visitors will keep seeing the very same content again and again, because any modification on any of the web pages is reflected in the content that Varnish caches in its system memory.
Varnish in Cloud Website Hosting
If you host your sites in a cloud website hosting account with us, you’ll be able to add Varnish with a couple of clicks through your hosting Control Panel. The caching platform comes as an upgrade with all our shared packages and you can choose the number of the sites that will use it and the total storage space that will be used for the cached data. The two features that can be upgraded in the Control Panel’s Upgrades section are the amount of memory and the number of instances and they aren’t directly linked to each other, so you can choose if you want a lot of memory for one large site or less memory for several smaller ones. You can use the full potential of the Varnish platform in case the sites use a dedicated IP address. Using the hosting Control Panel, you can quickly start/restart/terminate an instance, delete the cached files individually for each site that uses Varnish or check a detailed log.