Varnish is a web application accelerator platform, which caches content for quicker access. It’s occasionally called a caching HTTP reverse proxy as well and it works between a web server and a web browser. When a site visitor loads a specific page, the content is requested by the web browser, and then the server processes this request and delivers the needed content. If Varnish is activated for a certain site, it will cache its pages at the first request and in case the user opens a cached page once more, the content will be delivered by the caching platform instead of the web server. The accelerated speed is an end result of the substantially faster response time that Varnish offers as compared to any web server software. Of course, this doesn’t mean that the site visitors will continue seeing the exact same content over and over again, since any modification on any of the pages is reflected in the content that Varnish stores in its memory.

Varnish in Cloud Web Hosting

In case you host your sites under a cloud web hosting account with our company, you’ll be able to add Varnish with several clicks via your Control Panel. The caching platform comes as an upgrade with all our shared plans and you can choose the number of the sites that will use it and the total amount of system memory that will be available for the cached data. The two upgradeable features in the Upgrades section of the Control Panel are the number of instances and the amount of memory and they are not linked directly to each other, so you can decide whether you need a lot of memory for a single large-size site or less memory for multiple smaller ones. You can unleash the full potential of the Varnish caching platform in case the websites use a dedicated IP address. Using the hosting Control Panel, you can quickly start/reboot/disable an instance, clear the cached contents independently for each website that uses the Varnish platform or view a comprehensive log.