Learn exactly what Varnish is. Get to know more about web accelerators and their function.
Varnish is a web application accelerator, which has been gaining a lot of popularity in recent years, as it can increase the load speed of any Internet site, at times even by 100%, depending on the content. This tool is sometimes called a caching HTTP reverse proxy as well and is used to lower the overall load on the physical machine and to improve the access speed for the site visitors. Whenever a visitor opens a page on a certain site, the web browser request is handled by the web server and the requested info is sent as a reply. If the Varnish accelerator is enabled, it caches the web pages that the website visitor opens and in case any of them is loaded once again, it is fetched by Varnish and not by the server directly. The improvement in the performance comes from the fact that the accelerator handles the browser requests considerably quicker than any web server, which results in much faster browsing speeds for the visitors. If any data is modified meanwhile, the cached pages will also be ‘refreshed’ the next time someone accesses them.
Varnish in Cloud Website Hosting
Varnish is offered as an optional upgrade with each and every Linux cloud website hosting package
and if you want to use it, you can add it to your hosting account via the Upgrades section in your Hepsia Control Panel. There’re two separate features that can be upgraded – the number of instances and the system memory. The first one refers to the number of the Internet sites that you want to employ Varnish for, whereas the second, which is available in increments of 32 megabytes, shows the maximum amount of content that the content caching platform can store at any particular time. Hepsia’s easy-to-use interface will allow you to delete or to restart any instance, to check comprehensive logs or to get rid of the platform’s cache with just one mouse click. For best results, you can employ a dedicated IP address for the Internet sites that will use the caching platform. With Varnish, your website will open tremendously faster, meaning more satisfied site users and prospective clients.
Varnish in Semi-dedicated Hosting
All our Linux semi-dedicated packages
include Varnish by default, so you can make full use of the web accelerator and improve the load speed of any site that you host on our platform. You will get 64 MB of memory particularly for the Varnish accelerator at no additional cost and you’ll be able to create an instance with no more than a few clicks of the mouse via the Hepsia Control Panel, which comes with the semi-dedicated server plans. In case you need more memory, the latter is available in increments of 32 MB through the Control Panel’s Upgrades section and it will be available to you instantaneously. You can also add more instances as a separate upgrade, so you can choose whether a lot of data will be cached for a single website or whether the memory will be used by different Internet sites. The Hepsia Control Panel will enable you to restart or to shut down any instance, to check the system log file for it or to delete the cached files using one-click buttons. To take full advantage of the Varnish accelerator, you can assign a dedicated IP to the sites which will employ it.
Varnish in Dedicated Hosting
In case you order a dedicated server
with the Hepsia Control Panel, you will get the Varnish content caching platform at no additional fee and you will have total control over it via a quite simple-to-navigate graphical interface – you’ll be able to start, to disable or to reboot an instance, to check an elaborate system log, to clear the cache associated with any website and much more. The Varnish platform will have several GB of system memory at its disposal, so even if you run resource-demanding sites with a large number of visitors, you’ll notice the substantially better web page load speeds and the lowered server load. This will happen shortly after you begin using Varnish, as it will need a certain amount of time to cache the website content that visitors open. You can get the most out of the platform’s capability if the Internet sites that are using it use also a dedicated IP address, but since your dedicated server comes with several IP addresses by default, you will not need to pay anything on top of your monthly charge for the machine itself.