2. What is Varnish Cache?
Varnish Cache is really fast. Use Varnish Cache for a fast loading website.
Varnish Cache is one of the most reliable caching solutions in Magento. This is an efficient solution to increase not only your website speed but also your server performance. Magento stores have to handle huge volumes of traffic. Multiple visitors click on the website pages at the same time and the visit requests are directly sent to the back-end or server. It is the server’s job to process the requests and send them back to the users who are then able to see the page they have requested.
Varnish is a proxy server. It is useful to deliver content fast. When a visitor requests your site repetitively , then this request will not be sent to Magento, it’s delivered from cache. Varnish checks if visitors request for Home page, Checkout, without firing a mysql query, or without hitting any php code it delivers content from cache.
Magento 2 is a very strong platform as it supports various features including varnish cache. When you are using the varnish cache server, you can ensure that the requests are received by this accelerator rather than a web server. There are lots of benefits using Varnish cache, it reduces the load of the backend, as it delivers the content from the cache server. If you desire to grab these benefits, you can immediately perform magento 2 varnish cache setup.
The page loading times are likely to increase and the site may even crash because Magento is equipped to handle only a limited number of visits at a time. Such circumstances translate into problems for the e-commerce retailer as these can lead to loss of conversions, customers, and even reputation.