Web cache (or HTTP cache) is an information technology for the temporary storage (caching) of web documents, such as HTML pages and images, to reduce server lag. A web cache system stores copies of documents passing through it; subsequent requests may be satisfied from the cache if certain conditions are met.A web cache system can refer either to an appliance, or to a computer program.

Why Web Caching is Important

Browser caching allows your website to store website files and resources such as Javascript files, stylesheets and fonts so it doesn’t need to retrieve them every time you visit the site thereby reducing bandwidth consumption.