80% of the end-user response time is spent on the front-end. Most of this time is tied up in downloading all the components in the page: images, stylesheets, scripts, Flash, etc. Reducing the number of components in turn reduces the number of HTTP requests required to render the page.
Memcache is a general-purpose distributed memory caching system. Although application-neutral, it’s most commonly used to speed up dynamic Web applications by alleviating database load. Memcache allows you to store highly requested data in RAM, across a network of servers, saving you from hitting your database.
In this tutorial we will learn about the HTML tag DOCTYPE and the different modes used by the web browsers to render the HTML page.
