WordPress is the most popular software to create your own website or blog. It is used by over 34% of the websites out there according to W3Techs. It started as open-source software for creating blogs, also known as Content Management System (CMS). In the category of the CMS, WordPress has occupied more than 60% of the market-share. Many website builder tools like Squarespace and Wix in fact use WordPress as their software under-the-hood. It is used by very popular sites with heavy traffic such as booking.com, carfax.com, cheatsheet.com, and radio.cbssports.com.