WordPress technology is open source and free, and it powers a huge chunk of the internet — around 40% of websites. Websites can host their own WordPress instance or use a solution provider like Automattic or WP Engine for a plug-and-play solution.
In mid-September, Mullenweg wrote a blog post calling WP Engine a “cancer to WordPress.” He criticized the host for disabling the ability for users to see and track the revision history for every post. Mullenweg believes this feature is at the “core of the user promise of protecting your data” and said that WP Engine turns it off by default to save money.