There is a lot of stuff going on inside your website and it is easy to lose a cat or more to the point data. WordPress is a CMS (content management service) and uses a database to track and store your content. Database optimization is critical in reducing database errors, site response and general site failures. You see every time you delete/move/remove anything in WordPress the reference to that object is not actually removed from the database. The only way all these files gets deleted is when the database is optimized.
Monthly optimization 9.95
Note: included in premium hosting plans