How to Turn Off RSS Autodiscovery in an Address for WordPress

1. Log in to your WordPress admin area, located at Yoursitelocation/wp-admin. You will need either 'Administrator' or 'Super Admin' permissions in order to complete this task successfully. If you have a lower role on the site such as 'Editor' or 'Author,' you will have to contact the site administrators and ask them to do this for you.
2. Click on 'Appearance' from the main menu bar on the left of the screen, then click 'Editor.' This is the Theme Editor, an area of your admin control panel from which you can edit the HTML source code of any WordPress themes you currently have installed.

3. Locate 'header.php' on the list of files on the right, and click it. This brings the file into the main editing window in the middle of the screen.
4. Look between the
and
tags for the lines of code that set the RSS feed to be auto-detected by browsers. Since there are different feeds for posts, comments, RSS2 and atom, there will probably be four sections you need to delete. Delete the following lines of code if present:
' />
' />
' />
RSS Comments Feed' href='
' />
5. Scroll to the bottom of the screen and click the 'Update File' button.