A variety of online tools are currently available that display the headers of any website. With the server signature turned on, it would be very easy for anyone - including hackers - to view the versions of your server software and other critical data. It is always better to reduce the public visibility of any critical data in order to reduce the chance of your website being hacked.
We will check if your server signature is on, and turn it off if it is on (if possible for your hosting server). Turning off your server signature is generally a good idea from a security standpoint.
NOTE: Some servers (i.e.nginx) do not allow this process unless the hosting account for the website is a VPN or Dedicated Server.