Display server name

If you put anonusa.net into this ssl lookup site, it shows the 'Server type' in the listing. When I lookup my own site, the server type is not listed. Is there some parameter that you put in the config file that causes the server type to display?
Here is a site that displays it:
https://www.sslshopper.com/ssl-checker.html?host=mixmin.net#hostname=anonusa.net

Thanks