NSE:apache-server-status

Here is another NSE script you can use for some useful information gathering purposes

"Attempts to retrieve the server-status page for Apache webservers that
  have mod_status enabled. If the server-status page exists and appears to
  be from mod_status the script will parse useful information such as the
  system uptime, Apache version and recent HTTP requests."

The above image really just tells us that the service is http and it is on port 80.  Another equally fast test is to use netcat and attempt to connect to the port

#nc -nv 192.168.1.73 80

While the above image may not show details from a server status page (because their isn't one).  If there was one there You would get some data that looks like this.

Above image is grabbed from [1]

Reference:

[1] https://nmap.org/nsedoc/scripts/http-apache-server-status.html