Quick Tips:

Recommended server config options for tracking on GameTracker (note that setting the first two are typically optional):

host_name_store 1
host_info_show 1
host_players_show 2

To disable querying:

host_info_show 0


host_name_store

host_name_store 0
These will cause your server to return its name as "Counter Strike: Global Offensive"

host_name_store 1
This will cause your server to return its name as it is set in your config.

host_info_show

host_info_show 0
Your server will not respond to the query.

host_info_show 1
host_info_show 2
Your server will properly respond to the query.

host_players_show

host_players_show 1
This causes your server to not return a player list. Your server will track on GT, but will show no activity whatsoever. In HLSW, this will appear as if the server has one player named "Max Players" in the player list section.

host_players_show 2
This causes your server to respond to the query in the standard manner with player count and player list.


Other Issues

Some CS:GO servers stop reporting players after about 55 players. Until the game creators decide to fix it, your server may show offline when it has about 55 or more players online.