This knowledgebase will show you how to send Rcon commands to your server through the Web Console.
Step 1: Go to your Game Panel and open your Web Console.
Your server has to be running in order for your Web Console to open.
Step 2: Enter your rcon password. This is your Admin Password which is either set in your Commandline or GameUserSettings.ini
Step 3: Enter the command you wish to use. Here is a list of commands that can be used.
https://streamline-servers.com/billing/knowledgebase/75/ARK-Survival-Evolved-Admin-Commands.html
Note: all of these commands can be used without the cheat prefix.
Unfortunately due to how ARK is setup, the server will not respond to your command. But the command will be pushed through and run on the server.