You can temporarily remove your Milkshake site from the internet by hiding all of the Cards in your site.
For detailed instructions on how to Hide a Card check out this guide.
You will need to go through the above steps for every Card on your site.
Once you have hidden all your Cards visitors will no longer be able to see your Milkshake site and will instead see a 404 message.
Tip: If you don't want your visitors to see a 404 message consider creating a new Card with a message like "Taking a break - we'll be back soon" or "Site under construction".
This will help your visitors understand what is happening and will stop them assuming your site is just broken!
The ability to temporarily hide a Card is available as part of the Milkshake Pro subscription.