If you are subscribed to several hosting packages and have access to several webspaces associated with your account, in the Subscription menu at the top of the screen, select the required webspace.
Go to the Websites & Domains tab and click the site's domain name.
Click Bandwidth Limiting.
Select the Switch on bandwidth limiting checkbox.
In the Maximum bandwidth usage (KB/S) box, specify the maximum speed, measured in kilobytes per second, that a website can share among all its connections.
Select the Switch on connections limiting checkbox.
In the Connections limited to box, specify the maximum number of simultaneous connections to the site.
Click OK.