Approve a website/IP Address
When approving websites, be sure to enter the full domain name. For example, enter “youtube.com” instead of “youtube.” (You do not need to enter “www.”)
If you approve a site for a device assigned to a specific person, the site will be available to that person on all of the devices assigned to them. If the device is not assigned to a particular person, the rule will only apply to the device itself.
A total of up to 50 websites can be approved across all devices and users. Note that if you have not blocked or approved a website or IP address, it will be available to anyone who accesses it, unless it violates any parental controls you have enabled.