To help protect your student from visiting dangerous or inappropriate sites you can create an account with OpenDNS. OpenDNS watches traffic coming from your home router and matches it against its records. If material is deemed inappropriate, OpenDNS will block the page. Though helpful, it is important to note that even the best filter can be circumvented. The most effective filter is the watchful eye of a parent.
To see how to access OpenDNS you can view the following video: