But since kids can delete this history, you may want to install Internet filtering software to block porn sites in the first place.
Software filters aren't a perfect solution; some nasty sites can slip through, while educational or family-rated sites may be blocked.
No doubt, the Internet can be an extremely useful tool for young people.
But instant messaging, chat rooms, emails and social networking sites can also bring trouble - from cyberbullying to more serious Internet dangers, including exposure to sexual predators.
You can view the Internet browser history to see which websites your child is visiting, Shehan says.
That way, if someone's viewing porn, you'll have the records to deal with it.
Internet Safety Tips Camera phones, digital cameras and web cams are everywhere these days, and kids can be victims of their own inexperience with new technology.
Internet Danger #1: Cyberbullying On the Internet, cyberbullying takes various forms, says Netsmartz411.org, an online resource that educates parents about Internet safety.
Cyberbullying includes sending hateful messages or even death threats to children, spreading lies about them online, making nasty comments on their social networking profiles, or creating a website to bash their looks or reputation.