They could check your history use a program or other software to retrieve any evidence that you were on the website, there are many ways but the question is how far will your parents go to find out?
By checking the browsing history. However, you can keep this from happening by deleting the browsing history after your done.
look at your website history or some parental evices keep tabs on it. I know how to get around um tho :)
By checking through the browser and computer history.