No, your PC, for the most part, can't be compromised from visiting a webpage, especially when using an antivirus. Most phishing websites are just websites made to look like official websites, where they get visitors to type in important info like usernames, passwords, separate emails, biographical info, etc. Anyways, the point is that these pages are very temporary, so they don't last very long, and also require some way of the visitor giving information to the host. Hope this helps!