Can't access 4chan or imgur

For the last 2-3 days whenever I try to get on 4chan either the "Oops! Google Chrome couldn't find 4chan.org" error shows up or on rare occasions the site just barely loads, where the background is all white and the look of the site is all messed up.

With imgur the issue is the same. I've tried opening those sites on firefox and explorer to no avail.

I'm using windows 7, my computer is a packard bell easynote tx laptop if that helps. I'm bad with computers so I don't know how much more specific I can be.

EDIT: Thanks a lot for the help guys. It seems the problem has fixed itself I think. I can use these websites without any problems now at least.