So, I changed over to self-hosting a few weeks ago and downloaded a new theme. I was just going through all my posts checking for errors that may have occurred in the transfer when I noticed a HUGE problem.
When I click on the “PARENTING” tag in my sidebar, which is a MAIN topic area for me, it briefly opens and then immediately redirects to youtube!! (?!?!). It happens again at the following link: scroll down to the bottom and hit “next page” to see more posts. It redirects to youtube again!!
Did you noticed that redirecting appears only when post with embeded youtube is displayed?
It’s no looking like hack.
Just check which way are you embeding youtube video.
Turn autoembedding off to check.