So that's why I seeing more of them

You know when you hit a site and all of a sudden you Windows Antivirus goes nutz--"ZOMYGAWD YOU HAVE GAZILLIONS OF INFECTIONS!!!!1111!!!!"

"GO, QUICK- HIT THIS DOWNLOAD NOW!!!!!ELEVEN!!!!!"

HURRY- YOUR COMPUTERZ GOING TO EXPLODE!!"

Except that it's not your antivirus if you look before making a mistake.
It's a rouge site trying to get you to install maleware.