This happened to me this morning as well. I did a ton of googling to find a solution and it was a mix and match of things. I think I've found my problem, (not sure if it'll be different for you all), but I also don't know how often those websites will come back and redirect out of nowhere but it hasn't happened yet since this morning so I'll assume it worked.
What I did was I went to my google history from my phone in the upper right corner, then at the top of History, you'll see myactivity.google .com which will show you in detail what happens on your phone. I went to where t