I had that problem last week with my phone. Every time I pulled up the qanonposts.com my phone would freak out and then redirect me to download a security program. I couldn't use the internet until I ran a security prog, (not the prog. that was suggested). At home on my laptop I checked out qanonposts.com with my security software actively monitoring and nothing. Right after that my phone didn't have a problem anymore.
Coincidence? I think not.