Keep getting redirects to dodgy web pages

On android phone and browsing pro race and keep getting redirected to 'your phone has a virus' or 'you have won an Iphone' or get 500 quid of tesco vouchers for free' webpages. Are your servers infected?
0
Posts
Rule #9 // If you are out riding in bad weather, it means you are a badass. Period.
Rule #12 // The correct number of bikes to own is n+1.
Rule #42 // A bike race shall never be preceded with a swim and/or followed by a run.
I had an app redirect on iPhone 6s/Chrome yesterday and have reported to our ad ops team.
Any further info would be useful.
Thanks!
Android phone by the way, Galaxy s7.