IPhone safari message pop up said please clean your mac?

I had a message saying to consider cleaning my mac on my iphone, is this a virus? I don't have a mac so would this effect me, my pc is also broken at the moment, but will this cause problems on my iphone or anything like that I'm not a tech wizard so if you know how to fix this and can explain it easily it would be really helpful thank you

Sounds like a pop up advertise. Best to just ignore it, your phone will never legitimately tell you you need to 'clean your mac'