Viruses

Hi, I was using my iPhone 11 and I went on a web sight and a screen popped up that said “congrats on your 5 billionth search” naturally I was confused so I pressed the back button and this screen popped up that said “we detected a virus in your iPhone that can effect your battery Heath” then it listed this virus protector, which I did not download. I went on settings and cleared my search history afterwards. Does anyone know if I should go get my phone checked out for a hacker, or was it just a scam?