Malware through opening a page

Hi everyone,

I got earlier an email from my router security system that my iPhone was infected by malware.

That day I was searching on google map for specific place and opens a page, that was linked to suspicious page. After closing it my iPhone started to react slower, specially by checking the emails. The Email App freezes now constantly.

Any idea if this is connected to the email that I got from trustful source, that device was invented with malware?

I hope there are still no viruses that can get into iPhone!