Perfecthosting.co has been flagged as a scareware-like domain.
Workarounds:
- block and report the owner of Perfecthosting.co
<address>Apache/2.4.23 (Unix) Server at perfecthosting.co Port 80</address>
- ignore and report the owner of this number 1-844-507-3556
- update your browsers, OS and/or Norton software
The scam exploits a bug in Chrome's implementation of the history.pushState() method that enables developers to push data "onto the session history stack".
Read OP here.