tool.www.mysite.com?
www.mysite.com
www.mysite.com/subpage1
www.mysite.com/subpage2
www.mysite.com/subpage3 ...etc
But there is another page that also appeared, which is - tool.www.mysite.com. This page's content is exactly the same as my index page (www.mysite.com). It was indexed by Google also, therefore I have got two similar page (duplicate content) in the eyes of Google.
What exactly is this page? where it came from? how come got a 'tool' infront of the www? Will it affect my serp?
Amyone can advice me...thanks in advance
âAn expert is a person who has made all the mistakes that can be made in a very narrow fieldâ Niels Bohr