Hi,
I have just checked my webmasertools account and under HTMl Suggestion Google is reporting that I am having duplicate TITLE TAGS.
Issue:
http://www.example.com/my-post/ - original post
http://www.example.com/my-post/?utm_source=twitterfeed&utm_medium=statusnet - making duplicate content
The strange thing is that when I visited this http://www.example.com/my-post/?utm_source=twitterfeed&utm_medium=statusnet , It showed me the exact copy of the http://www.example.com/my-post/ instead of 404 error which I was expecting.
I don't know why ?utm_source=twitterfeed& is appending to all my article pages and making them duplicate.
Please, help me to revolve this issue.