I have done a redirect on my website, after i have change the url from:
Then I use the term site:https://www.example.com/redirect-done
and i found out the 2 links have been index on google.
I want to ask if this is a duplicate content problem?
and if it is a duplicate content, is it the best option to use the remove url function in my
google webmaster console or can i just use the robot.txt file to disallow the old url?
Please i need help