Duplicate URL with same title on Google search when change a question title

Fri, 23 Sep 2016 06:45:16 +0000

The problem is here, assume that I have a question with title:

Changes no.	Question title	The URL
(1)	Who created Q2A	/1/Who-created-Q2A
(2)	Who created Question2Answer	/1/Who-created-Question2Answer
(3)	Who is contributing to Q2A?	/1/Who-is-contributing-to-Q2A

So, if I access one of three URL, it are worked. But it's not redirect to the newest (/1/Who-is-contributing-to-Q2A), so when Google indexing, it will index all three of these. And result is I have duplicate result on Google search. So is this a bug or anything to fix this?

is a backlink with question mark "?" in the url Useful ?

Wed, 07 Sep 2016 03:39:54 +0000

I understand "?" kind of shows that it may be a dynamic URL. I can see a backlink from a URL to my own site but this URL has a "?" From moz bar tool i can see it's showing up neither follow nor no-follow. So not sure what to make out of it.

1) My questions is that is this kind of back-link useful for SEO of my site?

2) Sometimes a hyperlink shows just "external
it's neither follow nor no-follow. Is this kind of backlink useful ?

Vikas

Question2Answer Q&A - Recent questions tagged seo-links

Duplicate URL with same title on Google search when change a question title

is a backlink with question mark "?" in the url Useful ?