Think about merging two websites A and B. A is a popular website and B is a startup like one. All of the posts on B will be republished on A and posts will be deleted from B.

So here is my question, How can we do such migration without loosing SEO and hurting the value of website A on the search engines? Will it be thought as a copy version by search engines?

2 Answers 2


To make the transition as seamless as possible, redirect each page from the old B site url, to its new location in the new A site url.

  • Redirecting whole B to A's homepage is a bad idea? Commented Aug 29, 2016 at 18:17
  • 1
    Yes you redirect the whole domain, but not everything to the homepage, that will harm your rankings. You redirect old to new... i.e exampleB.com/cars/ to exampleA.com/cars/, exampleB.com/ to exampleA.com/ Commented Aug 29, 2016 at 18:23
  • and if there is no exact match try to redirect to the most similar page / piece of information for the user Commented Aug 30, 2016 at 22:08

Make sure that URL for posts is the exact match between two domains, and then use 301 [permanent] redirects, and place it in domainA root folder.

For example, to redirect:




Create .htaccess file [if you are using Apache] in domainA root folder with instruction:

# 301 redirect all request from domainA to domainB
Redirect 301 / http://domainB.com/

This will 301 redirect all requests from domainA to appropriate URLs on domainB.

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