subdomain.abc.com to abc.com/subdomain

Selected answers from the Dumb SEO Questions Facebook & G+ community.

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  Sanjay Upadhyay: Hi Guys! Need suggestion ;
  
  Few days back  ;i created a sub domain that is subdomain.abc.com But now i want to change it as abc.com/subdomain ;
  
  I use windows hosting from godaddy how to solve it without loosing any  ;authority ;
  #windowhosting  ; #subdomain  ;
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  Peter Berndroth: Hello Sanjay, you have to make an 301 Redirect!
• 
  Sanjay Upadhyay: Thanks Yes Its a second process . But i want to know to change subdomain.abc.com to abc.com/subdomain +Peter Berndroth ;
• 
  Peter Berndroth: You only have to create the new Directory on your Webserver (abc.com/subdomain) and then change your DNS for the Domain to new Directory. Then copy all Files!
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  Sanjay Upadhyay: thanks +Peter Berndroth ;
• 
  Jim Munro: The new directory would already have DNS, right? :).
  
  I would not forget +Peter Berndroth's first suggestion and 301 redirect page by page from the subdomain to the subfolder. To lessen the pain you could consider keeping the subdomain up for a while and rel=canonical for a few months from the subdomain to the equivalent page on the subfolder. Once the traffic ebbs away, then 301.
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  Edwin Jonk: As an add-on to +Jim Munro ;:
  
  Verify your sub-domain in Google Webmaster Tools. After setting up the 301's, look at crawl >> crawl errors for 404. Because you will always forget some 301's and by monitoring the 404's on the old site you can fix it asap. ;