Any one use before Permalinks Moved Permanently Plugin before?

I am planning to change my Blog URL from hxxp://blog.icalvyn.com to hxxp://www.iCalvyn.com , since my MAIN URL having PR4 while sub domain having PR2 only.

any one use before this plugin? I worry this plugin will not direct my Search Engine Traffic to my blog after doing migration.

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I blog my IT Engineer LIFE at iCalvyn.com

Redirect sometimes will "help" your blog been penalize by google on page rank and serp. Subdomain is treated as the new "domain" by search engine. It's treated much more like an independent domain in many respects - for example, if urls from both the root domain and a subdomain show up on the same page of search results, they do not cluster together.

So, in term of traffic Im sure the flow will ok but in term of seo..I'm afraid to guarantee the effectiveness.

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Internet Entrepreneur Pure White Hat | My Service-->DARE TO HIRE ME

yes, you are rite. This is once of the concern.

I did not use this plugin before, for this case, if the subdomain content no longer exist, the should be no duplicated content exist too.

Need to comfirm again, but I guess for sure will loss some traffic after changes

any more suggestion?

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I blog my IT Engineer LIFE at iCalvyn.com

just to update, I have successful trasnfer my blog from (blog.icalvyn.com) to (iCalvyn.com)

if some one access (blog.icalvyn.com/hello) it will auto redirect to (icalvyn.com/hello)

now problem rise, in this domain, there are 2 wordpress and 2 db. If I delete the wordpress in (blog.icalvyn.com), the above situation does works... damm

now I have 2 blog at my domain, and duplicated content too, not sure google will take away my PR or not... I am worry

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I blog my IT Engineer LIFE at iCalvyn.com