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Hey Moz experts, I had a domain which was really doing better but after the Humming Bird update my traffic was decreased up to 90%. There are plenty of posts on my existing blog, Now what should I do? I mean should I redirect it to a brand new domain or Copy all the posts to a brand new domain and delete my existing domain? Note that the Old domain has PR1, DA 19 and PA 30.

I have got a domain by the name stock-wallpapers. Now I want to give a post with name download (my keyword) stock wallpapers, where the keyword stock wallpapers comes twice? Should i go for it or not? or what should i do instead? Looking for nice response and Hopefully everyone has got my question!! For example: stock-wallpapers.com is the domain Post URL - stock-wallpapers.com/download-mykeyword-stock-wallpapers-here