Lack of standardization as a threat to measurement validity: The case of the Go/No-Go Task http://nogo.flexiblemeasures.com/ (data by @Wessel_Lab)pic.twitter.com/VfFTNWOOLo
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single domain the content (identical) gets huge ranking boost. Weird and kind of annoying but empirically shown time and again.
Search "seo subdomain vs subfolder" to see examples/evidence discussed. Annoying how Google runs the web but I guess kow tow is only way. 
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