I was asked a seemingly simple question by a client today. Should low level sites he owns be scrapped and used for their backlinks by 301 redirecting the sites.
Simplest Answer: I think it’s hard to quantify if a site is low level.
Ultimateseo.org has a DA 19, that seems pretty low. But keep in mind it used to be a DA 40 before Moz changed it’s scoring. Keep also in mind that change in scoring showed no reflection in the site’s ranking. I recommend 301 redirecting based on anchor text