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So OK we have a domain authority currently of 41, we are well established but unfortunately we don't have any pages with PA.  I have a fair idea of why this is the case but want to get some other opinions before I form my strategy. 1.It appears our internal link structure is not great and is not very organised 2.  It appears we have 58 links going externally on some pages.  Some of these external links are social media icons in the footer which are followed. Is there any other factors I should be aware of when building PA on some of my inner pages. Any Thoughts would be appreciated.