Hello Moz! I just subscribed for your Moz Pro program. Amazing stuff! On open site explorer, I found a number of links to my site from a page called with a very high page authority and high domain authority, but also a high spam score (8 or 9, one with a 10). I say multiple spam scores, because it's strange, there are what appears variations of the same url, and each one is considered a link.  For instance, there's an abc.linkstomysite.com and xyz.linktomysite.com, and 123.linktomysite.com... there are about 15 of these (all with the spam scores mentioned above)! This must have been some old SEO work done I payed for back in the prehistoric SEO days. However, my fear is the following: Removing these links, and then losing some potentially strong link juice.  I don't have many high DA or PA links to my site, and these are some major ones. The domain in question "linktomysite.com", when entered into OSE, only has a spam score of 4, and it has a domain authority of 45 and page authority of 37.  My site has a spam score of 2 and no messages from google regarding a penalty, but an overall reduction in google traffic over the years (just keeps slowly dropping... as if a weight is pulling me down?) What do you think, should I leave, or remove?  The linkstomysite page is just a LONG page full of links, with short descriptions, nothing of value, but with a an old domain age (relatively). Most important for me is keeping at least some ranking/visibility, while I personally work on building quality links and helpful content. thanks!

It could be that I am missing something really obvious however we are getting the following error when we try to use the Moz tool on a client website. (I have read through a few posts on 403 errors but none that appear to be the same problem as this) Moz Result Title 403 : Error Meta Description 403 Forbidden Meta Robots_Not present/empty_ Meta Refresh_Not present/empty_ Xenu Link Sleuth Result Broken links, ordered by link: error code: 403 (forbidden request), linked from page(s): Thanks in advance!

Since your scale (like PageRank) is a logarithmic scale, it makes it hard to judge the distance between 2 scores.  Can you give me a rule of thumb.  For PageRank,  each jump is an exponential jump - so that a PR6 is perhaps 10 times stronger than a PR5. What is the log base that SEOMoz uses.   Should I assume that a 60 is 10 times stronger than a 50? This is important when it comes to measuring progress because growth is going to get more difficult as you move up the scale and I need to communicate the distance between our current Authority score and our goal. Thank You!