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At the start of August my Domain Authority was 52 but it has fallen to 46 over the course of 8 weeks. At first this was credited to the smaller index that SEOMOZ has taken and when this was certainly in line with our rivals results as well who all suffered a drop. When the index issue was fixed we did see an improvement, back up to 51 at the start of September, pretty much in line with all of our rivals. However our Domain Authority has dropped again and this time it is in complete isolation, none of our rivals have suffered anything like a 3 point drop. Our SEO has never been better with 65% of our keywords ranking in the top 3 and 86% ranking in the top 10. Im wondering what is causing this rapid drop in Domain Authority and what affect, if any, it was have on our future keyword rankings. Thanks, Emmet

However this does not seem to be in isolation. All of my competitors websites have taken a similar 1 or 2 points hit. I am thinking that as an industry we may have been affected by a mutual linking site being taken down, redesigned or just loosing its own domain authority. We do rank well for our keywords and we have been on a continual rise since I took over in January, we do a little bit of a guest blogging and I am trying to build links to the site but I am doing it slowly. Would anyone else have an idea on what has happened that would cause 4 sites in the same industry to take a 1 or 2 point hit? Thanks, Emmet