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Hi, The guys here have already left some great comments. It's hard to guess why / where the links are coming from without seeing them, but I agree with William that five per week seems low for an automated bot. Those things usually do thousands, unless it's being run by someone who doesn't want you to notice the activity. Either way, a person is probably behind the activity at its root - do you have any idea who might want to maliciously hurt your website? There is a possibility that the activity is not being carried out in order to directly hurt you, but that your site is part of someone's larger negative SEO attack against someone else. Some negative SEO attacks will target a business (let's say Nordstrom's, for purpose of example). They'll point thousands of links to http://shop.nordstrom.com/ from some terrible pages, but will sometimes mix in links to other sites to muddy the waters a bit. Are there any other sites linked to from the same pages as yours? Any trends you can spot? Moz and OSE sometimes miss the real underbelly of the internet - the stuff that's available if you know where to look for it (and Google usually knows where to look for it) but for the purposes of regular marketing / SEO, is fairly irrelevant. My former agency built its own backlink analysis tool and did the same thing. We could do deep crawls to find this crap if we needed to (and so can Moz) but it's thankfully rare that situations like this come along that require such a deep look at links. Moz, Majestic, Ahrefs, etc. will show you links from the part of the internet that they believe counts. Frustrating when things like this happen, but if you are finding these in WMT then you should have sufficient information to go through with a disavowal and / or reconsideration request.