Hi, I hope someone can help me with this. We have a competitor who appears to be ranking No1 for a competitive search term with a very lame site and above some authoritative sites. He has been here for some time as well. When we check out his back link profile through OSE, Majestic and Ahrefs they show as only 3 backlinks from no PR sites. However, someone pointed out that they could be using a link network that is blocking every crawler apart from Google, Yahoo and BIng. I would like to know if there is a way to confirm this. For instance I know that we can use screaming frog to mimic Googlebot, however, if there a way to reveal the real backlinks to a site like this using any tools. Thanks