i found a spammy site and then i extracted all the links from the spammy site comments section and i found huge list of urls, and i checked the links of every domain and found that the average links from every domain is about 300-400 links and DA IS 60 AND PA IS 70 when you type urls in the open site explorer. And they are all high pr links from comments guestbook,trackbacks etc. They are all dofallow and the average DA is 80 and PA IS 40 or greater for each backlink. some of the sites rank for high competetive keywords only having 600-1000 indexed backlinks. anyways my problem right now is i am having big trouble with backlink checker 2 from scrapebox i have set up api key/ free from moz and i am also using 30 semidedeicated proxies and my maximum connections is 2 for link checker. when i am using backlink checker i finde it very odd to see error and delay status. how can i improve backlink checker 2? to give the best results. i will appreciate if anybody could giev some advice. Thanks.