I downloaded back link analyser to test some sites for backlink quality. Now I am trying to understand what the calculated data means for backlink quality.

1) What exactly is the "total class C addresses" number for and how it influence backlink quality?

2) What means the number for "unique C block IP addresses" in terms of backlink quality?

3) The deep link ration. Does it mean how deep is the page that gets backlinks? Shall I understand that more deep links mean higher backlink quality?

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