Advanced Link Counts

Each domain name is dissolved into a unique IP address, under which the respective website is accessible. The IP address, in turn, has various classes (AAA.BBB.CCC.DDD). A high C-class popularity means that the website has backlinks that originated from many different IP addresses with different C-classes.

cPop The number of linking ClassC addresses to the domain.
IPpop The number of linking IP addresses to the domain.
DomPop page The number of linking domains to the page.
IPpop page The number of linking IP addresses to the page.
cPop page The number of linking ClassC addresses to the page.
DomPop topdom The number of linking domains to the top-level domain.
IPpop topdom The number of linking IP addresses to the top-level domain.
cPop topdom The number of linking ClassC addresses to the top-level domain.

What is a Top-Level Domain / Domain?

A Top-Level Domain is, for example, .org. It is virtually the top level of a domain.

A Topdomain (referring root-domain) is wikipedia.org.

A Domain, for instance, is en.wikipedia.org.