What do the column headers mean (DA, PA, TF, CF, DR, and LRD?) | PBN HQ - Domain Market Place

What do the column headers mean (DA, PA, TF, CF, DR, and LRD?)

TF=Majestic Trustflow  

CF=Majestic Citation Flow Metric,

DA is a MOZ metric and stands for Domain Authority.  

PA=Page authority, another MOZ metric.  

LRD is the linking root domians to the PBN Domain/URL.

DR is "Domain rating" and it is an ahrefs metric.

Here is some reading on TF/CF   http://www.oncrawl.com/citation-flow-vs-trust-flow-what-is-it/
Here is some reading on DA/PA  https://moz.com/community/q/domain-authority-vs-page-authority