Domain Rating (DR) is an Ahrefs metric that shows the relative strength of a website’s backlink profile. DR is measured on a logarithmic scale from 0 to 100
Trust Flow (TF) is a score based on quality, on a scale between 0-100. Citation Flow helps to measure the link equity or “power” the website or link carries
Domain Authority (DA) is a search engine ranking score developed by Moz that predicts how likely a website is to rank in search engine result pages (SERPs)