Domain Authority – although impossible to see an exact Google DA for a domain – is a rough value, typically between 0 and 100, that expresses the total value of inbound links based on those sites’ individual DA. This is a rough but not exact public version of Google’s old PageRank (or tbPR – toolbar PageRank), which was expressed as a value between 0 and 10. For example, domains like Microsoft.com and Dell.com typically had a tbPR of 10/10.
