How much of a factor (for Google) are new referring domains on daily basis. What I mean is that when I look at the backlink profile of pretty much any big authority website the first thing you will notice (on ahrefs for example) is that they have 4/5/6/7+ new referring domains per day! How important is that to Google? I know, i know. At the end of the day it only matter how strong each of those backlinks is individually, but still I wanted to hear other peoples opinion about this matter.