Going through AHREFS for a client. We are trying to identify the backlinks for competitors who have a better URL Rating and Domain Rating. I am looked at one such competitor with UR and DR scores much better than my client. I see that this competitor apparently uses constantcontact.com (to send her client's newsletter, perhaps) and she has many such links to constantcontact "archive" with very high URL rating (93). Does this say that having a constantcontact campaign of some kind helps with SEO?