Another point Google's John Mueller made in the hangout from earlier this week at the 42:47 mark was that Google does not have a "website authority score." He said "we don't have anything like a website authority score."
Here is the video embed where he said this:
The interesting part is that Google did say they do use overall sitewide signals for new pages to rank. John Mueller said this back earlier this year, "there are some things where we do look at a website overall though."
But I guess Google doesn't have a "website authority score."
Forum discussion at Google+.
