Forum Moderators: Robert Charlton & goodroi
Gary Illyes: It’s not just links. It looks at a bunch of different things related to the source site. Links is just the most visible thing and the one that we decided to talk most about because we already talked about about links in general.
But it looks at different things on the source site, not on the target site, and then makes decisions based on those special signals.
I don’t actually want to reveal more of those spam signals because I think they would be pretty, I wouldn’t say easy to spam, but they would easy to mess with. And I really don’t want that.
But there are quite a few hints in the original, the old Penguin article.