For example, if I have a site about home improvements, and you have a site about plumbing.
If we want to “collaborate” and make Google understand more so that your site is about plumbing, what I’d do is, I’d write an article about one of my recent home improvement projects, such as a recent reno that I just completed.
Within this article I would talk about plumbing in some way, maybe the renovation needed the toilet to be moved to the other site of the bathroom as it was being re-done.
I could then mention your site example “Your Name Plumbing” I would also make it so that “Your Name Plumbing” would be underlined as a hyperlink so that when you clicked on that link, it’ll bring you to that website.
So what’s the anchor text in this instance? If you said “Your Name Plumbing” you got it right.
If you said “Your Name Plumbing” you got it right.
So just help you understand a little more clearly, Google is only (ha ha only) a machine that continuously learns, so our job as SEOs are to help Google learn.
Since my site is about home improvements, and I send a link to your site about plumbing, it makes sense to most people and including Google, that our two sites should be linked up as they are relevant to each other.
However if my home improvement website was linked to your mobile mechanic business there is not much relevance there, and it could confuse Google, and because the connection isn’t clear, your site and mine, will not be ranked as highly as it could if the links were more relevant.