Is it good if I have two or more links on one site? I give you an example: I find a blog related to my site, post a comment on two different topics. Will that be counted as two backlinks? Or is only the first link counted by google? What if I choose the same keyword for both comments?
That will be considered as 2 backlinks. If you choose the same keyword for both comments, they're still 2 backlinks, but maybe not good because Google may thinks that's keyword spam.
These will count as 2 backlinks from the same domain. Better than just one backlink but worse than 2 backlinks from different domains.