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Hi, I think the post title is self explanatory
I have found many posts that talk about backlinks, doing a little search I learned that they are used to rank a website

My question is:

how are they sold?

Wat Is a PBN ?

from what I understood they are posts that redirect to the website

but I can't understand, what should I give to the buyer ?

and also in another quick search talks about different types of backlinks

Could someone guide me on this?

I'd appreciate it

thanks for your time

Backlinks are scraped through Scrapebox (or an alternative) and filtered by backlink creating software like GSA SER or Ranker X, then filtered by some filters like, moz metrics etc.

PBN stands for Private Blog Network which is usually created by expired domains. But the whole purpose behind PBNs is to back up a money site or money sites with tier 1 backlinks.