What "buying a backlink" actually means
In practice it means paying a website to publish something that links to you — either a new article you or we write, or a link added to a piece they have already published. The money buys the publisher's time and their space. It does not buy a ranking, and anybody selling you one is selling something they cannot deliver.
That distinction matters more than it sounds. A link is a signal among many, and its value depends almost entirely on where it sits: a relevant site with real readers, in a sentence that makes sense without the link, is worth a great deal more than the same money spent on ten sites nobody visits.
