What a backlink is worth, and what it is not worth
A backlink is another website linking to yours. Google still treats links as one of the strongest signals of whether anyone outside your own marketing department thinks your page is worth reading. But the value is wildly unequal. One editorial link from a genuinely relevant, well-trafficked site can outweigh several hundred directory listings, and low-quality bulk links now range from worthless to actively harmful.
The three things that decide a link's value: relevance, whether the linking page covers a topic related to yours; authority, how much trust the linking domain has earned; and placement, whether the link sits inside real content or is buried in a footer with two hundred other links.
