The Triangle of Link Building
The Triangle of Link Building is Bonzer's own model for what makes a link valuable. It reduces the assessment of a backlink to three corners: authority, trust and relevance. A strong link scores on all three, and when one corner is missing the value drops noticeably.
Authority. The link has to come from a page with real weight in the eyes of search engines. A recommendation from an established publication or a strong industry site moves more than ten links from pages nobody knows.
Trust. The sender must be a site that both Google and real people rely on: edited media, organizations, companies with a name to protect. Link networks and link farms can look authoritative on paper, but the trust is borrowed, and the algorithms catch up with that sooner or later.
Relevance. The context has to make sense. A link to a running shoe shop weighs more in an article about running than on a random lifestyle blog, however strong that blog is. Relevance tells the search engine that the recommendation is natural.
The model guards against the classic mistake in link building: counting links instead of weighing them. Your links should not look natural, they should be natural. In SEO that distinction decides whether a link profile survives Google's spam updates. Turning the model into concrete links is what the guide to link building does.