What is Co-citation?
Two pages frequently cited together, implying topical relationship. Being co-cited with established authorities borrows relevance no single link states explicitly.
Related terms
Co-occurrence
Brand or keyword mentions appearing near links or topics without direct anchors. Engines read co-occurrence as topical association, which is why unlinked mentions still move understanding.
Digital PR
Earning editorial coverage and links with newsworthy data, tools, or stories. Citation hubs and original research are the repeatable assets behind most successful campaigns.
Citation Share
The share of AI-answer citations in a topic that point to your pages versus competitors. It is the GEO analogue of share of voice: who gets quoted when the model answers money queries.
Off-Page SEO
Everything that builds a site’s reputation elsewhere: backlinks, mentions, reviews, and digital PR. Off-page signals validate what on-page content claims about expertise.
Referring Domain
A unique site linking to you. Domain diversity matters more than raw link counts: 100 links from one site look like one relationship, not 100 votes.
Link Equity
The ranking value passed through a link, shaped by the source’s authority, relevance, and number of outbound links. Internal links distribute equity; external links earn it.