Glossary

Vector Search

Vector search retrieves content by comparing embeddings, matching passages on meaning rather than exact wording. It lets an engine surface a relevant passage even when the buyer's phrasing shares no keywords with the page, which is why AI answers often quote content that never targeted the query as written.

In plain terms

The engine looks for pages that mean the same thing, not pages that use the same words.

Why it matters

Keyword lists stop being a plan. Coverage of a genuine concept — clearly explained, in one place — is what makes a page findable across the long tail of phrasings buyers actually use.

How to apply it

  • Cover a concept completely on one page instead of splitting it across near-duplicates.
  • Write plainly; jargon-dense text matches fewer real questions.
  • Consolidate overlapping pages so retrieval is not split between them.

Example

A benefits-administration company's glossary page on "COBRA continuation coverage" gets surfaced by an AI engine in response to the differently worded query "can I keep my health insurance after I quit my job", because vector search matched the two on meaning rather than shared keywords.

Related terms

Back to the full glossary (75 terms).

Ranking is no longer enough

You need to be cited, mentioned, and recommended.

Being cited, mentioned, and recommended are three different outcomes, and most brands only ever achieve the first one. Ranking is no longer enough because AI engines answer buyers directly and name only a short list of vendors as the recommendation — everyone else is cited in passing, if at all. Get a free AI Visibility Report to see exactly where your brand appears today across ChatGPT, Google AI Overviews, Gemini, Perplexity, and Copilot, where competitors are winning the recommendation instead, and what's keeping you from moving up the shortlist.