How well-known a business is, considered by Google alongside other factors when assessing local search results.
Prominence describes how well known a business is in the context of local search. It is not a field an owner can fill in or a public score that can be increased by a specified number of points. Google identifies it alongside other considerations, so familiarity with a business does not make location and relevance irrelevant.
Public evidence about a business can come from different places. Google’s explanation mentions links and reviews, but that is not a recipe for manufacturing either. A genuine reference from a relevant organization and an honest customer account have a different basis from paid manipulation. Treat public recognition as something to earn and represent accurately, not a numerical quota.
For planning, separate what you can observe from what you cannot. You can record new coverage, customer feedback and relevant referring sites. You generally cannot isolate the exact weight a search system gave each item in a particular result. A visibility change after a publicity campaign may be worth investigating without being proof of a single ranking mechanism.
Takeaway: Build a business people can recognize and verify, then maintain accurate public information. Avoid promises that a fixed number of reviews or directory entries will buy a particular position.
Example
A longstanding repair shop receives a local newspaper feature about its apprenticeship program. The article identifies the actual business and links to useful information. The owner records the coverage and ensuing enquiries without assigning the article an invented prominence score.
What to check
Use platform-compliant ways to invite genuine feedback, and distinguish recognition from manipulated engagement. Do not equate a third-party authority metric with Google’s unpublished local ranking calculations.
For more detail, see Google local ranking guidance.