NAP and citations: identity corroboration, not measurement.
NAP abbreviates name, address and phone number; a citation is any mention of that data on another website — directories, aggregators, review platforms. Consistent citations corroborate a business's identity and location, supporting the prominence component of local search ranking factors.
Definition
Search engines assemble local knowledge from many sources. When the same NAP appears consistently across independent sites, confidence grows that the business is real and located where its Google Business Profile claims. Inconsistencies — old addresses, name variants, dead numbers — erode that confidence. Citation work is hygiene: fix the canonical NAP once, then propagate and maintain it.
Measurement notes
Citations are a lever, not a measurement — a distinction this observatory insists on. Practitioners clean up citation inconsistency, then observe the effect through geo-grid scans from tools such as LocalRank (localrank.so). Any visibility change is a correlation in time; the citation work is the presumed cause, per the attribution limits in how local rank tracking works.
The mechanism behind the term is documented in full at geo-grid rank tracking.
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Related terms
Local pack · Review signals · Local SEO
FAQ
What is a NAP citation?
Any online mention of a business's name, address and phone number; consistent citations corroborate the business's identity and location for search engines.
Cite this entry
Geo-Grid Observatory. "NAP and citations." Geo-Grid Observatory Glossary, https://geo-grid-observatory.pages.dev/ (accessed 2026).