ONPAGE · SEO GLOSSARY
NAP Consistency
Ensuring a business's Name, Address, and Phone number are identical across the website, Google Business Profile, and all online directories — a foundational local SEO signal.
Definition
NAP consistency refers to ensuring that a business's Name, Address, and Phone number are written identically everywhere they appear online: the website, Google Business Profile, Yelp, Yellow Pages, Bing Places, industry directories, and social profiles. "Identical" means character-for-character the same — "St." vs. "Street", "+1 (617) 555-0123" vs. "617-555-0123", and "Suite 4" vs. "Ste. 4" are all inconsistencies. Google uses NAP consistency as a local SEO signal: consistent information across authoritative sources reinforces that the business is real and reliably located where it claims to be. Inconsistent NAP across the web creates ambiguity about which entity is the authoritative one.
Why it matters for SEO
NAP inconsistencies reduce local ranking confidence. Google surfaces local pack results for location-based queries based on relevance, prominence, and proximity — and NAP consistency contributes to prominence (the confidence that this business exists and is who it says it is). For multi-location businesses, a different NAP per location is expected and correct; what causes problems is the same location appearing with different names, addresses, or phone numbers across different directories.
How DeepSEOAnalysis checks this
The audit checks NAP consistency within the domain: whether the business name, address, and phone number in `LocalBusiness` JSON-LD match what appears in the visible page content. Cross-domain NAP consistency (checking Yelp, Yellow Pages, etc.) requires external data sources that the crawl audit doesn't have access to. The audit also verifies that `LocalBusiness` schema has the required `address` object (`PostalAddress` type) with `streetAddress`, `addressLocality`, `addressRegion`, and `postalCode` fields populated.
Useful tools and resources
GLOSSARY
Related terms
onpage
Local SEO
SEO optimisation for location-based search queries — ensuring a business appears in Google's local pack and map results for "near me" and city-specific searches.
Read definition →structured data
Structured Data
Machine-readable annotations added to HTML — usually JSON-LD — that explicitly describe what a page is about to search engines and AI systems.
Read definition →structured data
Schema Validation
The process of checking that structured data (JSON-LD) on a page is correctly formatted and contains all required properties for its schema type.
Read definition →onpage
E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness)
Google's quality framework for evaluating content — especially important for YMYL (Your Money, Your Life) topics like health, finance, and legal.
Read definition →See how your site scores on NAP Consistency.
The free DeepSEOAnalysis audit checks nap consistency and 100+ other signals. Full report, no signup.
Run a free audit →