NAP Consistency: Why Your Name, Address & Phone Number Must Match Everywhere
By Mike Martin • More Leads Local
NAP stands for Name, Address, and Phone number. It sounds simple, but NAP consistency — ensuring these three pieces of information are identical everywhere your business appears online — is one of the most fundamental local SEO ranking factors.
Why NAP Consistency Matters
Google cross-references your business information across hundreds of websites, directories, and platforms. When your NAP details match perfectly everywhere, Google gains confidence that your business is legitimate and trustworthy. When they don't match, Google's confidence drops — and so does your ranking.
Think of it from Google's perspective: if one directory says your business is at "79 Lynch Lane" and another says "79 Lynch Ln," is it the same business? Probably. But Google's algorithm doesn't assume — it needs consistency to be certain.
Where NAP Consistency Matters Most
Your NAP information should be identical across:
- Your Google Business Profile — this is your primary source of truth
- Your website — header, footer, contact page, and schema markup
- Online directories — Yell, Thomson Local, Yelp, FreeIndex, etc.
- Social media profiles — Facebook, LinkedIn, Instagram
- Industry-specific directories — Checkatrade, Bark, TrustATrader, etc.
Common NAP Inconsistencies
These are the mistakes we see most often:
- Using "Street" on some listings and "St" on others
- Different phone numbers (mobile vs landline vs tracking numbers)
- Old addresses that were never updated after a move
- Trading name vs registered company name inconsistencies
- Missing unit or suite numbers on some listings
How to Fix NAP Inconsistencies
Start with your Google Business Profile. Whatever NAP information is listed there should become your standard. Then systematically audit every place your business appears online and update any inconsistencies to match your GBP exactly.
This is tedious but essential work. It's one of the first things we check when auditing a client's local SEO presence.
NAP and Your Website
Your website should display your NAP information consistently — typically in the footer of every page. Ideally, this should also be marked up with LocalBusiness schema so Google can easily parse it.
The Bottom Line
NAP consistency isn't glamorous. It won't make headlines. But getting it wrong can quietly undermine everything else you do for local SEO. Get it right, and you remove a significant barrier to higher local rankings.