NAP (Name, Address, Phone)
NAP stands for Name, Address, and Phone number, the three core pieces of business contact information that must be identical everywhere they appear online. Consistent NAP is a foundational local SEO signal that tells search engines your business is real and trustworthy.
NAP is the least glamorous and most overlooked piece of local SEO. It stands for Name, Address, and Phone number. The rule is simple and unforgiving: these three details must be byte-for-byte identical everywhere your business appears online. Get that right and you have a foundation. Get it sloppy and you quietly bleed local rankings for years without knowing why.
Search engines use your NAP as a fingerprint. When Google sees the same business name, address, and phone number repeated consistently across your website, your Google Business Profile, Yelp, Facebook, directories, and citations, it gains confidence that your business is real, established, and located where you say. Inconsistency does the opposite. It creates doubt, and doubt costs you visibility in the local pack.
What counts as a NAP inconsistency
- Name variations: 'Joe's Plumbing' on one site, 'Joe's Plumbing LLC' on another, 'Joe Plumbing Co' on a third.
- Address formatting: 'Suite 200' versus 'Ste 200' versus '#200', or '123 Main Street' versus '123 Main St.'
- Phone numbers: a tracking number on your site but the real line on your Google profile.
- Old data: a previous address or disconnected number still living on directories you forgot about.
To a search engine, 'St.' and 'Street' on two listings can read as two different businesses. Consistency is not pedantry, it is the signal itself.
How to keep NAP clean
Pick one canonical format for your name, address, and phone, write it down, and treat it as law. Then audit everywhere your business is listed and fix anything that does not match exactly. Pay special attention to old directory listings and any address or phone change you made in the past, because stale data lingers in places you have long forgotten.
| NAP element | Common mistake | Fix |
|---|---|---|
| Name | Adding or dropping 'LLC' inconsistently | Pick one exact legal-or-brand name and use it everywhere |
| Address | Abbreviating 'Street' on some listings only | Standardize every abbreviation and suite format |
| Phone | Tracking number on site, real number elsewhere | Use one consistent primary number across all listings |
Example
A dentist moves offices and updates the address on her website and Google Business Profile, but a dozen old directory listings still show the previous suite number. Months later her local rankings have slipped and she has no idea why. The fix is unglamorous: hunt down every stale citation and update the address to match the new canonical NAP exactly. Within weeks the local signals firm back up.
lightbulbPRO TIP
Run a quick audit by searching your business name and phone number in quotes on Google. The listings that surface are your citation footprint. Scan them for any name, address, or phone that does not match your canonical version, and fix the mismatches one by one.
targetNAP is the floor, not the ceiling
Clean NAP will not rocket you to the top of the local pack by itself. But broken NAP will cap how high you can ever go, because it undermines the trust everything else is built on. Fix it first, then layer the rest of your local SEO on top of a solid foundation.
One format, everywhere
Choose a single canonical Name, Address, and Phone format and make every online listing match it exactly. Consistency is the trust signal that powers local rankings.
NAP is one pillar of a larger local strategy. For the complete approach, read my guide on local SEO.
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