What Is NAP Consistency?
NAP stands for Name, Address, and Phone number — the three core pieces of information that identify your business online. NAP consistency means this information appears exactly the same across every directory, map, and review site where your business is listed.
Search engines like Google cross-reference your NAP data across dozens of sources. When your listings match, they gain confidence that your business is real and legitimate. When they don't — say your address is abbreviated on Yelp but spelled out on Google — it introduces doubt. That doubt can mean lower rankings in local search results, fewer customers finding you in map packs, and a worse experience for anyone trying to contact you.
A NAP audit (also called a citation audit or a NAP consistency check) is the process of finding every listing and comparing it against your canonical details, usually your Google Business Profile. NAPCHKR is a free NAP checker that runs that audit for you; if you would rather do it by hand, see how to check NAP consistency step by step.
A Free NAP Checker That Scans Your Real Listings
Most free NAP checkers ask you to open each directory yourself, copy what it shows, and paste it into a form to compare. NAPCHKR does the looking. It pulls your Google Business Profile and fetches your live listings on Bing, Foursquare, HERE, Tripadvisor and Nextdoor, comparing name, address, phone and website on each. It then finds your Yelp, BBB, YellowPages and Facebook pages through Google search, links each one, and compares the phone number Google shows for it. Nothing has to be copied and pasted, and the whole audit takes about 30 seconds. Medical practices are also checked against the federal NPI Registry.
You get one row per directory with a plain-language status: a match, a field that differs, a listing that could not be found, or a possible duplicate with a different phone. Small formatting differences, such as a missing suite number or a different legal suffix, are marked with a ≈ rather than counted as errors. Open any listing from its link and fix it at the source.
What a NAP Audit Checks
A thorough NAP audit looks beyond a wrong phone number. These are the problems it looks for. NAPCHKR flags the first four on every listing it compares in full, and marks small formatting differences with a ≈ so you can judge them yourself:
- Business name variants — an old trading name, a keyword-stuffed name on one directory, or a franchise location labeled differently from the others. A different legal suffix ("LLC", "Inc.") is noted, not flagged.
- Address errors — a previous address that was never updated after a move, or a wrong street number. "Street" versus "St." is treated as the same address; a suite number present on one listing and absent on another is noted with a ≈.
- Phone numbers — a tracking number, a retired line, or a personal mobile listed instead of the main business number.
- Website domain — a listing pointing at an old domain, a social profile, or a competitor's site.
- Duplicate and missing listings — no listing at all on a directory your customers use, or on Yelp, BBB, YellowPages and Facebook, a page showing a different phone number from your main one, which usually means a duplicate.
How NAPCHKR Works
1
Enter your business details
Type your business name, website URL, and city/state, then confirm your Google Business Profile. The more detail you provide, the more accurate the results.
2
We check 10 directories
NAPCHKR checks Google Business Profile, Bing, Foursquare, HERE, Tripadvisor and Nextdoor directly, then finds your Yelp, BBB, YellowPages and Facebook listings through Google search — all in about 30 seconds.
3
Review your results
Each listing is compared with your Google profile and the status says exactly what differs — name, address, phone or website. Open any listing from its link to fix it on that platform, or follow the step-by-step fix guide for that directory.
Why NAP Consistency Matters for Local SEO
Search ranking signals
Google's local ranking algorithm considers citation consistency as a key factor. Businesses with matching NAP information across directories tend to rank higher in local pack results and Google Maps searches. Even small differences — a suite number present on one listing but absent on another — can weaken these signals.
Customer trust
When a potential customer finds conflicting phone numbers or addresses for your business, they're less likely to call or visit. Consistent listings build credibility and reduce friction between discovery and contact. A wrong phone number on a single directory can mean lost revenue.
Frequently Asked Questions
What is a NAP audit?
A NAP audit is a check of every place your business is listed online — directories, maps, review sites and social profiles — to confirm that the name, address and phone number match your canonical details, usually your Google Business Profile. A manual NAP audit means searching each directory and comparing by hand; our guide to how to check NAP consistency walks through it. NAPCHKR automates it by scanning 10 directories and flagging every mismatch in about 30 seconds. Run one whenever you move, change phone numbers or rebrand, and at least once a quarter otherwise.
What is NAP consistency and why does it matter?
NAP stands for Name, Address, and Phone number. NAP consistency means your business information is identical across every online directory — Google, Yelp, Bing, Facebook and others. Search engines use NAP data as a trust signal: if your listings match, your business looks more legitimate. Inconsistent NAP data can confuse search engines and customers, potentially lowering your rankings in local search results.
How does NAPCHKR check my business listings?
Enter your business name, website URL, and city/state, then confirm your Google Business Profile. NAPCHKR checks Bing, Foursquare, HERE, Tripadvisor and Nextdoor through their APIs and public pages and compares each against your Google profile on name, address, phone and website. It finds your Yelp, BBB, YellowPages and Facebook listings through Google search results, links each one, and compares the phone number shown there.
Is NAPCHKR free to use?
Yes. NAPCHKR is completely free with no account required. Enter your business details and get results in about 30 seconds.
What directories does NAPCHKR check?
NAPCHKR checks 10 sources: Google Business Profile, Bing (via Azure Maps), Foursquare, HERE, Tripadvisor, Nextdoor, Yelp, Better Business Bureau (BBB), YellowPages and Facebook. Medical practices are also checked against the federal NPI Registry.
How do I fix NAP inconsistencies?
After running an audit, look at the rows whose status says what differs. Open the directory listing from the link and update your business name, address, or phone number to match your Google Business Profile. Fix Google, Yelp and Facebook first, as they are the listings customers check most. Our directory fix guides walk through the exact steps for each of the 10 directories.