Paste your business Name, Address, and Phone number exactly as they appear on your website, Google Business Profile, Yelp, and other citations, and instantly see which sources disagree. Smart matching knows that "Suite 100" and "Ste 100" are the same thing, so it only flags differences that matter. Free, no signup, and nothing you type leaves your browser.
What is NAP consistency?
NAP stands for Name, Address, Phone number, the three pieces of business information that appear on your website and in every citation: Google Business Profile, Yelp, Facebook, Apple Maps, Bing Places, BBB, and dozens of directories. NAP consistency means all of those sources show the same information.
Search engines cross-reference citations to verify that your business is real and located where you say it is. When sources disagree (an old phone number on Yelp, a previous address on Facebook, "Smith Injury Law LLC" in one place and "Smith Injury Law" in another), that verification gets weaker, and your local rankings can suffer. Inconsistent citations are one of the most common, and most fixable, local SEO problems.
How this checker works
The comparison runs in two steps. First, every value is normalized the way search engines normalize citation data, so harmless formatting differences don't trigger false alarms:
| You entered | Compared as |
|---|
| 123 East Main Street, Suite 100 | identical: USPS abbreviations (Street→St, East→E) and unit designators (Suite, Ste, Unit, #) are equivalent |
| 123 E Main St #100 |
| (801) 555-0100 | identical: phone numbers are reduced to digits and the +1 country code is ignored |
| +1 801.555.0100 |
| Smith Injury Law, L.L.C. | identical: punctuation, case, and suffix spelling are normalized |
| SMITH INJURY LAW LLC |
Second, the normalized values are compared against the majority version and every difference is classified:
- Match: identical, nothing to do.
- Formatting only: same information, different formatting (abbreviations, punctuation, ZIP+4). Search engines normalize these too, so they're low priority.
- Suffix differs: the business name appears with and without a legal suffix like LLC or Inc. Pick one form and use it everywhere.
- Verify: almost identical but not quite, like
Ste 100 vs Ste 200. This is either a typo or outdated data, and it's worth checking, because a wrong unit number is a real inconsistency. - Mismatch: genuinely different information. This is what hurts local rankings; fix it at the source.
Where to check your citations
Open each of these, search for your business, and copy the name, address, and phone exactly as displayed into a row above:
- Your website: footer and contact page (this should be your canonical version)
- Google Business Profile: the panel that appears when you search your business name
- Yelp, Facebook, Apple Maps, Bing Places: the big four after Google
- BBB, Yellow Pages, Nextdoor, industry directories: and any directory you've ever submitted to, including your OnToplist listing
How to fix inconsistencies
Decide on one canonical version first. The tool suggests the majority version, but the deciding vote belongs to whatever the USPS and your legal registration say. Then update the outliers at the source: claim the listing if you haven't, edit the fields, and save. Most platforms update within days; aggregator-fed directories can take weeks. Re-run this check after each round of fixes, and keep the canonical block handy for every new submission so inconsistencies never creep back in.
Frequently Asked Questions
What does NAP stand for in SEO?
Name, Address, Phone number: the core business information search engines cross-reference across your website and directory citations to verify your business. Consistent NAP data across sources is a foundational local SEO signal.
Do abbreviations like "St" vs "Street" hurt NAP consistency?
No. Google and other search engines normalize standard formatting differences: USPS abbreviations, punctuation, capitalization, and the +1 phone prefix. That is why this tool marks them "formatting only" instead of flagging them as errors. What hurts is genuinely different data: an old phone number, a previous address, or a different business name.
Does "Smith Injury Law LLC" vs "Smith Injury Law" count as an inconsistency?
It is a minor one. Search engines usually connect the two, but the safest practice is to pick one form of your name (with or without the legal suffix) and use it identically everywhere. This tool flags suffix differences separately so you can standardize them without treating them as emergencies.
How many citations do I need to check?
Start with your website plus the big five: Google Business Profile, Yelp, Facebook, Apple Maps, and Bing Places. Those carry the most weight. Then work through BBB, Yellow Pages, and the industry and local directories you have submitted to over the years. Old submissions are where outdated addresses and phone numbers usually hide.
How long does it take for citation fixes to help rankings?
The listings themselves usually update within days of editing them. The ranking effect is gradual: search engines need to recrawl each source and rebuild confidence in your data, which typically plays out over several weeks to a couple of months.
Is my business data stored when I use this tool?
No. The entire comparison runs in your browser using JavaScript. Nothing you type is sent to our servers, stored, or logged.
More free tools are on the way. See the SEO tools hub for what's live and what's next. And once your NAP is consistent, add your business to OnToplist to put another clean, consistent citation to work for you.