Guide (draft)

NAP Consistency Explained

Name, address and phone number. Why mismatched details quietly suppress local rankings, and how to audit and fix them without breaking anything.

NAP stands for name, address and phone number. Consistency matters because Google is trying to confirm that one real business exists at one real place, and every conflicting version of your details makes that confirmation slightly harder.

This guide is about the data itself. For where those details should be published and which directories are worth the effort, see local citation strategy.

NAP is not a growth lever. It is a hygiene problem. Fixing it rarely wins new rankings on its own, but leaving it broken can hold back everything else you do.

On this page

What NAP means in practice Why inconsistency hurts Where inconsistencies come from How to audit yours Fixing in the right order Edge cases Key takeaways

What NAP Means in Practice

Pick one canonical version of your business details and use that exact version everywhere. The rule is not that the details are correct, it is that they are identical.

Name: your real trading name, without added keywords or locations.
Address: one format, including how you write unit or suite numbers.
Phone: one primary number, in one format.

Write the canonical version down in one document. Every future listing, invoice footer and directory profile is copied from that, not typed from memory.

Why Inconsistency Hurts

Search engines treat your business as an entity and gather evidence about it. Conflicting evidence lowers confidence, and lower confidence shows up as weaker prominence.

It matters more now than it did five years ago, because AI driven results need to state facts about you confidently. A system that finds three different phone numbers has to decide which to trust, and the safest choice is often to feature a business it is more certain about.

Duplicate or conflicting listings split the signals that should accumulate to one profile.
Old addresses can keep you appearing in the wrong area.
Dead phone numbers send real customers to nowhere, which is the worst outcome of all.

Where Inconsistencies Actually Come From

Almost nobody creates these on purpose. They accumulate through ordinary business events over years.

Moving premises and updating only the obvious places.
A rebrand or a change from a sole trader name to a company name.
Call tracking numbers published on directories instead of the main line.
An old listing created by a former employee or a previous agency.
Data aggregators propagating an old detail long after you fixed the source.
Franchise or supplier directories listing a head office address.

Illustrative example

An electrician moved 400 metres up the road in 2021. The Google profile and the website were updated the same week. Four years later a trade directory, two council listings and an old aggregator record still carried the previous address, and the old address still appeared in autocomplete. Nothing dramatic broke. The business simply looked slightly less certain than the competitor down the road, in a market decided by small margins.

How to Audit Yours

You are looking for every place your details appear, and every version that disagrees with your canonical record.

Search your business name in quotes, and again with the old name if you rebranded.
Search your phone number as a string, which surfaces listings you have forgotten.
Search your old address if you have moved.
Use a citation audit tool to scan the main directories and aggregators in one pass.
Record everything in a spreadsheet with the URL, the version found and a login note.

Fixing in the Right Order

Fix by influence, not by how easy the login is. Some sources feed dozens of others, so correcting them cleans up problems you never manually touch.

1. Google Business Profile. Everything else is downstream of this.
2. Your own website, including the footer, contact page and schema markup.
3. Data aggregators and the big directories, which propagate widely.
4. Industry and local directories.
5. Social profiles, which are often the last to be updated and the first to be seen.

Where a duplicate listing exists, claim and merge rather than deleting, so any reviews attached to it are preserved.

Edge Cases Worth Knowing

A few situations legitimately break the identical everywhere rule, and knowing them saves a lot of pointless tidying.

Call tracking numbers: acceptable when the main number remains the primary on your profile and site.
Suite numbers: keep the format identical, but do not invent one to look more established.
Service area businesses: hide the address rather than publishing a home address inconsistently. See service area SEO.
Multiple locations: each location needs its own consistent set. See multi-location SEO.
Rebrands: update the source records first, then work outward, and expect it to take months to settle.

Key Takeaways

NAP consistency will not make you famous, but inconsistency will quietly hold you back.

Choose one canonical version and copy it everywhere.
Conflicting data lowers confidence, and confidence drives prominence.
Most problems come from moves, rebrands and old listings.
Fix the profile and site first, then aggregators, then the long tail.
Claim and merge duplicates so reviews are not lost.