The NAP Consistency Checklist: A 7-Step Local SEO Audit That Actually Works

Most local SEO advice on NAP consistency is wrong. Or rather, it’s right in the abstract and useless in practice. “Make sure your name, address, and phone are the same everywhere.” Yes. Now go and do that across 47 directories with profiles you set up in 2018, half of which you don’t have logins for, while running your business.

This is the post that actually walks you through it. We’ve audited NAP consistency for over 130 local businesses across Surrey and Greater London. The same problems show up every time. Here’s the cleanup process that works, the directories that genuinely matter for UK businesses in 2026, and the tools that pull a four-hour audit down to about 30 minutes.

What NAP Actually Is (And the Variations Google Sees as Different)

NAP stands for Name, Address, Phone number. The three pieces of information Google uses to verify that a business is real, that it’s at a specific location, and that mentions of it across the web all refer to the same entity.

The trap is in the detail. To you, “47 High Street, Twickenham” and “47 High St, Twickenham” are the same address. To Google’s verification systems, they aren’t necessarily. Same with phone numbers in different formats. Same with business name suffixes (Ltd, Limited, & Co, the Company).

The variations Google has been documented to treat differently include:

• Business name. “Smith Plumbing” vs “Smith Plumbing Ltd” vs “Smith Plumbing Limited” vs “Smith Plumbing & Sons.” Pick one and use it everywhere.
• Street type. “Street” vs “St” vs “St.” (with a full stop). “Road” vs “Rd.” “Avenue” vs “Ave.”
• Suite, unit, and floor numbers. “Unit 2” vs “U2” vs “Suite 2” vs “Floor 2.” Half of small businesses leave this off some listings entirely.
• Postcode formatting. “TW1 1AB” vs “TW11AB” vs “TW1-1AB.”
• Phone numbers. “+44 20 1234 5678” vs “020 1234 5678” vs “(020) 1234 5678” vs “01923 etc.” vs a tracking number that changes per channel.

Google has improved at fuzzy-matching these variations over the years. It’s still imperfect. And in competitive local markets, the firms with clean citations consistently outrank the ones with messy ones, all else being equal.

Why It Kills Local Rankings

Citations (mentions of your business on other websites with NAP details) are one of the older local SEO ranking signals. Whitespark’s 2024 Local Search Ranking Factors survey put citation signals at around 7% of organic ranking weight and 11% of map pack weight. That’s not a huge number on its own. But citations interact with everything else.

When your NAP is inconsistent, three things happen.

Google’s confidence in your data drops. It becomes less sure that the listings on Yell, Bing, and your website are the same business. That makes it less willing to show you in the local pack for a search where it isn’t certain.

Duplicate listings get created. Two different addresses or phone numbers can spawn two separate Google Business Profiles, splitting your reviews and authority across both. We’ve seen businesses lose 60% of their visibility because half their reviews were attached to a phantom duplicate listing they didn’t even know existed.

Trust signals weaken. A user who sees your phone number as 020 1234 5678 on Yell and 020 1234 5679 on your website is going to wonder which one to call. A small percentage will simply go to a competitor.

The compound effect is real. We’ve audited dozens of businesses where fixing NAP inconsistencies alone moved them up two to four positions in the local pack within a month, with no other changes.

The 7-Step Audit Checklist

Run this end to end. It takes about 30 to 45 minutes if you do it properly.

Step 1: Lock in Your Master NAP

Before you check anything, decide on your one canonical version. Write it down. This is the format you will use everywhere from now on, full stop.

A clean master NAP looks like this:

• Name: Smith Plumbing Ltd
• Address: 47 High Street, Twickenham, London, TW1 1AB
• Phone: 020 1234 5678
• Website: https://www.smithplumbing.co.uk
• Email: hello@smithplumbing.co.uk

Add your business hours, year established, and a 50-word business description while you’re at it. You’ll need them for half the directories you update.

Step 2: Audit Google Business Profile

This is the most important listing on the planet for local SEO. Open it. Check every field. Specifically:

• Business name matches the master, character for character.
• Address matches, including casing and punctuation.
• Phone matches.
• Website link works and uses HTTPS.
• Categories are correct.
• Hours are right (and bank-holiday hours are set).
• Service area is accurate.
• Photos are recent.

Check whether any duplicate GBP listings exist. Search Google Maps for your business name plus your town. If two pins appear for what should be the same business, you’ve got a duplicate. Go through GBP support to merge or remove the duplicate.

Step 3: Audit Bing Places

Bing has roughly 6% of UK search market share. That’s small but not zero. More importantly, Bing data feeds into Apple Maps, Siri, Alexa, and a handful of other services. Don’t skip it.

Sign in to Bing Places, claim your listing if you haven’t, and update it to match the master.

Step 4: Audit Apple Maps

Apple Maps is the default on every iPhone in the UK. About a third of mobile searches happen there. Use Apple Business Connect (the free tool from Apple) to claim and update your listing.

Step 5: Audit the UK’s Top General Directories

In rough order of importance for UK businesses:

1. Yell.com. Still the biggest UK general directory. Decent domain authority, frequently feeds other listings.
2. Yelp. Less used than in the US but still picked up by data aggregators.
3. Cylex. UK business directory, regularly cited by Google.
4. Foursquare/Factual. Underpins a lot of mapping and discovery apps.
5. Thomson Local. Old but still indexed.
6. Scoot. UK-focused, owned by Yell.
7. Hotfrog. General directory.
8. FreeIndex. UK directory, decent domain authority.
9. The Sun Local Business Directory.
10. Trustpilot. Mostly review-driven but holds NAP data.

Sign into each and update your details. If you don’t have a login, most of them have a “claim this listing” button. Some require email verification or a postcard.

Step 6: Audit Industry-Specific Directories

These move the needle harder than general directories because they’re niche-relevant. Examples by sector:

• Trades and construction. CheckaTrade, MyBuilder, Rated People, TrustATrader, Houzz, FMB findabuilder, NHBC find a builder, TrustMark, Gas Safe Register, NICEIC, NAPIT, ConstructionLine, CHAS.
• Health and clinics. NHS Choices, Doctify, Top Doctors, BUPA, AXA find-a-clinic, professional registers (GMC, NMC, GDC, HCPC, BACP).
• Legal. Law Society Find a Solicitor, Solicitors from Hell, Trustpilot Legal, Chambers and Partners, Legal 500.
• Accounting and finance. ICAEW, ACCA, AAT directory, Unbiased, VouchedFor.
• Retail and hospitality. TripAdvisor, OpenTable, ResDiary, Square, Toast.
• Property and lettings. Zoopla, Rightmove (paid), OnTheMarket, Boomin.

Pick the five to ten that matter most for your sector, and audit them.

Step 7: Audit Local Directories and Chamber Listings

Local directories carry less raw authority but they signal local relevance, which matters for the map pack. Look at:

• Local council business directories.
• Local chamber of commerce listings.
• Town-specific directories (e.g. surreyguide.co.uk, twickenhamonline.co.uk).
• Local newspaper business listings.
• Local network groups (BNI, FSB chapters, etc.).

Get yourself listed on three to five strong local directories. Don’t go nuts. Five high-quality local citations beat fifty spammy ones.

Tools to Find Inconsistencies (Free and Paid)

You can audit by hand, but it’s faster with tools.

Free

Google search. Search “[business name] [phone number]” and “[business name] [address]” and skim the results. Anywhere your details appear differently, you’ve found an inconsistency.

Moz Local Free Check. Type in your business and it scans 15 or so major directories for free. Doesn’t fix anything, but it tells you where the gaps are.

BrightLocal Free Citation Tracker. Limited free tier. Useful for a one-off audit.

Paid

BrightLocal (£29/month). The standard for UK local SEO agencies. Tracks citations, NAP consistency, GBP rankings, and reviews. Worth every penny if you’re managing this seriously.

Moz Local (£10/month). Distributes your data to a network of directories. Cheaper than BrightLocal but less comprehensive on auditing.

Whitespark Local Citation Finder ($25/month). US-focused but with UK data. Strong for finding citation opportunities you don’t already have.

Yext (£500+/year). Enterprise-tier. Pushes data to a wide network. Overkill for most small businesses but useful for multi-location chains.

For most UK small businesses, BrightLocal alone gets the job done.

Citation Building Services Worth Using

If your time is better spent on revenue work than typing the same address into 40 forms, these services are worth the spend.

BrightLocal Citation Builder. £125 one-off for 50 UK citations, manually built. We’ve used them. Quality is decent.

Whitespark Citation Builder. $150 to $300 for a UK package. Strong reputation in the industry.

Loganix. £200+ for UK citations. Higher quality, more expensive.

Local agency. A specialist UK local SEO agency will charge £400 to £1,200 to audit, clean up, and rebuild citations properly. For most service businesses earning over £200k/year, this is the better route.

What to avoid: anyone selling “1,000 citations for £49 on Fiverr.” These are spam directories that Google has ignored or actively penalised for years. They will not help your rankings and may hurt them.

Maintaining Consistency Long Term

NAP consistency isn’t a one-time fix. New directories appear. Old listings revert. Phone numbers change. Suite numbers get added.

Set a quarterly calendar reminder to:

1. Re-run a citation audit.
2. Check Google Business Profile for unauthorised changes (yes, it happens, especially around competitor reports).
3. Review duplicates that may have been auto-created.
4. Update any details that have changed.

Anywhere you change your address or phone number, treat it as a project. Update GBP first, then your website, then your master directories, then everything else. It will take a couple of weeks to propagate.

If you ever rebrand or change the trading name of your business, plan for a 60 to 90-day citation cleanup as part of the launch. Skipping this is one of the most common reasons rebrands torch local rankings.

What to Do Next

NAP consistency is the unsexy bit of local SEO that almost nobody runs properly. The firms that do, especially in competitive markets like Surrey, Greater London, and the home counties, get a measurable advantage that compounds over time.

If you want a hand auditing your current state, we offer a free local citation audit as part of our SEO service. We’ll review your NAP across 50+ UK directories, flag every inconsistency and duplicate, and give you a clear remediation list.

For local businesses in our patch, see our Twickenham SEO page and our wider Surrey SEO page for more on how we work with local firms.