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nap-consistency

Audit a business website for inconsistent names, addresses, and phone numbers. Compare visible page content with structured data, then standardize spelling and formatting to support accurate business information in local search.

OriginalShow the original description

Use when auditing a local business website for local SEO. Applies to any business that has a physical address and wants to appear in local search results or Google Maps.

AI rating100/ 100See how to install

Good for

  • Check business details across a local website
  • Standardize address and phone number formats
  • Compare structured data with visible contact details

Overview

What it does

nap-consistency compares the names, addresses, and phone numbers published on a business website and identifies differences. These three fields are collectively called NAP. It checks spelling, address abbreviations, phone number separators, and how suite or unit numbers are written. The review covers both visible page text and LocalBusiness structured data, which communicates business information to search engines.

When it helps

Use it to review local SEO for a business with a physical location, or when contact details appear in different formats across pages. It helps bring information scattered across footers, contact pages, and about pages into one consistent format.

Example requests

  • “Extract the business name, address, and phone number throughout the site, and report any formatting differences.”
  • “Standardize the address and phone number, and make the LocalBusiness JSON-LD match the visible text.”

Notes

This skill is intended for websites belonging to businesses with physical addresses. The material also explains consistency with Google Business Profile and external directories, but its concrete checking and correction steps focus mainly on information within the website.

This overview was written by AI (OpenAI Codex) from the public SKILL.md. Check the original below for the exact behavior.

Objective evaluation

AI rated this skill on four points using only the contents of its SKILL.md. Stars and popularity are not taken into account.

Clear instructionsIs it clear when to use it and what it does?
AGoodIt explicitly targets businesses with physical addresses and compares their names, addresses, and phone numbers.
Concrete stepsAre steps, inputs, outputs, and examples spelled out?
AGoodSteps cover extracting all occurrences, comparing formats, checking JSON-LD, and standardizing the information.
SafetyAre sending data, deleting files, and running commands disclosed?
AGoodUpdates are scoped to website contact details and structured data; no external write operations are instructed.
Easy setupDoes it need few tools or API keys, and are they documented?
AGoodThe review uses site text and JSON-LD, with no dedicated tools or API keys required.

The total counts each point as A = 25, B = 15, C = 5. Rated by AI (OpenAI Codex) as of Oct 23, 2026. Treat it as a guide and read the original before installing.

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Files included (2)

  • SKILL.md2.4 KB
  • references/rule.md4.1 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

Keep NAP details consistent

Inconsistent NAP information across a website signals to search engines that the business details are unreliable, which can suppress local rankings and prevent the Knowledge Panel from showing accurate information.

Quick Reference

  • NAP = Name, Address, Phone — must be identical everywhere they appear on the site
  • Inconsistencies confuse search engines and hurt local ranking
  • Use identical formatting: same abbreviations, same phone format, same suite notation
  • Reinforce NAP consistency in LocalBusiness schema markup

Check

Search the site for all instances of the business name, street address, and phone number. Compare each occurrence for exact consistency in spelling, formatting, and abbreviation (e.g., 'St.' vs 'Street', '555-1234' vs '(555) 123-4567'). Also check JSON-LD LocalBusiness schema against the visible text.

Fix

Standardise all NAP occurrences to a single canonical-url format. Choose one format for each field: full street name vs abbreviation, phone number formatting, suite/unit notation. Update all pages, footer, contact page, about page, and structured data to match exactly.

Explain

NAP consistency is a local SEO ranking factor. Google cross-references a business's Name, Address, and Phone across the site and external citations (Google Business Profile, directories). When these differ even slightly, Google's confidence in the data decreases, which can lower local rankings and show incorrect information in search results.

Code Review

Extract all instances of the business name, street address, and phone number from the site. Compare each instance for exact formatting consistency: same abbreviations (St. vs Street), same phone format, same suite notation. Extract the address from any LocalBusiness JSON-LD and compare against visible HTML text. Report any differences.


For full implementation details, code examples, and framework-specific guidance, see references/rule.md.

Rule page: https://frontendchecklist.io/rules/seo/nap-consistency

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