What Is the sameAs Property?
sameAs is a property in the Schema.org vocabulary that creates an explicit link between an entity described on your website and that same entity's representation on other authoritative platforms across the web.
When you add sameAs to your Organization or LocalBusiness schema, you're telling AI systems and search engines: "The business described on this website is the same entity as the businesses listed at these other URLs."
This explicit relationship is a fundamental building block of entity recognition for AI platforms.
Why sameAs Is Critical for AI Visibility
Without sameAs, AI systems must infer that your Google Business Profile, Yelp listing, LinkedIn page, and website all represent the same business — based on matching names, addresses, and phone numbers. This inference process is imperfect and contributes to AI hallucinations and entity disambiguation errors.
With sameAs, the relationship is explicit. AI crawlers and knowledge graph systems read the sameAs array and can confidently treat all listed profiles as representing one entity — aggregating information from all sources to build a more complete, accurate picture of your business.
The practical result: More consistent, more accurate, and more frequent AI recommendations.
How to Implement sameAs
Add a sameAs array to your Organization or LocalBusiness JSON-LD block:
{
"@context": "https://schema.org",
"@type": "LocalBusiness",
"@id": "https://yourbusiness.com/#organization",
"name": "Austin Family Dental",
"url": "https://yourbusiness.com",
"sameAs": [
"https://www.google.com/maps/place/Austin-Family-Dental/@30.267,-97.743",
"https://www.yelp.com/biz/austin-family-dental",
"https://www.facebook.com/austinfamilydental",
"https://www.linkedin.com/company/austin-family-dental",
"https://www.instagram.com/austinfamilydental/",
"https://twitter.com/austinfamilydental",
"https://www.healthgrades.com/dentists/...",
"https://www.wikidata.org/wiki/Q123456"
]
}
What URLs to Include in sameAs
Include every authoritative profile of your business that:
- Is publicly accessible (no login required)
- Represents your business as a distinct entity (not just a mention or backlink)
- Is on a platform with recognized authority
Always include (if available):
- Google Maps / Google Business Profile URL
- Yelp business page URL
- Facebook Business Page URL
- LinkedIn Company Page URL
- Twitter/X profile URL
- Apple Maps page URL (if available)
Include if relevant:
- Instagram profile URL
- YouTube channel URL
- Industry-specific directories (Healthgrades, Avvo, G2, Capterra, TripAdvisor, etc.)
- Wikidata entity URL
- Wikipedia article URL (if it exists)
The @id Property: Your Entity's Unique Identifier
Paired with sameAs, the @id property creates a unique identifier (URI) for your entity that AI and search systems can use as a canonical reference point. Use your website URL with a fragment identifier:
"@id": "https://yourwebsite.com/#organization"
This @id can be referenced in other schema blocks (e.g., linking a product's brand property to your organization entity), creating a coherent entity graph across your entire website.
Q: Does the sameAs URL need to be the direct profile URL or can it be any URL from that platform?
A: Use the direct, canonical profile URL for your business on each platform. For Google Maps, use the specific URL for your business listing (not just maps.google.com). For Yelp, use the specific /biz/ URL for your listing. The more specific and directly pointing to your entity, the better.
Q: How many sameAs URLs is too many? A: There's no practical upper limit. Include every authoritative profile of your business. However, avoid including URLs that are just mentions or backlinks — only include URLs where the page is primarily about your business entity.