- Free, no sign-up
- Google, Wikidata and your site in one check
- Finds your KGMID
Free Knowledge Graph Checker
Type your brand or name and see whether Google's Knowledge Graph holds an entity for it: the ID (KGMID), the types, the description and the official site Google links to. Then the same check on Wikidata and Wikipedia, and on your own site's Organization markup, with a short list of what to fix. Honest about what it can't do: no tool can make Google show a knowledge panel. Free, no sign-up.
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How to use it
Four steps, one check
Find your entity
Type your brand, your name or a KGMID, and your website. Google's matches come back as cards; the one that links your site is picked, and you can pick another.
Wikidata and Wikipedia
The tool looks for the Wikidata item that carries the same Knowledge Graph ID or your website, with its Wikipedia article and the profiles it lists.
Your site's markup
It reads the Organization or Person markup on your page, opens every sameAs link and measures the logo.
What to fix
A short list, worst first, with a button that opens our Schema Markup Generator already filled in.
Built forBrandsFounders and authorsAgenciesEntity SEO
Quick answer
Does Google know your brand?
Search your brand in Google's Knowledge Graph, through its Knowledge Graph Search API or this tool. If an entity comes back with your official site, Google treats you as a known entity, with an ID called a KGMID (it starts /g/ or /m/). A knowledge panel is built from that entity automatically: you can claim an existing panel, but there is no way to request one.
The words
Entity, KGMID, knowledge panel
| Term | What it means |
|---|---|
| Entity | A thing, not a string: your company, your founder, a product line, a place. Google keeps them in its Knowledge Graph with the facts that connect them. |
| KGMID | The entity's ID. /m/ IDs came from Freebase before 2015; /g/ IDs were added by Google since. The Search Profile link opens Google with that entity. |
| Knowledge panel | The box some searches show. Google generates it from the entity and sources across the web; the official representative can claim it and suggest changes. |
| Entity home | The official site Google ties the entity to. It should be your site, the same version everywhere. |
| sameAs | The links in your Organization or Person markup to your official profiles: Business Profile, LinkedIn, Instagram, YouTube, Wikidata, Wikipedia. |
Reading the result
What each step tells you
| You see | It means |
|---|---|
| Several matches | Names are shared. The one that links your site is yours; if none does, Google may not yet tie an entity to your site. |
| Match score | How strongly an entity matches this search, compared with the other results. It is not a grade, and Google's newer API no longer returns it. |
| No entity | Normal for new and small businesses. Nobody can request one; consistent facts, markup and coverage on other sites are the evidence Google reads. |
| No Wikidata item | Also normal. Wikidata has a notability rule, and Wikipedia asks anyone paid to edit to disclose it. |
| Different home pages | www against non-www, or an old domain: pick one, redirect the other, and use it everywhere. |
| Two unjoined nodes | Organization and LocalBusiness (or OnlineStore) describing one business without one @id: join them, so the markup says it is one entity. |
What no tool can do
Honest limits
Google's help pages say knowledge panels are generated automatically from sources across the web; there is a way to claim one that exists, and none to ask for a new one. A business that serves customers at a location needs a Business Profile, not a panel. Markup alone does not make an entity: the facts have to agree on your site, your profiles, directories and the sites that write about you. Google also prunes its Knowledge Graph (heavily in June 2025), so an entity can come and go. Treat this as a check, not a promise.
FAQ
Questions people ask
Is my brand in Google's Knowledge Graph?
Type it above with your website. If a match links your site, yes.
How do I find my KGMID?
It is the ID on your entity's card, starting /g/ or /m/. Copy it with the button, or open the Search Profile link.
What does the match score mean?
How strongly an entity matches the words you typed, relative to the others. Compare it within one search only.
Why is there no knowledge panel when there is an entity?
Google decides when to show one. An entity is the first step, not a guarantee.
How do I get a knowledge panel?
You can't request one. Make your facts agree everywhere, mark them up, earn coverage, and claim the panel when it appears.
Do I need a Wikipedia page or a Wikidata item?
No. Many businesses with panels have neither. If you meet the notability rules, an item helps tie the facts together.
Does schema markup create an entity?
No. It is one witness among many; it helps Google tie the entity to your site.
Person or Organization?
A business uses Organization (or a type of it, such as LocalBusiness); an author or founder uses Person on their profile page.
Why did my entity disappear?
Google removes entities when it cleans the graph, as it did in June 2025. Check that your facts still agree, and look again later.
Keep going
More free tools and guides
- Structured data at scale and entity SEO (Advanced, chapter 7): the entity graph and Organization markup.
- Entities and brand mentions (GEO, chapter 5): being known to AI answers.
- Schema Markup Generator: Organization with sameAs, filled in from this check.
- Schema Markup Validator: test the markup you add.
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