Entity graph checker
AI assistants and Google build a picture of who you are from your structured data. Check whether the page names its Organization and author as real entities, links them to each other, and ties them to profiles on LinkedIn, Wikipedia or Wikidata.
Or ask your AI assistant
This check is the check_entity_graph tool in the free OnPage.dev MCP server. Connect it to Claude, ChatGPT or Cursor once, then ask in your own words.
Check how the structured data on example.com describes the company and its authors, and write the missing JSON-LD.
check_entity_graph5 entities, author is plain textcheck_entity_graphSuggested JSON-LD with 3 TODOs
What gets checked
- Which entities the page describes, such as Organization, Person, Article and Product, and how they link to each other with
@id. - Whether author and publisher are real entities, not plain text, and whether the author has a profile page.
- Whether
sameAslinks are full addresses of profiles on other sites, and whether they still load. - Whether the Organization matches the one on your home page.
A schema validator tells you if the markup is correct. This check tells you if it says something useful about who you are. The suggested JSON-LD leaves profile links and names as TODO: only you know them, so never fill them with guesses.
Questions
What is sameAs for?
sameAs links an entity to its profiles elsewhere, such as LinkedIn, Wikipedia, Wikidata or social accounts. That tells search engines and AI systems which real company or person you mean.
Why can some profile links not be checked?
Sites like LinkedIn and X block automated requests. Those links are reported as not checked, not as broken. Only links that return 404 or 410 count as gone.
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