E-E-A-T / Schema Entity Validator
Paste a URL. We extract JSON-LD, check entity @id consistency, sameAs, author/publisher links, breadcrumbs, and duplicate types — then give a score and fix list.
What “entity consistency” means
HEG zero-entropy: one primary entity per URL, stable @id values (#organization, person anchors), explicit parents/breadcrumbs, and author → Person → Organization links. This tool flags drift that breaks knowledge-graph joins.
Validate a page
FAQ
What does the Schema Entity Validator check?
It fetches the page, parses JSON-LD, and scores Organization/Person @id consistency, sameAs, author/publisher linkage, about/mentions, breadcrumb parent, and duplicate types.
What is a good score?
90+ (A) means stable @ids and linked entities. Fix list items are prioritized by severity.
Does it execute JavaScript?
No. Only JSON-LD present in the initial HTML response is evaluated (same constraint as many crawlers).