Google and every major LLM evaluate authorship by resolving bylines to entities. A byline with no Person schema, no sameAs links, and no external profile is invisible to the E-E-A-T signal chain. This tool crawls author pages + byline metadata and renders the author-entity graph as an interactive SVG — with gaps highlighted.
Read the story behind this tool: Why a byline without an entity behind it is worth zero to Google →