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JSON-LD

W3C format for linked data in JSON

JSON-based format for linked data and the way most sites embed Schema.org markup in a script tag. The site hosts the specification, a playground for testing documents and links to tools.

json-ldstandardlinked-dataw3c

vs llms.txt vs Dark Visitors vs llms-txt-hub JSON-LD alternatives

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llms.txt

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Proposed standard for LLM-friendly site summaries

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Dark Visitors

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Directory and robots.txt rules for AI crawlers

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llms-txt-hub

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Directory of sites that publish llms.txt

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Mintlify

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Docs platform that generates llms.txt files

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Rich Results Test

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Google's tool for testing structured data

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Schema App

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Platform for managing schema markup at scale

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