OpenAI, Google, Microsoft, and Anthropic say they will adopt a new standard that publishers can use to opt out of being scraped by AI, as reported earlier by Search Engine Roundtable. With this control, publishers can apply their AI training preferences across multiple AI companies, instead of setting them individually.

The shared “policy token” signal is proposed by Kevin Kelley, a technical lead for standards at Anthropic, as part of the Internet Engineering Task Force (IETF). It will live within a website’s robots.txt file, which has long signaled which web crawlers can and can’t scrape a site – whether for search indexing, archiving, or …

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