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I read the public DNS records of 44 AI companies: Cursor's verification token is on 27 of them, more than OpenAI's or Anthropic's

Every company leaves a trail of small notes in its public DNS. When an admin connects a domain to a SaaS tool (to turn on SSO, claim a workspace or send email), the tool usually asks for a TXT record like slack-domain-verification=... . The records stay there, and anyone can read them. On 3 Novembe…

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  1. 2026-11-03 07:46 · DEV Community — AI
    I read the public DNS records of 44 AI companies: Cursor's verification token is on 27 of them, more than OpenAI's or Anthropic's

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