Machine-readable trust, explained
Browsers, mail servers, security filters and now some AI agents judge a domain partly on what they can verify without a human: whether its DNS answers are signed with DNSSEC, whether the site serves a valid certificate, whether SPF, DKIM and DMARC records protect its email, whether registration data is available through RDAP, and whether the name appears on spam or malware blocklists. A newer example is the _for-sale DNS record defined in RFC 10023 in July 2026, which signals in the DNS that a name is available to buy, with a link and a price that software can parse.
For a domain investor, the point is mostly defensive. None of these signals makes a name valuable on its own, but a bad record can make it harder to use or sell: a name with a spam or malware past may stay filtered by mail and security systems for some time after the abuse stops. Check blocklists and archived history before buying an expired name, and keep your own names on clean DNS and hosting. If AI agents come to handle more of the search for buyers, names that software can verify cleanly will be easier to deal with.
Example. A buyer's security review that flags a domain because it once sent spam, even though its current content is clean, is machine-readable trust working against the seller.
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Education, not financial, legal or tax advice. Domain investing is speculative and most domain names never sell. Read the disclaimer.
