You can now advertise that a domain is for sale with a single DNS record. RFC 10023, published in July 2026 by Marco Davids of SIDN Labs and registered with IANA, reserves _for-sale as a leaf node name and defines the TXT syntax that goes with it. Around 250,000 records are already live, and it is the first IETF-registered underscored record to carry commercial intent rather than technical policy.
Read the full story: RFC 10023 puts a for-sale sign in your domain’s DNS →
Transcript
You can now tell the whole internet that a domain is for sale using one DNS record. RFC 10023 reserves the name underscore for-sale, and defines what goes in the TXT record underneath it. It exists because WHOIS privacy killed the old path. If a domain looked parked, you emailed the contact address. Then that address disappeared behind a privacy proxy, and a market full of willing sellers became unreachable. The record carries a version tag, then one optional field: an asking price, a contact link, or a plain note. One field per record. Your site keeps serving the whole time, which a parking page could never offer. Around two hundred and fifty thousand are already live. Here is the part that matters. Every underscore record before this one described technical policy. This is the first one that says someone wants to make a deal.