Separate from your site
Records live at _for-sale.example.com, leaving web, mail, and existing DNS untouched.
RFC 10023 · Informational RFCSale intent,
Sale intent,
published in DNS.
A small, machine-readable signal for domains that may be for sale or lease. Your website stays exactly where it is.
01 — OVERVIEW
A public sale path for an otherwise invisible market.
A registered domain can be actively used and still be available. RFC 10023 gives its owner a standard place in DNS to say so, for software—not browsers—to discover.
Readable by tools
Buy-side search, brokers, and acquisition software can look for a price or a contact path automatically.
Not a transaction layer
DNS expresses intent. It does not prove identity, ownership, pricing, or a safe deal.
02 — THE FORMAT
One signal. One record.
Every record starts with v=FORSALE1; and has only one additional tag. Publish separate records for a price, a contact URL, and a message.
01Version
v=FORSALE1; is required and case-sensitive.
02Supported tags
fval asking price · furi contact URL · ftxt plain note · fcod private code.
03Short-lived & current
Keep a TTL of 3600 seconds or less. Remove the record when the offer ends.
03 — CREATE
Generate valid DNS TXT records.
No account. No marketplace listing. Just the records your DNS provider needs.
04 — LOOKUP
Inspect a public sale signal.
Query _for-sale.your-domain through public DNS-over-HTTPS and parse records that match RFC 10023.
Security noteDo not automatically open a
furi contact link or trust its price. Verify the counterparty and domain control independently. DNSSEC can protect DNS data in transit, but it cannot validate a transaction.05 — FAQ
Answers, before you publish.
Does this create a “for sale” landing page?
No. Browsers do not visit this record. It is a separate DNS name and does not change the website visitors see.
Does no record mean a domain is not for sale?
No. It only means that this public, machine-readable signal was not found.
Is this a mandatory standard?
No. RFC 10023 is Informational. Its usefulness grows as registrars, brokers, and domain-discovery tools adopt it.
Should I use an email address as my contact?
A contact-form URL is usually safer. DNS is public and an exposed email address can attract scraping and spam.