{
  "draft": "draft-ietf-core-dns-over-coap-20",
  "doc_id": "RFC9953",
  "title": "DNS over CoAP (DoC)",
  "authors": [
    "M. S. Lenders",
    "C. Ams\u00fcss",
    "C. G\u00fcndo\u011fan",
    "T. C. Schmidt",
    "M. W\u00e4hlisch"
  ],
  "format": [
    "XML",
    "TEXT",
    "HTML",
    "PDF"
  ],
  "page_count": "22",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "Constrained RESTful Environments",
  "abstract": "This document defines a protocol for exchanging DNS queries (OPCODE 0) over the Constrained Application Protocol (CoAP).  These CoAP messages can be protected by (D)TLS-Secured CoAP or Object Security for Constrained RESTful Environments (OSCORE) to provide encrypted DNS message exchange for constrained devices in the Internet of Things (IoT).",
  "pub_date": "March 2026",
  "keywords": [
    "CoRE",
    "CoAP",
    "DNS"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC9953",
  "errata_url": "https://www.rfc-editor.org/errata/rfc9953"
}