{"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":["HTML","TEXT","PDF","XML"],"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\r\n0) over the Constrained Application Protocol (CoAP). These CoAP\r\nmessages can be protected by (D)TLS-Secured CoAP or Object Security\r\nfor Constrained RESTful Environments (OSCORE) to provide encrypted\r\nDNS message exchange for constrained devices in the Internet of\r\nThings (IoT).","pub_date":"March 2026","keywords":["CoRE","CoAP","DNS"],"obsoletes":[],"obsoleted_by":[],"updates":[],"updated_by":[],"see_also":[],"doi":"10.17487\/RFC9953","errata_url":null}