A UTC Timestamp Option For EDNS

Document Type Expired Internet-Draft (individual)
Authors Lars-Johan Liman  , Ragnar Sundblad 
Last updated 2019-05-24 (latest revision 2018-11-20)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


UTCSTAMP is an EDNS extension to allow a client to request from a server that it includes a timestamp in the response message, and for the server to provide it, if requested and deemed appropriate. This is primarily intended as a debugging tool.


Lars-Johan Liman (liman@netnod.se)
Ragnar Sundblad (ragge@kth.se)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)