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The Replies by Rcode plot shows the breakdown of RCODE values in DNS responses:

  • NOERROR - No error condition.
  • SERVFAIL - The name server was unable to process the query due to a problem with the name server.
  • NXDOMAIN - The domain name referenced in the query does not exist.
  • REFUSED - The server refuses to perform the specified operation for policy reasons.
  • NXRRSET - Some RRset that ought to exist, does not exist (used in dynamic updates).
  • Other - All other response codes, including: FORMERR, NOTIMP, YXDOMAIN, YXRRSET, NOTAUTH, NOTZONE.

Click on the legend to view the queries for a specific RCODE.

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