Name,Description,Reference
qnamemin,The presence of the key name indicates that QNAME minimisation is enabled.,[RFC9606]
exterr,Lists the set of enabled extended DNS errors. It must be an INFO-CODE decimal value in the [Extended DNS Error Codes] registry.,[RFC9606]
infourl,Provides a URL that points to unstructured resolver information that is used for troubleshooting.,[RFC9606]