An HTTPS AliasMode record sits beside other HTTPS records.

SVCB_ALIAS_CONFLICT · Severity: Warning

• WarningSVCB_ALIAS_CONFLICT

  An HTTPS AliasMode record sits beside other HTTPS records.

  A record with priority 0 (AliasMode) sends clients to another name. RFC 9460 section 2.4.2 says a name should have only that one record; when others are present, clients use the alias and ignore them.

  Recommendation: Keep either the AliasMode record or the ServiceMode records.

Reported by

• HTTPS record check

Available through the API

• HTTPS record check API

Related findings

• Warning SVCB_ALIAS_WITH_PARAMS An HTTPS AliasMode record has parameters, which clients ignore.
• Error SVCB_ALPN_MISSING An HTTPS record has no-default-alpn but no alpn parameter.
• Info SVCB_ECH The HTTPS record publishes an Encrypted Client Hello configuration.
• Error SVCB_INVALID An HTTPS record cannot be read.
• Error SVCB_MANDATORY_MISSING An HTTPS record lists a mandatory parameter that it does not have.
• Info SVCB_NOT_FOUND The name publishes no HTTPS record.

All findings