Check for explicit delegation

Only assess NS records and corresponding address records if not
explicit delegation

1 files changed, 3 insertions, 8 deletions

diff --git a/dnsviz/analysis/offline.py b/dnsviz/analysis/offline.py
index 571e3c1..7a7ab4b 100644
--- a/dnsviz/analysis/offline.py
+++ b/dnsviz/analysis/offline.py
@@ -1443,18 +1443,13 @@ class OfflineDomainNameAnalysis(OnlineDomainNameAnalysis):
         if self.analysis_type != ANALYSIS_TYPE_AUTHORITATIVE:
             return
 
+        if self.explicit_delegation:
+            return
+
         all_names = self.get_ns_names()
         names_from_child = self.get_ns_names_in_child()
         names_from_parent = self.get_ns_names_in_parent()
 
-        # With explicit delegations we won't have queried for authoritative NS
-        # records, but we also don't need to check delegation consistency in
-        # that case.
-        if (self.name, dns.rdatatype.NS) in self.queries:
-            auth_ns_response = self.queries[(self.name, dns.rdatatype.NS)].is_valid_complete_authoritative_response_any()
-        else:
-            auth_ns_response = False
-
         glue_mapping = self.get_glue_ip_mapping()
         auth_mapping = self.get_auth_ns_ip_mapping()