diff --git a/app/models/namespace.rb b/app/models/namespace.rb
index 2cefcb8fc7da9057267a6e03379e06887b093a15..162cd600734c44fd54d6b6c503a45bed4350594b 100644
--- a/app/models/namespace.rb
+++ b/app/models/namespace.rb
@@ -801,11 +801,9 @@ def allow_runner_registration_token?
   end
 
   def pages_access_control_trie(namespaces = self_and_descendants)
-    strong_memoize_with(:pages_access_control_trie, namespaces) do
-      traversal_ids = namespaces.joins(:namespace_settings).where(namespace_settings: { force_pages_access_control: true }).map(&:traversal_ids)
+    traversal_ids = namespaces.joins(:namespace_settings).where(namespace_settings: { force_pages_access_control: true }).map(&:traversal_ids)
 
-      Namespaces::Traversal::TrieNode.build(traversal_ids)
-    end
+    Namespaces::Traversal::TrieNode.build(traversal_ids)
   end
 
   def pages_access_control_forced_by_self_or_ancestor?
diff --git a/app/models/pages/virtual_domain.rb b/app/models/pages/virtual_domain.rb
index b6f259dba7932db5d8a7e1e4c5443bd9e50fd09b..f9d751e71d92d2b58141328edb451457ad2b82b9 100644
--- a/app/models/pages/virtual_domain.rb
+++ b/app/models/pages/virtual_domain.rb
@@ -2,6 +2,8 @@
 
 module Pages
   class VirtualDomain
+    include Gitlab::Utils::StrongMemoize
+
     def initialize(projects:, trim_prefix: nil, domain: nil, namespace: nil)
       @projects = projects
       @trim_prefix = trim_prefix
@@ -34,8 +36,13 @@ def access_control_for(project)
       return true if ::Gitlab::Pages.access_control_is_forced?
       return true if project.project_feature&.private_pages?
 
-      @namespace&.pages_access_control_trie&.covered?(project.namespace.traversal_ids)
+      pages_access_control_trie&.covered?(project.namespace.traversal_ids)
+    end
+
+    def pages_access_control_trie
+      @namespace&.pages_access_control_trie
     end
+    strong_memoize_attr :pages_access_control_trie
 
     def lookup_paths_for(project, root_namespace_id)
       deployments_for(project).map do |deployment|