diff --git a/ptrb-domains.txt b/ptrb-domains.txt
index 24c1f51..da2d3b4 100644
--- a/ptrb-domains.txt
+++ b/ptrb-domains.txt
@@ -21,3 +21,4 @@ netsystemsresearch.com
 censys.io
 3coresec.net
 censys-scanner.com
+msn.com