diff --git a/public_suffix_list.dat b/public_suffix_list.dat
index 274f2ce44..622019f0e 100644
--- a/public_suffix_list.dat
+++ b/public_suffix_list.dat
@@ -12576,6 +12576,10 @@ outsystemscloud.com
 ownprovider.com
 own.pm
 
+// OwO : https://whats-th.is/
+// Submitted by Dean Sheather <dean@deansheather.com>
+*.owo.codes
+
 // OX : http://www.ox.rs
 // Submitted by Adam Grand <webmaster@mail.ox.rs>
 ox.rs