diff --git a/public_suffix_list.dat b/public_suffix_list.dat
index a09909a1f..3a73a2fb3 100644
--- a/public_suffix_list.dat
+++ b/public_suffix_list.dat
@@ -12535,6 +12535,10 @@ 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