diff --git a/domains/ffhb_11s.conf b/domains/ffhb_11s.conf
index 521fbe6..aaa860b 100644
--- a/domains/ffhb_11s.conf
+++ b/domains/ffhb_11s.conf
@@ -99,7 +99,7 @@
 		switch_after_offline_mins = 1440, -- 1 day
 		switch_time = 1653210000, -- Sun May 22 11:00:00 2022 CEST (this is just for testing)
 		connection_check_targets = {
-			'2001:4860:4860::8888',
+			'2001:4860:4860::8888', -- Google DNS
 			'2a06:8782:ff00::f7', -- vpn01
 			'2a06:8782:ff02::e4', -- vpn02
 			'2a06:8782:ff02::e8', -- vpn07