diff --git a/install.sh b/install.sh
index 095d308..44d9e7c 100644
--- a/install.sh
+++ b/install.sh
@@ -350,6 +350,7 @@ confirmdlg() {
 packages=()
 aptGetWasUpdated=0
 freshInstall=0
+cachedMenuDomain=''
 
 MIKRUS_APIKEY=''
 MIKRUS_HOST=''
@@ -1087,10 +1088,18 @@ get_watchdog_status_code_live() {
 	local COMBINED_STATUS="$NS_STATUS $DB_STATUS"
 
 	if [ "$COMBINED_STATUS" = "running running" ]; then
-		local domain=$(get_td_domain)
+	
+		status="detection_failed"
+
+    local domain=$cachedMenuDomain
+		local cachedDomainLen=${#cachedMenuDomain}
+		if ((cachedDomainLen < 16)); then
+      domain=$(get_td_domain)       
+    fi
+
 		local domainLen=${#domain}
 		if ((domainLen > 15)); then
-
+      cachedMenuDomain=$domain
 			local html=$(curl -Lks "$domain")
 
 			if [[ "$html" =~ github.com/nightscout/cgm-remote-monitor ]]; then
@@ -1107,7 +1116,7 @@ get_watchdog_status_code_live() {
 			fi
 
 		else
-			status="detection_failed"
+			status="domain_failed"
 		fi
 
 	else
@@ -1142,6 +1151,9 @@ get_watchdog_status() {
 	"detection_failed")
 		printf "\U2753 nieznany stan"
 		;;
+	"domain_failed")
+		printf "\U2753 problem z domeną"
+		;;
 	"crashed")
 		printf "\U1F4A5 awaria NS"
 		;;
@@ -1606,7 +1618,7 @@ watchdog_check() {
 			fi
 
 		else
-			WATCHDOG_STATUS="detection_failed"
+			WATCHDOG_STATUS="domain_failed"
 		fi
 
 	else
diff --git a/src/lib.sh b/src/lib.sh
index 3170e7e..c919996 100644
--- a/src/lib.sh
+++ b/src/lib.sh
@@ -334,6 +334,7 @@ confirmdlg() {
 packages=()
 aptGetWasUpdated=0
 freshInstall=0
+cachedMenuDomain=''
 
 MIKRUS_APIKEY=''
 MIKRUS_HOST=''
@@ -1071,10 +1072,18 @@ get_watchdog_status_code_live() {
 	local COMBINED_STATUS="$NS_STATUS $DB_STATUS"
 
 	if [ "$COMBINED_STATUS" = "running running" ]; then
-		local domain=$(get_td_domain)
+	
+		status="detection_failed"
+
+    local domain=$cachedMenuDomain
+		local cachedDomainLen=${#cachedMenuDomain}
+		if ((cachedDomainLen < 16)); then
+      domain=$(get_td_domain)       
+    fi
+
 		local domainLen=${#domain}
 		if ((domainLen > 15)); then
-
+      cachedMenuDomain=$domain
 			local html=$(curl -Lks "$domain")
 
 			if [[ "$html" =~ github.com/nightscout/cgm-remote-monitor ]]; then
@@ -1091,7 +1100,7 @@ get_watchdog_status_code_live() {
 			fi
 
 		else
-			status="detection_failed"
+			status="domain_failed"
 		fi
 
 	else
@@ -1126,6 +1135,9 @@ get_watchdog_status() {
 	"detection_failed")
 		printf "\U2753 nieznany stan"
 		;;
+	"domain_failed")
+		printf "\U2753 problem z domeną"
+		;;
 	"crashed")
 		printf "\U1F4A5 awaria NS"
 		;;
@@ -1590,7 +1602,7 @@ watchdog_check() {
 			fi
 
 		else
-			WATCHDOG_STATUS="detection_failed"
+			WATCHDOG_STATUS="domain_failed"
 		fi
 
 	else
diff --git a/updated b/updated
index 4a4c9f4..7dda6c1 100644
--- a/updated
+++ b/updated
@@ -1 +1 @@
-2024-01-07T14:13:41.909Z
\ No newline at end of file
+2024-01-07T14:41:12.444Z
\ No newline at end of file