diff --git a/src/freedombone-utils-config b/src/freedombone-utils-config
index 6cc9eeffb2bc1320fb67a939d4487f34c9d4627b..3b0f5585ee9db661878ced3a4bfe86fd81a883e5 100755
--- a/src/freedombone-utils-config
+++ b/src/freedombone-utils-config
@@ -181,125 +181,30 @@ function check_system_type {
     echo "System type: $SYSTEM_TYPE"
 }
 
-# check that domain names are sensible
+# check that domain names are valid and that they are unique for each app
 function check_domains {
-    if [ ${#WIKI_DOMAIN_NAME} -gt 1 ]; then
-        function_check test_domain_name
-        test_domain_name "$WIKI_DOMAIN_NAME"
-
-        if [[ "$test_domain_name" == "$FULLBLOG_DOMAIN_NAME" ]]; then
-            echo $'Wiki domain name is the same as blog domain name. They must be different'
-            exit 97326
-        fi
-        if [[ "$test_domain_name" == "$MICROBLOG_DOMAIN_NAME" ]]; then
-            echo $'Wiki domain name is the same as microblog domain name. They must be different'
-            exit 36827
-        fi
-        if [[ "$test_domain_name" == "$HUBZILLA_DOMAIN_NAME" ]]; then
-            echo $'Wiki domain name is the same as hubzilla domain name. They must be different'
-            exit 65848
-        fi
-        if [ ${#GIT_DOMAIN_NAME} -gt 1 ]; then
-            if [[ "$test_domain_name" == "$GIT_DOMAIN_NAME" ]]; then
-                echo $'Wiki domain name is the same as Gogs domain name. They must be different'
-                exit 73529
-            fi
-        fi
-    fi
-
-    if [ ${#FULLBLOG_DOMAIN_NAME} -gt 1 ]; then
-        function_check test_domain_name
-        test_domain_name "$FULLBLOG_DOMAIN_NAME"
-
-        if [[ "$test_domain_name" == "$WIKI_DOMAIN_NAME" ]]; then
-            echo $'Blog domain name is the same as wiki domain name. They must be different'
-            exit 62348
-        fi
-        if [[ "$test_domain_name" == "$MICROBLOG_DOMAIN_NAME" ]]; then
-            echo $'Blog domain name is the same as microblog domain name. They must be different'
-            exit 38236
-        fi
-        if [[ "$test_domain_name" == "$HUBZILLA_DOMAIN_NAME" ]]; then
-            echo $'Blog domain name is the same as hubzilla domain name. They must be different'
-            exit 35483
-        fi
-        if [ $GIT_DOMAIN_NAME ]; then
-            if [[ "$test_domain_name" == "$GIT_DOMAIN_NAME" ]]; then
-                echo $'Blog domain name is the same as Gogs domain name. They must be different'
-                exit 84695
-            fi
-        fi
-    fi
-
-    if [ ${#MICROBLOG_DOMAIN_NAME} -gt 1 ]; then
-        function_check test_domain_name
-        test_domain_name "$MICROBLOG_DOMAIN_NAME"
-
-        if [[ "$test_domain_name" == "$WIKI_DOMAIN_NAME" ]]; then
-            echo $'Microblog domain name is the same as wiki domain name. They must be different'
-            exit 73924
-        fi
-        if [[ "$test_domain_name" == "$FULLBLOG_DOMAIN_NAME" ]]; then
-            echo $'Microblog domain name is the same as blog domain name. They must be different'
-            exit 26832
-        fi
-        if [[ "$test_domain_name" == "$HUBZILLA_DOMAIN_NAME" ]]; then
-            echo $'Microblog domain name is the same as hubzilla domain name. They must be different'
-            exit 678382
-        fi
-        if [ $GIT_DOMAIN_NAME ]; then
-            if [[ "$test_domain_name" == "$GIT_DOMAIN_NAME" ]]; then
-                echo $'Microblog domain name is the same as Gogs domain name. They must be different'
-                exit 684325
-            fi
-        fi
-    fi
-
-    if [ $HUBZILLA_DOMAIN_NAME ]; then
-        function_check test_domain_name
-        test_domain_name "$HUBZILLA_DOMAIN_NAME"
-
-        if [[ "$test_domain_name" == "$WIKI_DOMAIN_NAME" ]]; then
-            echo $'Hubzilla domain name is the same as wiki domain name. They must be different'
-            exit 83682
-        fi
-        if [[ "$test_domain_name" == "$FULLBLOG_DOMAIN_NAME" ]]; then
-            echo $'Hubzilla domain name is the same as blog domain name. They must be different'
-            exit 74817
-        fi
-        if [[ "$test_domain_name" == "$MICROBLOG_DOMAIN_NAME" ]]; then
-            echo $'Hubzilla domain name is the same as microblog domain name. They must be different'
-            exit 83683
-        fi
-        if [ ${#GIT_DOMAIN_NAME} -gt 1 ]; then
-            if [[ "$test_domain_name" == "$GIT_DOMAIN_NAME" ]]; then
-                echo $'Hubzilla domain name is the same as Gogs domain name. They must be different'
-                exit 135523
+    specified_domains=$(cat $CONFIGURATION_FILE | grep "_DOMAIN_NAME" | uniq)
+    domains_array=($specified_domains)
+    checked_domains=()
+
+    for d in "${domains_array[@]}"
+    do
+        domain_param=$(echo "$d" | awk -F '=' '{print $1}')
+        if [[ $domain_param != "DEFAULT_DOMAIN_NAME" ]]; then
+            domain_value=$(echo "$d" | awk -F '=' '{print $2}')
+            item_in_array "${domain_value}" "${checked_domains[@]}"
+            if [[ $? != 0 ]]; then
+                # test that this is a valid domain name
+                function_check test_domain_name
+                test_domain_name "$domain_value"
+                # add it to the list of domains
+                checked_domains+=("$domain_value")
+            else
+                echo $"Domain ${domain_value} collides with another app. The domain for each app should be unique."
+                exit 673925
             fi
         fi
-    fi
-
-    if [ ${#GIT_DOMAIN_NAME} -gt 1 ]; then
-        function_check test_domain_name
-        test_domain_name "$GIT_DOMAIN_NAME"
-
-        if [[ "$test_domain_name" == "$WIKI_DOMAIN_NAME" ]]; then
-            echo $'Hubzilla domain name is the same as wiki domain name. They must be different'
-            exit 83682
-        fi
-        if [[ "$test_domain_name" == "$FULLBLOG_DOMAIN_NAME" ]]; then
-            echo $'Hubzilla domain name is the same as blog domain name. They must be different'
-            exit 74817
-        fi
-        if [[ "$test_domain_name" == "$MICROBLOG_DOMAIN_NAME" ]]; then
-            echo $'Hubzilla domain name is the same as microblog domain name. They must be different'
-            exit 83683
-        fi
-        if [[ "$test_domain_name" == "$HUBZILLA_DOMAIN_NAME" ]]; then
-            echo $'Microblog domain name is the same as hubzilla domain name. They must be different'
-            exit 678382
-        fi
-    fi
+    done
 }
 
 # NOTE: deliberately no exit 0