diff --git a/advanced/Scripts/database_migration/gravity-db.sh b/advanced/Scripts/database_migration/gravity-db.sh
index 0fe90d8a..d7de0ec5 100644
--- a/advanced/Scripts/database_migration/gravity-db.sh
+++ b/advanced/Scripts/database_migration/gravity-db.sh
@@ -41,4 +41,11 @@ upgrade_gravityDB(){
 		sqlite3 "${database}" < "/etc/.pihole/advanced/Scripts/database_migration/gravity/2_to_3.sql"
 		version=3
 	fi
+	if [[ "$version" == "3" ]]; then
+		# This migration script unifies the formally separated domain
+		# lists into a single table with a UNIQUE domain constraint
+		echo -e "  ${INFO} Upgrading gravity database from version 3 to 4"
+		sqlite3 "${database}" < "${scriptPath}/3_to_4.sql"
+		version=6
+	fi
 }
diff --git a/advanced/Scripts/database_migration/gravity/3_to_4.sql b/advanced/Scripts/database_migration/gravity/3_to_4.sql
new file mode 100644
index 00000000..8d1c1d26
--- /dev/null
+++ b/advanced/Scripts/database_migration/gravity/3_to_4.sql
@@ -0,0 +1,96 @@
+.timeout 30000
+
+PRAGMA FOREIGN_KEYS=OFF;
+
+BEGIN TRANSACTION;
+
+CREATE TABLE domainlist
+(
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	type INTEGER NOT NULL DEFAULT 0,
+	domain TEXT UNIQUE NOT NULL,
+	enabled BOOLEAN NOT NULL DEFAULT 1,
+	date_added INTEGER NOT NULL DEFAULT (cast(strftime('%s', 'now') as int)),
+	date_modified INTEGER NOT NULL DEFAULT (cast(strftime('%s', 'now') as int)),
+	comment TEXT
+);
+
+ALTER TABLE whitelist ADD COLUMN type INTEGER;
+UPDATE whitelist SET type = 0;
+INSERT INTO domainlist (type,domain,enabled,date_added,date_modified,comment)
+    SELECT type,domain,enabled,date_added,date_modified,comment FROM whitelist;
+
+ALTER TABLE blacklist ADD COLUMN type INTEGER;
+UPDATE blacklist SET type = 1;
+INSERT INTO domainlist (type,domain,enabled,date_added,date_modified,comment)
+    SELECT type,domain,enabled,date_added,date_modified,comment FROM blacklist;
+
+ALTER TABLE regex_whitelist ADD COLUMN type INTEGER;
+UPDATE regex_whitelist SET type = 2;
+INSERT INTO domainlist (type,domain,enabled,date_added,date_modified,comment)
+    SELECT type,domain,enabled,date_added,date_modified,comment FROM regex_whitelist;
+
+ALTER TABLE regex_blacklist ADD COLUMN type INTEGER;
+UPDATE regex_blacklist SET type = 3;
+INSERT INTO domainlist (type,domain,enabled,date_added,date_modified,comment)
+    SELECT type,domain,enabled,date_added,date_modified,comment FROM regex_blacklist;
+
+DROP TABLE whitelist_by_group;
+DROP TABLE blacklist_by_group;
+DROP TABLE regex_whitelist_by_group;
+DROP TABLE regex_blacklist_by_group;
+CREATE TABLE domainlist_by_group
+(
+	domainlist_id INTEGER NOT NULL REFERENCES domainlist (id),
+	group_id INTEGER NOT NULL REFERENCES "group" (id),
+	PRIMARY KEY (domainlist_id, group_id)
+);
+
+DROP TRIGGER tr_whitelist_update;
+DROP TRIGGER tr_blacklist_update;
+DROP TRIGGER tr_regex_whitelist_update;
+DROP TRIGGER tr_regex_blacklist_update;
+CREATE TRIGGER tr_domainlist_update AFTER UPDATE ON domainlist
+    BEGIN
+      UPDATE domainlist SET date_modified = (cast(strftime('%s', 'now') as int)) WHERE domain = NEW.domain;
+    END;
+
+DROP VIEW vw_whitelist;
+CREATE VIEW vw_whitelist AS SELECT domain, domainlist.id AS id, domainlist_by_group.group_id AS group_id
+    FROM domainlist
+    LEFT JOIN domainlist_by_group ON domainlist_by_group.domainlist_id = domainlist.id
+    LEFT JOIN "group" ON "group".id = domainlist_by_group.group_id
+    WHERE domainlist.enabled = 1 AND (domainlist_by_group.group_id IS NULL OR "group".enabled = 1)
+    AND domainlist.type = 0
+    ORDER BY domainlist.id;
+
+DROP VIEW vw_blacklist;
+CREATE VIEW vw_blacklist AS SELECT domain, domainlist.id AS id, domainlist_by_group.group_id AS group_id
+    FROM domainlist
+    LEFT JOIN domainlist_by_group ON domainlist_by_group.domainlist_id = domainlist.id
+    LEFT JOIN "group" ON "group".id = domainlist_by_group.group_id
+    WHERE domainlist.enabled = 1 AND (domainlist_by_group.group_id IS NULL OR "group".enabled = 1)
+    AND domainlist.type = 1
+    ORDER BY domainlist.id;
+
+DROP VIEW vw_regex_whitelist;
+CREATE VIEW vw_regex_whitelist AS SELECT domain, domainlist.id AS id, domainlist_by_group.group_id AS group_id
+    FROM domainlist
+    LEFT JOIN domainlist_by_group ON domainlist_by_group.domainlist_id = domainlist.id
+    LEFT JOIN "group" ON "group".id = domainlist_by_group.group_id
+    WHERE domainlist.enabled = 1 AND (domainlist_by_group.group_id IS NULL OR "group".enabled = 1)
+    AND domainlist.type = 2
+    ORDER BY domainlist.id;
+
+DROP VIEW vw_regex_blacklist;
+CREATE VIEW vw_regex_blacklist AS SELECT domain, domainlist.id AS id, domainlist_by_group.group_id AS group_id
+    FROM domainlist
+    LEFT JOIN domainlist_by_group ON domainlist_by_group.domainlist_id = domainlist.id
+    LEFT JOIN "group" ON "group".id = domainlist_by_group.group_id
+    WHERE domainlist.enabled = 1 AND (domainlist_by_group.group_id IS NULL OR "group".enabled = 1)
+    AND domainlist.type = 3
+    ORDER BY domainlist.id;
+
+UPDATE info SET value = 6 WHERE property = 'version';
+
+COMMIT;
diff --git a/advanced/Scripts/list.sh b/advanced/Scripts/list.sh
index 6a606665..483b7153 100755
--- a/advanced/Scripts/list.sh
+++ b/advanced/Scripts/list.sh
@@ -27,6 +27,17 @@ listname=""
 colfile="/opt/pihole/COL_TABLE"
 source ${colfile}
 
+getTypeID() {
+    if [[ "$1" == "whitelist" ]]; then
+        echo "0"
+    elif  [[ "$1" == "blacklist" ]]; then
+        echo "1"
+    elif  [[ "$1" == "regex_whitelist" ]]; then
+        echo "2"
+    elif  [[ "$1" == "regex_blacklist" ]]; then
+        echo "3"
+    fi
+}
 
 helpFunc() {
     if [[ "${listType}" == "whitelist" ]]; then
@@ -129,13 +140,14 @@ ProcessDomainList() {
 }
 
 AddDomain() {
-    local domain list num
+    local domain list num typeID
     # Use printf to escape domain. %q prints the argument in a form that can be reused as shell input
     domain="$1"
     list="$2"
+    typeID="$(getTypeID "${list}")"
 
     # Is the domain in the list we want to add it to?
-    num="$(sqlite3 "${gravityDBfile}" "SELECT COUNT(*) FROM ${list} WHERE domain = '${domain}';")"
+    num="$(sqlite3 "${gravityDBfile}" "SELECT COUNT(*) FROM domainlist WHERE domain = '${domain}' AND type = ${typeID};")"
 
     if [[ "${num}" -ne 0 ]]; then
       if [[ "${verbose}" == true ]]; then
@@ -151,17 +163,18 @@ AddDomain() {
     reload=true
     # Insert only the domain here. The enabled and date_added fields will be filled
     # with their default values (enabled = true, date_added = current timestamp)
-    sqlite3 "${gravityDBfile}" "INSERT INTO ${list} (domain) VALUES ('${domain}');"
+    sqlite3 "${gravityDBfile}" "INSERT INTO domainlist (domain,type) VALUES ('${domain}',${typeID});"
 }
 
 RemoveDomain() {
-    local domain list num
+    local domain list num typeID
     # Use printf to escape domain. %q prints the argument in a form that can be reused as shell input
     domain="$1"
     list="$2"
+    typeID="$(getTypeID "${list}")"
 
     # Is the domain in the list we want to remove it from?
-    num="$(sqlite3 "${gravityDBfile}" "SELECT COUNT(*) FROM ${list} WHERE domain = '${domain}';")"
+    num="$(sqlite3 "${gravityDBfile}" "SELECT COUNT(*) FROM domainlist WHERE domain = '${domain}' AND type = ${typeID};")"
 
     if [[ "${num}" -eq 0 ]]; then
       if [[ "${verbose}" == true ]]; then
@@ -176,14 +189,15 @@ RemoveDomain() {
     fi
     reload=true
     # Remove it from the current list
-    sqlite3 "${gravityDBfile}" "DELETE FROM ${list} WHERE domain = '${domain}';"
+    sqlite3 "${gravityDBfile}" "DELETE FROM domainlist WHERE domain = '${domain}' AND type = ${typeID};"
 }
 
 Displaylist() {
-    local list listname count num_pipes domain enabled status nicedate
+    local list listname count num_pipes domain enabled status nicedate typeID
 
     listname="${listType}"
-    data="$(sqlite3 "${gravityDBfile}" "SELECT domain,enabled,date_modified FROM ${listType};" 2> /dev/null)"
+    typeID="$(getTypeID "${listType}")"
+    data="$(sqlite3 "${gravityDBfile}" "SELECT domain,enabled,date_modified FROM domainlist WHERE type = ${typeID};" 2> /dev/null)"
 
     if [[ -z $data ]]; then
         echo -e "Not showing empty list"
@@ -221,7 +235,9 @@ Displaylist() {
 }
 
 NukeList() {
-    sqlite3 "${gravityDBfile}" "DELETE FROM ${listType};"
+    local typeID
+    typeID=$(getTypeID "${list}")
+    sqlite3 "${gravityDBfile}" "DELETE FROM domainlist WHERE type = ${typeID};"
 }
 
 for var in "$@"; do