diff --git a/plinth/modules/avahi/__init__.py b/plinth/modules/avahi/__init__.py
index 886d227bf..f710c9c81 100644
--- a/plinth/modules/avahi/__init__.py
+++ b/plinth/modules/avahi/__init__.py
@@ -61,7 +61,7 @@ class AvahiApp(app_module.App):
         domain_type = DomainType('domain-type-local',
                                  _('Local Network Domain'),
                                  configuration_url='names:hostname',
-                                 can_have_certificate=False)
+                                 can_have_certificate=False, priority=10)
         self.add(domain_type)
 
         firewall = Firewall('firewall-avahi', info.name, ports=['mdns'],
diff --git a/plinth/modules/dynamicdns/__init__.py b/plinth/modules/dynamicdns/__init__.py
index 3fd109e26..ecc00053e 100644
--- a/plinth/modules/dynamicdns/__init__.py
+++ b/plinth/modules/dynamicdns/__init__.py
@@ -78,7 +78,7 @@ class DynamicDNSApp(app_module.App):
                                  edit_url='dynamicdns:domain-edit',
                                  delete_url='dynamicdns:domain-delete',
                                  add_url='dynamicdns:domain-add',
-                                 can_have_certificate=True)
+                                 can_have_certificate=True, priority=70)
         self.add(domain_type)
 
         users_and_groups = UsersAndGroups('users-and-groups-dynamicdns',
diff --git a/plinth/modules/names/__init__.py b/plinth/modules/names/__init__.py
index ab3848d99..8f0537d58 100644
--- a/plinth/modules/names/__init__.py
+++ b/plinth/modules/names/__init__.py
@@ -67,7 +67,7 @@ class NamesApp(app_module.App):
         domain_type = DomainType('domain-type-static', _('Domain (regular)'),
                                  delete_url='names:domain-delete',
                                  add_url='names:domain-add',
-                                 can_have_certificate=True)
+                                 can_have_certificate=True, priority=100)
         self.add(domain_type)
 
         daemon = ResolvedDaemon('daemon-names', 'systemd-resolved')
diff --git a/plinth/modules/names/components.py b/plinth/modules/names/components.py
index f3cd73a52..6b719089e 100644
--- a/plinth/modules/names/components.py
+++ b/plinth/modules/names/components.py
@@ -46,8 +46,8 @@ class DomainType(app.FollowerComponent):
     def __init__(self, component_id: str, display_name: str,
                  configuration_url: str | None = None,
                  edit_url: str | None = None, delete_url: str | None = None,
-                 add_url: str | None = None,
-                 can_have_certificate: bool = True):
+                 add_url: str | None = None, can_have_certificate: bool = True,
+                 priority: int = 50):
         """Initialize the domain type component.
 
         component_id should be a unique ID across all components of an app and
@@ -73,6 +73,10 @@ class DomainType(app.FollowerComponent):
 
         can_have_certificate indicates if this type of domain can have a TLS
         certificate that can be validated by a typical browser.
+
+        priority decides which domain will be used (by default) when an app can
+        only deal with a single domain. The domain with highest value will be
+        chosen by the app by default.
         """
         super().__init__(component_id)
 
@@ -82,6 +86,7 @@ class DomainType(app.FollowerComponent):
         self.delete_url = delete_url
         self.add_url = add_url
         self.can_have_certificate = can_have_certificate
+        self.priority = priority
 
         self._all[component_id] = self
 
diff --git a/plinth/modules/names/tests/test_components.py b/plinth/modules/names/tests/test_components.py
index 23784da8e..73ab4578f 100644
--- a/plinth/modules/names/tests/test_components.py
+++ b/plinth/modules/names/tests/test_components.py
@@ -26,13 +26,15 @@ def test_domain_type_init():
     """Test initialization of domain type object."""
     component = DomainType('test-component', 'x-display-name',
                            configuration_url='config_url', edit_url='edit_url',
-                           delete_url='delete_url', add_url='add_url')
+                           delete_url='delete_url', add_url='add_url',
+                           priority=80)
     assert component.component_id == 'test-component'
     assert component.display_name == 'x-display-name'
     assert component.configuration_url == 'config_url'
     assert component.edit_url == 'edit_url'
     assert component.delete_url == 'delete_url'
     assert component.add_url == 'add_url'
+    assert component.priority == 80
     assert component.can_have_certificate
     assert len(DomainType._all)
     assert DomainType._all['test-component'] == component
@@ -43,6 +45,7 @@ def test_domain_type_init():
     assert component.edit_url is None
     assert component.delete_url is None
     assert component.add_url is None
+    assert component.priority == 50
     assert not component.can_have_certificate
 
 
diff --git a/plinth/modules/pagekite/__init__.py b/plinth/modules/pagekite/__init__.py
index e39152e03..e9b5aa867 100644
--- a/plinth/modules/pagekite/__init__.py
+++ b/plinth/modules/pagekite/__init__.py
@@ -71,7 +71,7 @@ class PagekiteApp(app_module.App):
 
         domain_type = DomainType('domain-type-pagekite', _('PageKite Domain'),
                                  configuration_url='pagekite:index',
-                                 can_have_certificate=True)
+                                 can_have_certificate=True, priority=40)
         self.add(domain_type)
 
         daemon = Daemon('daemon-pagekite', self.DAEMON)
diff --git a/plinth/modules/tor/__init__.py b/plinth/modules/tor/__init__.py
index bd266fabe..980488f51 100644
--- a/plinth/modules/tor/__init__.py
+++ b/plinth/modules/tor/__init__.py
@@ -76,7 +76,7 @@ class TorApp(app_module.App):
 
         domain_type = DomainType('domain-type-tor', _('Tor Onion Service'),
                                  configuration_url='tor:index',
-                                 can_have_certificate=False)
+                                 can_have_certificate=False, priority=30)
         self.add(domain_type)
 
         firewall = Firewall('firewall-tor-relay', _('Tor Bridge Relay'),