diff --git a/filter_plugins/domain_redirect_mappings.py b/filter_plugins/domain_redirect_mappings.py
index 5ac86753..4b9fd305 100644
--- a/filter_plugins/domain_redirect_mappings.py
+++ b/filter_plugins/domain_redirect_mappings.py
@@ -8,9 +8,8 @@ class FilterModule(object):
         """
         Build a flat list of redirect mappings for all apps:
           - source: each alias domain
-          - target: the first canonical domain (app.domains.canonical[0] or default)
-
-        Logic for computing aliases and canonicals is identical to alias_domains_map + canonical_domains_map.
+          - target: the first canonical domain
+        Skip mappings where source == target, since they make no sense.
         """
         def parse_entry(domains_cfg, key, app_id):
             if key not in domains_cfg:
@@ -55,12 +54,9 @@ class FilterModule(object):
         for app_id, cfg in apps.items():
             domains_cfg = cfg.get('domains')
             if domains_cfg is None:
-                # no domains key → no aliases
                 alias_map[app_id] = []
                 continue
-
             if isinstance(domains_cfg, dict) and not domains_cfg:
-                # empty domains dict → only default
                 alias_map[app_id] = [default_domain(app_id, primary_domain)]
                 continue
 
@@ -79,13 +75,16 @@ class FilterModule(object):
 
             alias_map[app_id] = aliases
 
-        # 3) Build flat list of {source, target} entries
+        # 3) Build flat list of {source, target} entries,
+        #    skipping self-mappings
         mappings = []
         for app_id, sources in alias_map.items():
-            # pick first canonical domain as target
             canon_list = canonical_map.get(app_id, [])
             target = canon_list[0] if canon_list else default_domain(app_id, primary_domain)
             for src in sources:
+                if src == target:
+                    # skip self-redirects
+                    continue
                 mappings.append({
                     'source': src,
                     'target': target
diff --git a/roles/nginx-modifier-matomo/vars/main.yml b/roles/nginx-modifier-matomo/vars/main.yml
index 74eeb35f..3e097b0a 100644
--- a/roles/nginx-modifier-matomo/vars/main.yml
+++ b/roles/nginx-modifier-matomo/vars/main.yml
@@ -1,2 +1,2 @@
 base_domain:      "{{ domain | regex_replace('^(?:.*\\.)?(.+\\..+)$', '\\1') }}"
-verification_url: "{{ web_protocol }}://{{domains.matomo}}/index.php?module=API&method=SitesManager.getSitesIdFromSiteUrl&url=https://{{base_domain}}&format=json&token_auth={{applications.matomo.credentials.auth_token}}"
\ No newline at end of file
+verification_url: "{{ web_protocol }}://{{domains | get_domain('mastodon')}}/index.php?module=API&method=SitesManager.getSitesIdFromSiteUrl&url=https://{{base_domain}}&format=json&token_auth={{applications.matomo.credentials.auth_token}}"
\ No newline at end of file
diff --git a/tests/unit/test_domain_mappings.py b/tests/unit/test_domain_mappings.py
index fe4d2e50..d0ac490f 100644
--- a/tests/unit/test_domain_mappings.py
+++ b/tests/unit/test_domain_mappings.py
@@ -30,9 +30,7 @@ class TestDomainMappings(unittest.TestCase):
     def test_empty_domains_cfg(self):
         apps = {'app1': {'domains': {}}}
         default = 'app1.example.com'
-        expected = [
-            {'source': default, 'target': default}
-        ]
+        expected = []
         result = self.filter.domain_mappings(apps, self.primary)
         self.assertEqual(result, expected)
 
@@ -45,7 +43,6 @@ class TestDomainMappings(unittest.TestCase):
         default = 'app1.example.com'
         expected = [
             {'source': 'alias.com',    'target': default},
-            {'source': default,        'target': default},
         ]
         result = self.filter.domain_mappings(apps, self.primary)
         # order not important
@@ -84,10 +81,7 @@ class TestDomainMappings(unittest.TestCase):
             'app2': {'domains': {'canonical': ['c2.com']}},
         }
         expected = [
-            # app1
             {'source': 'a1.com',              'target': 'app1.example.com'},
-            {'source': 'app1.example.com',    'target': 'app1.example.com'},
-            # app2
             {'source': 'app2.example.com',    'target': 'c2.com'},
         ]
         result = self.filter.domain_mappings(apps, self.primary)