diff --git a/netbox_diode_plugin/plugin_config.py b/netbox_diode_plugin/plugin_config.py
index eb1cf56..e115e86 100644
--- a/netbox_diode_plugin/plugin_config.py
+++ b/netbox_diode_plugin/plugin_config.py
@@ -22,13 +22,19 @@ def _parse_diode_target(target: str) -> tuple[str, str, bool]:
     """Parse the target into authority, path and tls_verify."""
     parsed_target = urlparse(target)
 
-    if parsed_target.scheme not in ["grpc", "grpcs"]:
-        raise ValueError("target should start with grpc:// or grpcs://")
+    if parsed_target.scheme not in ["grpc", "grpcs", "http", "https"]:
+        raise ValueError("target should start with grpc://, grpcs://, http:// or https://")
 
-    tls_verify = parsed_target.scheme == "grpcs"
+    tls_verify = parsed_target.scheme in ["grpcs", "https"]
 
     authority = parsed_target.netloc
 
+    if ":" not in authority:
+        if parsed_target.scheme in ["grpc", "http"]:
+            authority += ":80"
+        elif parsed_target.scheme in ["grpcs", "https"]:
+            authority += ":443"
+
     return authority, parsed_target.path, tls_verify
 
 
diff --git a/netbox_diode_plugin/tests/test_plugin_config.py b/netbox_diode_plugin/tests/test_plugin_config.py
index ade00c7..a5dedac 100644
--- a/netbox_diode_plugin/tests/test_plugin_config.py
+++ b/netbox_diode_plugin/tests/test_plugin_config.py
@@ -2,10 +2,11 @@
 # Copyright 2025 NetBox Labs, Inc.
 """Diode NetBox Plugin - Tests."""
 
+import pytest
 from django.contrib.auth import get_user_model
 from django.test import TestCase
 
-from netbox_diode_plugin.plugin_config import get_diode_auth_introspect_url, get_diode_user
+from netbox_diode_plugin.plugin_config import _parse_diode_target, get_diode_auth_introspect_url, get_diode_user
 
 User = get_user_model()
 
@@ -24,3 +25,46 @@ def test_get_diode_user(self):
         expected_diode_user = User.objects.get(username="diode")
         self.assertEqual(diode_user, expected_diode_user)
 
+    def test__parse_diode_target_handles_ftp_prefix(self):
+        """Check that _parse_diode_target raises an error when the target contains ftp://."""
+        with pytest.raises(ValueError):
+            _parse_diode_target("ftp://localhost:8081")
+
+    def test__parse_diode_target_parses_authority_correctly(self):
+        """Check that _parse_diode_target parses the authority correctly."""
+        authority, path, tls_verify = _parse_diode_target("grpc://localhost:8081")
+        assert authority == "localhost:8081"
+        assert path == ""
+        assert tls_verify is False
+
+    def test__parse_diode_target_adds_default_port_if_missing(self):
+        """Check that _parse_diode_target adds the default port if missing."""
+        authority, _, _ = _parse_diode_target("grpc://localhost")
+        assert authority == "localhost:80"
+        authority, _, _ = _parse_diode_target("http://localhost")
+        assert authority == "localhost:80"
+        authority, _, _ = _parse_diode_target("grpcs://localhost")
+        assert authority == "localhost:443"
+        authority, _, _ = _parse_diode_target("https://localhost")
+        assert authority == "localhost:443"
+
+    def test__parse_diode_target_parses_path_correctly(self):
+        """Check that _parse_diode_target parses the path correctly."""
+        _, path, _ = _parse_diode_target("grpc://localhost:8081/my/path")
+        assert path == "/my/path"
+
+    def test__parse_diode_target_handles_no_path(self):
+        """Check that _parse_diode_target handles no path."""
+        _, path, _ = _parse_diode_target("grpc://localhost:8081")
+        assert path == ""
+
+    def test__parse_diode_target_parses_tls_verify_correctly(self):
+        """Check that _parse_diode_target parses tls_verify correctly."""
+        _, _, tls_verify = _parse_diode_target("grpc://localhost:8081")
+        assert tls_verify is False
+        _, _, tls_verify = _parse_diode_target("http://localhost:8081")
+        assert tls_verify is False
+        _, _, tls_verify = _parse_diode_target("grpcs://localhost:8081")
+        assert tls_verify is True
+        _, _, tls_verify = _parse_diode_target("https://localhost:8081")
+        assert tls_verify is True