diff --git a/tests.py b/tests.py
index 2bebb1f2c..d87d1229c 100644
--- a/tests.py
+++ b/tests.py
@@ -33,6 +33,7 @@ from follow import clearFollows
 from follow import clearFollowers
 from follow import sendFollowRequestViaServer
 from follow import sendUnfollowRequestViaServer
+from utils import decodedHost
 from utils import getFullDomain
 from utils import validNickname
 from utils import firstParagraphFromString
@@ -3059,9 +3060,23 @@ def testMastoApi():
     assert nickname2 == nickname
 
 
+def testDomainHandling():
+    print('testDomainHandling')
+    testDomain = 'localhost'
+    assert decodedHost(testDomain) == testDomain
+    testDomain = '127.0.0.1:60'
+    assert decodedHost(testDomain) == testDomain
+    testDomain = '192.168.5.153'
+    assert decodedHost(testDomain) == testDomain
+    testDomain = 'xn--espaa-rta.icom.museum'
+    print(decodedHost(testDomain))
+    assert decodedHost(testDomain) == "españa.icom.museum"
+
+
 def runAllTests():
     print('Running tests...')
     testFunctions()
+    testDomainHandling()
     testMastoApi()
     testLinksWithinPost()
     testReplyToPublicPost()
diff --git a/utils.py b/utils.py
index 232adfa55..4ca5350f1 100644
--- a/utils.py
+++ b/utils.py
@@ -36,12 +36,11 @@ def decodedHost(host: str) -> str:
     https://en.wikipedia.org/wiki/Internationalized_domain_name
     """
     if ':' not in host:
-       if not _localNetworkHost(host):
-           if not host.endswith('.onion'):
-               if not host.endswith('.i2p'):
-                   # For domains on ports numbers don't use idna
-                   # eg. mydomain:8000
-                   return idna.decode(host)
+        # eg. mydomain:8000
+        if not _localNetworkHost(host):
+            if not host.endswith('.onion'):
+                if not host.endswith('.i2p'):
+                    return idna.decode(host)
     return host