diff --git a/.travis.yml b/.travis.yml
index c47fb43..0503b58 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,9 +2,10 @@ os: linux
 language: python
 python:
   - "2.7"
-  - "3.5"
   - "3.6"
   - "3.7"
+  - "3.8"
+  - "3.9"
 install:
   - python setup.py install
   - pip install coveralls
diff --git a/iiif-presentation-validator.py b/iiif-presentation-validator.py
index 79ee83c..3da51a5 100755
--- a/iiif-presentation-validator.py
+++ b/iiif-presentation-validator.py
@@ -69,6 +69,10 @@ def check_manifest(self, data, version, url=None, warnings=[]):
                 infojson = schemavalidator.validate(data, version, url)
                 for error in infojson['errorList']:
                     error.pop('error', None)
+
+                mf = json.loads(data)
+                if url and 'id' in mf and mf['id'] != url:
+                    raise ValidationError("The manifest id ({}) should be the same as the URL it is published at ({}).".format(mf["id"], url))
             except ValidationError as e:
                 infojson = {
                     'received': data,
@@ -93,6 +97,8 @@ def check_manifest(self, data, version, url=None, warnings=[]):
             try:
                 mf = reader.read()
                 mf.toJSON()
+                if url and mf.id != url:
+                    raise ValidationError("Manifest @id ({}) is different to the location where it was retrieved ({})".format(mf.id, url))
                 # Passed!
                 okay = 1
             except Exception as e:
diff --git a/tests/test_validator.py b/tests/test_validator.py
index b9ba60c..5da9e0e 100644
--- a/tests/test_validator.py
+++ b/tests/test_validator.py
@@ -95,11 +95,11 @@ def test05_do_GET_test(self):
         # input data works only the first time. Instead create a new request
         # object to similate each web request, with data that sets request.environ
         v = val_mod.Validator()
-        request = LocalRequest({'QUERY_STRING': 'url=https://example.org/a'})
+        request = LocalRequest({'QUERY_STRING': 'url=http://iiif.io/api/presentation/2.0/example/fixtures/1/manifest.json'})
         v.fetch = Mock(return_value=(read_fixture('fixtures/1/manifest.json'), MockWebHandle()))
         j = json.loads(v.do_GET_test())
         self.assertEqual(j['okay'], 1)
-        self.assertEqual(j['url'], 'https://example.org/a')
+        self.assertEqual(j['url'], 'http://iiif.io/api/presentation/2.0/example/fixtures/1/manifest.json')
         # fetch failure
         v = val_mod.Validator()
         request = LocalRequest({'QUERY_STRING': 'url=http://example.org/a'})