diff --git a/pygeoapi/api.py b/pygeoapi/api.py
index a5fdf38..d3c22c3 100644
--- a/pygeoapi/api.py
+++ b/pygeoapi/api.py
@@ -493,13 +493,13 @@ class API(object):
             'type': 'application/geo+json',
             'rel': 'self',
             'title': 'This document as GeoJSON',
-            'href': '{}/collections/{}/items'.format(
+            'href': '{}/collections/{}/items?f=json'.format(
                 self.config['server']['url'], dataset)
             }, {
             'type': 'text/html',
             'rel': 'alternate',
             'title': 'This document as HTML',
-            'href': '{}/collections/{}/items'.format(
+            'href': '{}/collections/{}/items?f=html'.format(
                 self.config['server']['url'], dataset)
             }, {
             'type': 'application/geo+json',
diff --git a/pygeoapi/flask_app.py b/pygeoapi/flask_app.py
index 8f21425..703328b 100644
--- a/pygeoapi/flask_app.py
+++ b/pygeoapi/flask_app.py
@@ -46,7 +46,7 @@ if 'PYGEOAPI_CONFIG' not in os.environ:
     raise RuntimeError('PYGEOAPI_CONFIG environment variable not set')
 
 with open(os.environ.get('PYGEOAPI_CONFIG')) as fh:
-    CONFIG = yaml.load(fh)
+    CONFIG = yaml.load(fh, Loader=yaml.FullLoader)
 
 # CORS: optionally enable from config.
 if CONFIG['server'].get('cors', False):
@@ -73,7 +73,7 @@ def root():
 @APP.route('/api')
 def api():
     with open(os.environ.get('PYGEOAPI_OPENAPI')) as ff:
-        openapi = yaml.load(ff)
+        openapi = yaml.load(ff, Loader=yaml.FullLoader)
 
     headers, status_code, content = api_.api(request.headers, request.args,
                                              openapi)
diff --git a/pygeoapi/openapi.py b/pygeoapi/openapi.py
index d90971e..4085307 100644
--- a/pygeoapi/openapi.py
+++ b/pygeoapi/openapi.py
@@ -184,6 +184,8 @@ def get_oas_30(cfg):
                 'tags': [k],
                 'parameters': [
                     {'$ref': '#/components/parameters/f'},
+                    {'$ref': '#/components/parameters/bbox'},
+                    {'$ref': '#/components/parameters/time'},
                     {'$ref': '#/components/parameters/limit'},
                     {'$ref': '#/components/parameters/sortby'},
                     {'$ref': '#/components/parameters/startindex'}
@@ -217,6 +219,11 @@ def get_oas_30(cfg):
                     'type': 'number',
                     'format': 'float'
                 }
+            elif v2['type'] == 'long':
+                schema = {
+                    'type': 'integer',
+                    'format': 'int64'
+                }
             else:
                 schema = {
                     'type': v2['type']
@@ -231,7 +238,7 @@ def get_oas_30(cfg):
                 'explode': False
             })
 
-        paths['{}/items/{{id}}'.format(collection_name_path)] = {
+        paths['{}/items/{{featureId}}'.format(collection_name_path)] = {
             'get': {
                 'summary': 'Get {} feature by id'.format(v['title']),
                 'description': v['description'],
@@ -374,6 +381,33 @@ def get_oas_30(cfg):
                 'style': 'form',
                 'explode': False
             },
+            'bbox': {
+                'name': 'bbox',
+                'in': 'query',
+                'description': 'The bbox parameter indicates the minimum bounding rectangle upon which to query the collection in WFS84 (minx, miny, maxx, maxy).',  # noqa
+                'required': False,
+                'schema': {
+                    'type': 'array',
+                    'minItems': 4,
+                    'maxItems': 6,
+                    'items': {
+                        'type': 'number'
+                    }
+                },
+                'style': 'form',
+                'explode': False
+            },
+            'datetime': {
+                'name': 'datetime',
+                'in': 'query',
+                'description': 'The time parameter indicates an RFC3339 formatted datetime (single, interval, open).',  # noqa
+                'required': False,
+                'schema': {
+                    'type': 'string'
+                },
+                'style': 'form',
+                'explode': False,
+            },
             'limit': {
                 'name': 'limit',
                 'in': 'query',
@@ -443,5 +477,5 @@ def generate_openapi_document(ctx, config_file):
     if config_file is None:
         raise click.ClickException('--config/-c required')
     with open(config_file) as ff:
-        s = yaml.load(ff)
+        s = yaml.load(ff, Loader=yaml.FullLoader)
         click.echo(yaml.safe_dump(get_oas(s), default_flow_style=False))
diff --git a/pygeoapi/provider/elasticsearch_.py b/pygeoapi/provider/elasticsearch_.py
index d2a80ff..83371f3 100644
--- a/pygeoapi/provider/elasticsearch_.py
+++ b/pygeoapi/provider/elasticsearch_.py
@@ -238,7 +238,8 @@ class ElasticsearchProvider(BaseProvider):
                             next(gen)
                     except StopIteration:
                         break
-                results['hits']['total'] = len(results['hits']['hits'])
+                results['hits']['total'] = \
+                    len(results['hits']['hits']) + startindex
             else:
                 results = self.es.search(index=self.index_name,
                                          from_=startindex, size=limit,
diff --git a/pygeoapi/templates/item.html b/pygeoapi/templates/item.html
index 2d646cc..ebeae9d 100644
--- a/pygeoapi/templates/item.html
+++ b/pygeoapi/templates/item.html
@@ -79,7 +79,7 @@
     <script>
     var map = L.map('items-map').setView([{{ 45 }}, {{ -75 }}], 10);
     map.addLayer(new L.TileLayer(
-        'http://tile.osm.org/{z}/{x}/{y}.png', {
+        'https://tile.osm.org/{z}/{x}/{y}.png', {
             maxZoom: 18,
             subdomains: '1234'
         }
diff --git a/pygeoapi/templates/items.html b/pygeoapi/templates/items.html
index c3d6c21..4cd9c1a 100644
--- a/pygeoapi/templates/items.html
+++ b/pygeoapi/templates/items.html
@@ -32,7 +32,7 @@
             <tr>
                 <th>id</th>
                 {% for k, v in data['features'][0]['properties'].items() %}
-                <th>{{ k }}</td>
+                <td>{{ k }}</td>
                 {% endfor %}
             </tr>
           </thead>
@@ -74,7 +74,7 @@
     <script>
     var map = L.map('items-map').setView([{{ 45 }}, {{ -75 }}], 5);
     map.addLayer(new L.TileLayer(
-        'http://tile.osm.org/{z}/{x}/{y}.png', {
+        'https://tile.osm.org/{z}/{x}/{y}.png', {
             maxZoom: 18,
             subdomains: '1234'
         }
diff --git a/tests/test_api.py b/tests/test_api.py
index 2769fca..0c51ccb 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -58,13 +58,13 @@ def make_req_headers(**kwargs):
 @pytest.fixture()
 def config():
     with open(get_test_file_path('pygeoapi-test-config.yml')) as fh:
-        return yaml.load(fh)
+        return yaml.load(fh, Loader=yaml.FullLoader)
 
 
 @pytest.fixture()
 def openapi():
     with open(get_test_file_path('pygeoapi-test-openapi.yml')) as fh:
-        return yaml.load(fh)
+        return yaml.load(fh, Loader=yaml.FullLoader)
 
 
 @pytest.fixture()