diff --git a/xmrnodes/app.py b/xmrnodes/app.py
index e77ee43..2ce9b18 100644
--- a/xmrnodes/app.py
+++ b/xmrnodes/app.py
@@ -33,7 +33,7 @@ def index():
         flash("Wow, wtf hackerman. Cool it.")
         page = 1
 
-    nodes = Node.select().where(Node.available==True).where(Node.is_monero==True).order_by(
+    nodes = Node.select().where(Node.validated==True).where(Node.is_monero==True).order_by(
         Node.datetime_entered.desc()
     )
     paginated = nodes.paginate(page, itp)
@@ -73,6 +73,32 @@ def add():
                 node.save()
     return redirect("/")
 
+@app.cli.command("check")
+def check():
+    nodes = Node.select().where(Node.validated == True)
+    for node in nodes:
+        now = datetime.utcnow()
+        logging.info(f"Attempting to check {node.url}")
+        try:
+            r = requests.get(node.url + "/get_info", timeout=5)
+            r.raise_for_status()
+            assert "status" in r.json()
+            assert "offline" in r.json()
+            assert "height" in r.json()
+            if r.json()["status"] == "OK":
+                logging.info("success")
+                node.available = True
+                node.last_height = r.json()["height"]
+            else:
+                raise
+        except:
+            logging.info("fail")
+            node.datetime_failed = now
+            node.available = False
+        finally:
+            node.datetime_checked = now
+            node.save()
+
 @app.cli.command("validate")
 def validate():
     nodes = Node.select().where(Node.validated == False)
@@ -84,7 +110,7 @@ def validate():
             logging.info("onion address found")
             node.is_tor = True
         try:
-            r = requests.get(node.url + "/get_info", timeout=3)
+            r = requests.get(node.url + "/get_info", timeout=5)
             r.raise_for_status()
             assert "height" in r.json()
             assert "nettype" in r.json()
@@ -94,6 +120,7 @@ def validate():
                 node.nettype = nettype
                 node.available = True
                 node.validated = True
+                node.last_height = r.json()["height"]
                 node.datetime_checked = now
                 node.is_monero = is_monero(node.url)
                 node.save()
diff --git a/xmrnodes/helpers.py b/xmrnodes/helpers.py
index e82661b..57c3561 100644
--- a/xmrnodes/helpers.py
+++ b/xmrnodes/helpers.py
@@ -8,7 +8,7 @@ def is_monero(url):
         "76ee3cc98646292206cd3e86f74d88b4dcc1d937088645e9b0cbca84b7ce74eb"  #stagenet
     ]
     try:
-        r = r_get(url + "/json_rpc", json=data)
+        r = r_get(url + "/json_rpc", json=data, timeout=5)
         r.raise_for_status()
         assert "result" in r.json()
         is_xmr = r.json()["result"]["block_header"]["hash"] in known_hashes
diff --git a/xmrnodes/models.py b/xmrnodes/models.py
index 8f66b90..77cc04d 100644
--- a/xmrnodes/models.py
+++ b/xmrnodes/models.py
@@ -13,6 +13,7 @@ class Node(Model):
     available = BooleanField(default=False)
     validated = BooleanField(default=False)
     nettype = CharField(null=True)
+    last_height = IntegerField(null=True)
     is_monero = BooleanField(default=False)
     datetime_entered = DateTimeField(default=datetime.utcnow)
     datetime_checked = DateTimeField(default=None, null=True)
diff --git a/xmrnodes/templates/index.html b/xmrnodes/templates/index.html
index dc53e17..37487d7 100644
--- a/xmrnodes/templates/index.html
+++ b/xmrnodes/templates/index.html
@@ -37,6 +37,7 @@
           <th>Tor</th>
           <th>Available</th>
           <th>Network</th>
+          <th>Height</th>
           <th>Last Checked</th>
         </tr>
       </thead>
@@ -47,6 +48,7 @@
           <td>{{ node.is_tor }}</td>
           <td>{{ node.available }}</td>
           <td>{{ node.nettype }}</td>
+          <td>{{ node.last_height }}</td>
           <td>{{ node.datetime_checked | humanize }}</td>
         </tr>
       {% endfor %}