diff --git a/README.md b/README.md
index 0acf753..f6ecc1d 100644
--- a/README.md
+++ b/README.md
@@ -54,6 +54,8 @@ opencage            Forward/Reverse geocoding using OpenCage Geocoder API
 otx                 Requests information from AlienVault OTX
 permacc             Request Perma.cc information through the API
 pgp                 Search for information in PGP key servers
+pt                  Requests Passive Total database
+quad9               Check if a domain is blocked by Quad9
 robtex              Search in Robtex API (https://www.robtex.com/api/)
 safebrowsing        Check if the given domain is in Google safe Browsing list
 save                Save a webpage in cache platforms
diff --git a/harpoon/commands/quad9.py b/harpoon/commands/quad9.py
new file mode 100644
index 0000000..30e0e42
--- /dev/null
+++ b/harpoon/commands/quad9.py
@@ -0,0 +1,40 @@
+#! /usr/bin/env python
+import sys
+import json
+import requests
+from harpoon.commands.base import Command
+
+
+class CommandQuad9(Command):
+    """
+    # Quad9
+
+    Check if a domain is blocked by Quad9 https://quad9.net/
+
+    `harpoon quad9 DOMAIN`
+    """
+    name = "quad9"
+    description = "Check if a domain is blocked by Quad9"
+
+    def add_arguments(self, parser):
+        parser.add_argument('DOMAIN',  help='Domain to be checked')
+        parser.add_argument('--type', '-t', default='A',  help='DNS Type')
+        parser.add_argument('--verbose', '-v', action='store_true',  help='Display results')
+        self.parser = parser
+
+    def run(self, conf, args, plugins):
+        params = {
+            'name': args.DOMAIN,
+            'type': args.type,
+            'ct': 'application/dns-json',
+        }
+        r = requests.get("https://dns.quad9.net:5053/dns-query", params=params)
+        if r.status_code != 200:
+            print('Problem querying quad9 :(')
+            sys.exit(1)
+        if r.json()['Status'] == 3:
+            print("{} - BLOCKED".format(args.DOMAIN))
+        else:
+            print("{} - NOT BLOCKED".format(args.DOMAIN))
+        if args.verbose:
+            print(json.dumps(r.json(), indent=4))