diff --git a/Casks/d/dnsmonitor.rb b/Casks/d/dnsmonitor.rb
new file mode 100644
index 0000000000..4ca62022f7
--- /dev/null
+++ b/Casks/d/dnsmonitor.rb
@@ -0,0 +1,20 @@
+cask "dnsmonitor" do
+  version "1.0.1"
+  sha256 "ba0a54877cea0e3731271621ee09f4a6877548b5bdcbf785ba38862600bbabaf"
+
+  url "https://github.com/objective-see/DNSMonitor/releases/download/v#{version}/DNSMonitor_#{version}.zip",
+      verified: "github.com/objective-see/DNSMonitor/"
+  name "dnsmonitor"
+  desc "Monitor DNS activity"
+  homepage ""
+
+  livecheck do
+    url :url
+    strategy :github_latest
+  end
+
+  depends_on macos: ">= :catalina"
+
+  app "DNSMonitor.app"
+  binary "#{appdir}/DNSMonitor.app/Contents/MacOS/DNSMonitor", target: "dnsmonitor"
+end