diff --git a/src/server.ts b/src/server.ts
index c83609d..3692ded 100644
--- a/src/server.ts
+++ b/src/server.ts
@@ -1,20 +1,23 @@
 import express, { Express } from "express";
 import * as Eta from "eta";
-import { Sonos, servicesFrom } from "./sonos";
+import { Sonos, servicesFrom, registrationStatus } from "./sonos";
 
 function server(sonos: Sonos): Express {
   const app = express();
-  app.use(express.static("./web/public"));
 
+  app.use(express.static("./web/public"));
   app.engine("eta", Eta.renderFile);
+
   app.set("view engine", "eta");
   app.set("views", "./web/views");
 
   app.get("/", (_, res) => {
     sonos.devices().then(devices => {
+      const services = servicesFrom(devices)
       res.render("index", {
         devices,
-        services: servicesFrom(devices),
+        services,
+        registration: registrationStatus(services)
       })
     })
   });
diff --git a/src/sonos.ts b/src/sonos.ts
index 2b38451..a987166 100644
--- a/src/sonos.ts
+++ b/src/sonos.ts
@@ -16,6 +16,13 @@ export type Service = {
   id: number;
 };
 
+export type BonobRegistrationStatus = 'registered' | 'not-registered'
+
+export const BONOB_SERVICE: Service = {
+  name: "bonob",
+  id: 245
+}
+
 export interface Sonos {
   devices: () => Promise<Device[]>;
 }
@@ -34,6 +41,14 @@ export const servicesFrom = (devices: Device[]) =>
     "name"
   );
 
+export const registrationStatus = (services: Service[]): BonobRegistrationStatus => {
+  if(services.find(s => s.id == BONOB_SERVICE.id) != undefined) {
+    return "registered"
+  } else {
+    return "not-registered"
+  }
+}
+
 export const asDevice = (sonosDevice: SonosDevice): Promise<Device> =>
   sonosDevice.MusicServicesService.ListAndParseAvailableServices().then(
     (services) => ({
diff --git a/tests/index.test.ts b/tests/index.test.ts
index 4e1bea9..f43dfd6 100644
--- a/tests/index.test.ts
+++ b/tests/index.test.ts
@@ -1,6 +1,6 @@
 import request from "supertest";
 import makeServer from "../src/server";
-import { SONOS_DISABLED, Sonos, Device } from "../src/sonos";
+import { SONOS_DISABLED, Sonos, Device, BONOB_SERVICE } from "../src/sonos";
 
 describe("index", () => {
   describe("when sonos integration is disabled", () => {
@@ -16,42 +16,41 @@ describe("index", () => {
     });
   });
 
-  const device1 : Device = {
-    name: "device1",
-    group: "group1",
-    ip: "172.0.0.1",
-    port: 4301,
-    services: [
-      {
-        name: "s1",
-        id: 1,
-      },
-      {
-        name: "s2",
-        id: 2,
-      },
-    ],
-  };
+  describe("when there are 2 devices and bonob is not registered", () => {
+    const device1 : Device = {
+      name: "device1",
+      group: "group1",
+      ip: "172.0.0.1",
+      port: 4301,
+      services: [
+        {
+          name: "s1",
+          id: 1,
+        },
+        {
+          name: "s2",
+          id: 2,
+        },
+      ],
+    };
+  
+    const device2: Device = {
+      name: "device2",
+      group: "group2",
+      ip: "172.0.0.2",
+      port: 4302,
+      services: [
+        {
+          name: "s3",
+          id: 3,
+        },
+        {
+          name: "s4",
+          id: 4,
+        },
+      ],
+    }
 
-  const device2: Device = {
-    name: "device2",
-    group: "group2",
-    ip: "172.0.0.2",
-    port: 4302,
-    services: [
-      {
-        name: "s3",
-        id: 3,
-      },
-      {
-        name: "s4",
-        id: 4,
-      },
-    ],
-  }
-
-
-  describe("when sonos integration is enabled", () => {
     const fakeSonos: Sonos = {
       devices: () =>Promise.resolve([device1, device2]),
     };
@@ -61,7 +60,7 @@ describe("index", () => {
     describe("devices list", () => {
       it("should contain the devices returned from sonos", async () => {
         const res = await request(server).get("/").send();
-
+  
         expect(res.status).toEqual(200);
         expect(res.text).toMatch(
           /device1\s+\(172.0.0.1:4301\)/
@@ -70,10 +69,12 @@ describe("index", () => {
           /device2\s+\(172.0.0.2:4302\)/
         );
       });
-
+    });
+  
+    describe("services", () => {
       it("should contain a list of services returned from sonos", async () => {
         const res = await request(server).get("/").send();
-
+  
         expect(res.status).toEqual(200);
         expect(res.text).toMatch(/Services\s+4/);
         expect(res.text).toMatch(/s1\s+\(1\)/);
@@ -82,5 +83,69 @@ describe("index", () => {
         expect(res.text).toMatch(/s4\s+\(4\)/);
       });
     });
+
+    describe("registration status", () => {
+      it("should be not-registered", async () => {
+        const res = await request(server).get("/").send();
+        expect(res.status).toEqual(200);
+        expect(res.text).toMatch(
+          /Not registered/
+        );
+      })
+    });
+  });
+
+  describe("when there are 2 devices and bonob is registered", () => {
+    const device1 : Device = {
+      name: "device1",
+      group: "group1",
+      ip: "172.0.0.1",
+      port: 4301,
+      services: [
+        {
+          name: "s1",
+          id: 1,
+        },
+        {
+          name: "s2",
+          id: 2,
+        },
+        BONOB_SERVICE
+      ],
+    };
+  
+    const device2: Device = {
+      name: "device2",
+      group: "group2",
+      ip: "172.0.0.2",
+      port: 4302,
+      services: [
+        {
+          name: "s1",
+          id: 1,
+        },
+        {
+          name: "s4",
+          id: 4,
+        },
+        BONOB_SERVICE
+      ],
+    }
+
+    const fakeSonos: Sonos = {
+      devices: () =>Promise.resolve([device1, device2]),
+    };
+
+    const server = makeServer(fakeSonos);
+
+    describe("registration status", () => {
+      it("should be registered", async () => {
+        const res = await request(server).get("/").send();
+        expect(res.status).toEqual(200);
+        expect(res.text).toMatch(
+          /Registered/
+        );
+      })
+    });
   });
 });
diff --git a/tests/sonos.test.ts b/tests/sonos.test.ts
index 41da03d..92da265 100644
--- a/tests/sonos.test.ts
+++ b/tests/sonos.test.ts
@@ -1,12 +1,19 @@
 import { SonosManager, SonosDevice } from "@svrooij/sonos";
 import { MusicServicesService } from "@svrooij/sonos/lib/services";
-import { shuffle } from 'underscore';
+import { shuffle } from "underscore";
 
 jest.mock("@svrooij/sonos");
 
 import { AMAZON_MUSIC, APPLE_MUSIC, AUDIBLE } from "./music_services";
 
-import sonos, { SONOS_DISABLED, asDevice, Device, servicesFrom } from "../src/sonos";
+import sonos, {
+  SONOS_DISABLED,
+  asDevice,
+  Device,
+  servicesFrom,
+  registrationStatus,
+  BONOB_SERVICE,
+} from "../src/sonos";
 
 const mockSonosManagerConstructor = <jest.Mock<SonosManager>>SonosManager;
 
@@ -15,6 +22,28 @@ describe("sonos", () => {
     mockSonosManagerConstructor.mockClear();
   });
 
+  describe("bonobRegistrationStatus", () => {
+    describe("when bonob is registered", () => {
+      it("should return 'registered'", () => {
+        expect(
+          registrationStatus([
+            { id: 1, name: "not bonob" },
+            BONOB_SERVICE,
+            { id: 2, name: "also not bonob" },
+          ])
+        ).toBe("registered");
+      });
+    });
+
+    describe("when bonob is not registered", () => {
+      it("should return not-registered", () => {
+        expect(registrationStatus([{ id: 1, name: "not bonob" }])).toBe(
+          "not-registered"
+        );
+      });
+    });
+  });
+
   describe("asDevice", () => {
     it("should convert", async () => {
       const musicServicesService = {
@@ -71,12 +100,19 @@ describe("sonos", () => {
       const service4 = { id: 4, name: "A" };
 
       const d1 = someDevice({ services: shuffle([service1, service2]) });
-      const d2 = someDevice({ services: shuffle([service1, service2, service3]) });
+      const d2 = someDevice({
+        services: shuffle([service1, service2, service3]),
+      });
       const d3 = someDevice({ services: shuffle([service4]) });
 
       const devices: Device[] = [d1, d2, d3];
 
-      expect(servicesFrom(devices)).toEqual([service4, service2, service3, service1])
+      expect(servicesFrom(devices)).toEqual([
+        service4,
+        service2,
+        service3,
+        service1,
+      ]);
     });
   });
 
diff --git a/web/views/index.eta b/web/views/index.eta
index b5916b2..be8eba3 100644
--- a/web/views/index.eta
+++ b/web/views/index.eta
@@ -2,6 +2,11 @@
 
 <div id="content">
   <h1>bonob</h1>
+  <% if(it.registration == "registered") { %>
+  <h2 class="registered">Registered</h2>
+  <% } else if(it.registration == "not-registered") {  %>
+  <h2 class="not-registered">Not registered</h2>
+  <% } %>
   <h2>Devices</h2>
   <ul>
     <% it.devices.forEach(function(d){ %>