diff --git a/app/renderer/js/main.js b/app/renderer/js/main.js
index 8607a21d..a0102d09 100644
--- a/app/renderer/js/main.js
+++ b/app/renderer/js/main.js
@@ -6,10 +6,10 @@
 		    const data = db.getData("/");
 
 		    if (data["domain"] !== undefined) {
-		        window.location.href = 'https://' + data["domain"];
+		        window.location.href = data["domain"];
 
 		    } else {
-		    	
+
 		        dialogs.prompt('Enter the URL for your Zulip server', function(url) {
 
 		        	let newurl = 'https://' + url.replace(/^https?:\/\//,'')
diff --git a/app/renderer/js/pref.js b/app/renderer/js/pref.js
index d9a6763d..f5343b3d 100644
--- a/app/renderer/js/pref.js
+++ b/app/renderer/js/pref.js
@@ -8,6 +8,7 @@ document.getElementById('close-button').addEventListener('click', function (e) {
 
 function addDomain() {
 
+        const request = require('request');
         const ipcRenderer = require('electron').ipcRenderer;
         const JsonDB = require('node-json-db');
         const db = new JsonDB('domain', true, true);
@@ -16,8 +17,18 @@ function addDomain() {
         newDomain = newDomain.replace(/^https?:\/\//,'')
         
         const domain = 'https://' + newDomain;
+        const checkDomain = domain + '/static/audio/zulip.ogg';
+
+        request(checkDomain, function (error, response, body) {
+            if (!error && response.statusCode !== 404) {
+                document.getElementById('urladded').innerHTML = newDomain + '  Added';
+                db.push('/domain', newDomain);
+                ipcRenderer.send('new-domain', domain);
+            }
+            else{
+                document.getElementById('urladded').innerHTML = "Not a vaild Zulip server";
+            }
+        })
+
 
-        document.getElementById('urladded').innerHTML = newDomain + '  Added';
-        db.push('/domain', newDomain);
-        ipcRenderer.send('new-domain', domain);
 }