diff --git a/webrtc.html b/webrtc.html
index 8ced8d50..6f426bb8 100644
--- a/webrtc.html
+++ b/webrtc.html
@@ -36,88 +36,106 @@ cannot be blocked by browser plugins like AdBlock, Ghostery, etc.
 
 <p>&nbsp;</p>
 
-<p><a href="https://github.com/diafygi/webrtc-ips">Source code on GitHub</a></p>
+<p>Source Code: <a href="https://github.com/diafygi/webrtc-ips" target="_blank">GitHub</a>
+<br>Script Version: Jul 20, 2015</a></p>
 
-<iframe id="iframe" sandbox="allow-same-origin" style="display: none"></iframe>
-<script>
-//get the IP addresses associated with an account
-function getIPs(callback){
-var ip_dups = {};
-//compatibility for firefox and chrome
-var RTCPeerConnection = window.RTCPeerConnection
-|| window.mozRTCPeerConnection
-|| window.webkitRTCPeerConnection;
-var useWebKit = !!window.webkitRTCPeerConnection;
-//bypass naive webrtc blocking using an iframe
-if(!RTCPeerConnection){
-//NOTE: you need to have an iframe in the page right above the script tag
-//
-//<iframe id="iframe" sandbox="allow-same-origin" style="display: none"></iframe>
-//<script>...getIPs called in here...
-//
-var win = iframe.contentWindow;
-RTCPeerConnection = win.RTCPeerConnection
-|| win.mozRTCPeerConnection
-|| win.webkitRTCPeerConnection;
-useWebKit = !!win.webkitRTCPeerConnection;
-}
-//minimal requirements for data connection
-var mediaConstraints = {
-optional: [{RtpDataChannels: true}]
-};
-//firefox already has a default stun server in about:config
-// media.peerconnection.default_iceservers =
-// [{"url": "stun:stun.services.mozilla.com"}]
-var servers = undefined;
-//add same stun server for chrome
-if(useWebKit)
-servers = {iceServers: [{urls: "stun:stun.services.mozilla.com"}]};
-//construct a new RTCPeerConnection
-var pc = new RTCPeerConnection(servers, mediaConstraints);
-function handleCandidate(candidate){
-//match just the IP address
-var ip_regex = /([0-9]{1,3}(\.[0-9]{1,3}){3})/
-var ip_addr = ip_regex.exec(candidate)[1];
-//remove duplicates
-if(ip_dups[ip_addr] === undefined)
-callback(ip_addr);
-ip_dups[ip_addr] = true;
-}
-//listen for candidate events
-pc.onicecandidate = function(ice){
-//skip non-candidate events
-if(ice.candidate)
-handleCandidate(ice.candidate.candidate);
-};
-//create a bogus data channel
-pc.createDataChannel("");
-//create an offer sdp
-pc.createOffer(function(result){
-//trigger the stun server request
-pc.setLocalDescription(result, function(){}, function(){});
-}, function(){});
-//wait for a while to let everything done
-setTimeout(function(){
-//read candidate info from local description
-var lines = pc.localDescription.sdp.split('\n');
-lines.forEach(function(line){
-if(line.indexOf('a=candidate:') === 0)
-handleCandidate(line);
-});
-}, 1000);
-}
-//insert IP addresses into the page
-getIPs(function(ip){
-var li = document.createElement("li");
-li.textContent = ip;
-//local IPs
-if (ip.match(/^(192\.168\.|169\.254\.|10\.|172\.(1[6-9]|2\d|3[01]))/))
-document.getElementsByTagName("ul")[0].appendChild(li);
-//assume the rest are public IPs
-else
-document.getElementsByTagName("ul")[1].appendChild(li);
-});
-</script>
+        <iframe id="iframe" sandbox="allow-same-origin" style="display: none"></iframe>
+        <script>
+            //get the IP addresses associated with an account
+            function getIPs(callback){
+                var ip_dups = {};
+
+                //compatibility for firefox and chrome
+                var RTCPeerConnection = window.RTCPeerConnection
+                    || window.mozRTCPeerConnection
+                    || window.webkitRTCPeerConnection;
+                var useWebKit = !!window.webkitRTCPeerConnection;
+
+                //bypass naive webrtc blocking using an iframe
+                if(!RTCPeerConnection){
+                    //NOTE: you need to have an iframe in the page right above the script tag
+                    //
+                    //<iframe id="iframe" sandbox="allow-same-origin" style="display: none"></iframe>
+                    //<script>...getIPs called in here...
+                    //
+                    var win = iframe.contentWindow;
+                    RTCPeerConnection = win.RTCPeerConnection
+                        || win.mozRTCPeerConnection
+                        || win.webkitRTCPeerConnection;
+                    useWebKit = !!win.webkitRTCPeerConnection;
+                }
+
+                //minimal requirements for data connection
+                var mediaConstraints = {
+                    optional: [{RtpDataChannels: true}]
+                };
+
+                var servers = {iceServers: [{urls: "stun:stun.services.mozilla.com"}]};
+
+                //construct a new RTCPeerConnection
+                var pc = new RTCPeerConnection(servers, mediaConstraints);
+
+                function handleCandidate(candidate){
+                    //match just the IP address
+                    var ip_regex = /([0-9]{1,3}(\.[0-9]{1,3}){3}|[a-f0-9]{1,4}(:[a-f0-9]{1,4}){7})/
+                    var ip_addr = ip_regex.exec(candidate)[1];
+
+                    //remove duplicates
+                    if(ip_dups[ip_addr] === undefined)
+                        callback(ip_addr);
+
+                    ip_dups[ip_addr] = true;
+                }
+
+                //listen for candidate events
+                pc.onicecandidate = function(ice){
+
+                    //skip non-candidate events
+                    if(ice.candidate)
+                        handleCandidate(ice.candidate.candidate);
+                };
+
+                //create a bogus data channel
+                pc.createDataChannel("");
+
+                //create an offer sdp
+                pc.createOffer(function(result){
+
+                    //trigger the stun server request
+                    pc.setLocalDescription(result, function(){}, function(){});
+
+                }, function(){});
+
+                //wait for a while to let everything done
+                setTimeout(function(){
+                    //read candidate info from local description
+                    var lines = pc.localDescription.sdp.split('\n');
+
+                    lines.forEach(function(line){
+                        if(line.indexOf('a=candidate:') === 0)
+                            handleCandidate(line);
+                    });
+                }, 1000);
+            }
+
+            //insert IP addresses into the page
+            getIPs(function(ip){
+                var li = document.createElement("li");
+                li.textContent = ip;
+
+                //local IPs
+                if (ip.match(/^(192\.168\.|169\.254\.|10\.|172\.(1[6-9]|2\d|3[01]))/))
+                    document.getElementsByTagName("ul")[0].appendChild(li);
+
+                //IPv6 addresses
+                else if (ip.match(/^[a-f0-9]{1,4}(:[a-f0-9]{1,4}){7}$/))
+                    document.getElementsByTagName("ul")[2].appendChild(li);
+
+                //assume the rest are public IPs
+                else
+                    document.getElementsByTagName("ul")[1].appendChild(li);
+            });
+        </script>
 
 </div>
 </body>
\ No newline at end of file