diff --git a/README.md b/README.md
index 61e3017..f0830de 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,9 @@ This is the Docker version of LibreSpeed.
 
 See the included `doc.md` or the wiki for instructions on how to use it.
 
+## Go backend
+A Go implementation is available in the `go` branch, maintained by [Maddie Zhan](https://github.com/maddie).
+
 ## Donate
 [![Donate with Liberapay](https://liberapay.com/assets/widgets/donate.svg)](https://liberapay.com/fdossena/donate)  
 [Donate with PayPal](https://www.paypal.me/sineisochronic)  
diff --git a/doc.md b/doc.md
index caf5953..2fa866c 100644
--- a/doc.md
+++ b/doc.md
@@ -141,18 +141,6 @@ __Advanced parameters:__ (Seriously, don't change these unless you know what you
     * `1514 / 1440`: TCP+IPv6+ETH, ignoring HTTP overhead
     * `1`: ignore overheads. This measures the speed at which you actually download and upload files rather than the raw connection speed
 
-### Multiple Points of Test
-If you want to use more than one test server, this is the time to add all your test points and select the best one. Skip this part if you don't want to use this feature.
-
-The best way to do this is to declare an array with all your servers, and give it to the speedtest:
-```js
-var SPEEDTEST_SERVERS=[
-	server1,
-	server2,
-	...
-];
-s.addTestPoints(SPEEDTEST_SERVERS);
-
 ## Multiple Points of Test
 For multiple servers, you need to set up 1+ LibreSpeed backends, and 1 LibreSpeed frontend.
 
@@ -173,7 +161,7 @@ docker run -e MODE=backend -p 80:80 -it adolfintel/speedtest
 ### Frontend mode
 In frontend mode, LibreSpeed serves clients the Web UI and a list of servers. To do this:
 * Set the `MODE` environment variable to `frontend`
-* Create a servers.json file with your test points. The syntax is the following:
+* Create a `servers.json` file with your test points. The syntax is the following:
     ```
     [
         {
@@ -196,6 +184,11 @@ In frontend mode, LibreSpeed serves clients the Web UI and a list of servers. To
     ]
     ```
     Note: if a server only supports HTTP or HTTPS, specify the protocol in the server field. If it supports both, just use `//`.
+    If you want the test to load this list from an URL instead of a file, just put the URL that you want to be loaded in the file in quotes, like this:
+    ```
+    "//mydomain.com/ServerList.json"
+    ```
+    It doesn't need to be a complete URL, if it's the same domain you can just specify the file name. Note that the same origin policy still applies.
 * Mount this file to `/servers.json` in the container
     
 The test can be accessed on port 80.
diff --git a/docker/frontend.php b/docker/frontend.php
index a5ff850..5c99e5d 100644
--- a/docker/frontend.php
+++ b/docker/frontend.php
@@ -22,29 +22,48 @@ s.setParameter("getIp_ispInfo","false");
 <?php if(getenv("DISTANCE")){ ?>
 s.setParameter("getIp_ispInfo_distance","<?=getenv("DISTANCE") ?>");
 <?php } ?>
-s.addTestPoints(SPEEDTEST_SERVERS); //add list of servers
 
 //SERVER AUTO SELECTION
 function initServers(){
-	s.selectServer(function(server){
-		if(server!=null){ //at least 1 server is available
-			I("loading").className="hidden"; //hide loading message
-			//populate server list for manual selection
-			for(var i=0;i<SPEEDTEST_SERVERS.length;i++){
-				if(SPEEDTEST_SERVERS[i].pingT==-1) continue;
-				var option=document.createElement("option");
-				option.value=i;
-				option.textContent=SPEEDTEST_SERVERS[i].name;
-				if(SPEEDTEST_SERVERS[i]===server) option.selected=true;
-				I("server").appendChild(option);
-			}
-			//show test UI
-			I("testWrapper").className="visible";
-			initUI();
-		}else{ //no servers are available, the test cannot proceed
-			I("message").innerHTML="No servers available";
-		}
-	});
+    var noServersAvailable=function(){
+        I("message").innerHTML="No servers available";
+    }
+    var runServerSelect=function(){
+        s.selectServer(function(server){
+            if(server!=null){ //at least 1 server is available
+                I("loading").className="hidden"; //hide loading message
+                //populate server list for manual selection
+                for(var i=0;i<SPEEDTEST_SERVERS.length;i++){
+                    if(SPEEDTEST_SERVERS[i].pingT==-1) continue;
+                    var option=document.createElement("option");
+                    option.value=i;
+                    option.textContent=SPEEDTEST_SERVERS[i].name;
+                    if(SPEEDTEST_SERVERS[i]===server) option.selected=true;
+                    I("server").appendChild(option);
+                }
+                //show test UI
+                I("testWrapper").className="visible";
+                initUI();
+            }else{ //no servers are available, the test cannot proceed
+                noServersAvailable();
+            }
+        });
+    }
+    if(typeof SPEEDTEST_SERVERS === "string"){
+        //need to fetch list of servers from specified URL
+        s.loadServerList(SPEEDTEST_SERVERS,function(servers){
+            if(servers==null){ //failed to load server list
+                noServersAvailable();
+            }else{ //server list loaded
+                SPEEDTEST_SERVERS=servers;
+                runServerSelect();
+            }
+        });
+    }else{
+        //hardcoded server list
+        s.addTestPoints(SPEEDTEST_SERVERS);
+        runServerSelect();
+    }
 }
 
 var meterBk=/Trident.*rv:(\d+\.\d+)/i.test(navigator.userAgent)?"#EAEAEA":"#80808040";
diff --git a/speedtest.js b/speedtest.js
index 9df90fd..c2f1b2f 100644
--- a/speedtest.js
+++ b/speedtest.js
@@ -49,7 +49,7 @@ function Speedtest() {
   this._settings = {}; //settings for the speedtest worker
   this._state = 0; //0=adding settings, 1=adding servers, 2=server selection done, 3=test running, 4=done
   console.log(
-    "LibreSpeed by Federico Dossena v5.1 - https://github.com/librespeed/speedtest"
+    "LibreSpeed by Federico Dossena v5.2 - https://github.com/librespeed/speedtest"
   );
 }
 
@@ -127,6 +127,40 @@ Speedtest.prototype = {
   addTestPoints: function(list) {
     for (var i = 0; i < list.length; i++) this.addTestPoint(list[i]);
   },
+  /**
+   * Load a JSON server list from URL (multiple points of test)
+   * url: the url where the server list can be fetched. Must be an array with objects containing the following elements:
+   *  {
+   *       "name": "User friendly name",
+   *       "server":"http://yourBackend.com/",   URL to your server. You can specify http:// or https://. If your server supports both, just write // without the protocol
+   *       "dlURL":"garbage.php"   path to garbage.php or its replacement on the server
+   *       "ulURL":"empty.php"   path to empty.php or its replacement on the server
+   *       "pingURL":"empty.php"   path to empty.php or its replacement on the server. This is used to ping the server by this selector
+   *       "getIpURL":"getIP.php"   path to getIP.php or its replacement on the server
+   *   }
+   * result: callback to be called when the list is loaded correctly. An array with the loaded servers will be passed to this function, or null if it failed
+   */
+  loadServerList: function(url,result) {
+    if (this._state == 0) this._state = 1;
+    if (this._state != 1) throw "You can't add a server after server selection";
+    this._settings.mpot = true;
+    var xhr = new XMLHttpRequest();
+    xhr.onload = function(){
+      try{
+        var servers=JSON.parse(xhr.responseText);
+        for(var i=0;i<servers.length;i++){
+          this._checkServerDefinition(servers[i]);
+        }
+        this.addTestPoints(servers);
+        result(servers);
+      }catch(e){
+        result(null);
+      }
+    }.bind(this);
+    xhr.onerror = function(){result(null);}
+    xhr.open("GET",url);
+    xhr.send();
+  },
   /**
    * Returns the selected server (multiple points of test)
    */