diff --git a/get.php b/get.php
index 0bc3fbb1..be389294 100644
--- a/get.php
+++ b/get.php
@@ -3,7 +3,7 @@
  * @Author: prpr
  * @Date:   2016-02-02 20:56:42
  * @Last Modified by:   prpr
- * @Last Modified time: 2016-02-02 21:33:12
+ * @Last Modified time: 2016-02-03 13:26:30
  */
 
 $dir = dirname(__FILE__);
@@ -12,13 +12,16 @@ require "$dir/config.php";
 
 if (isset($_GET['type']) && isset($_GET['uname'])) {
     $user = new user($_GET['uname']);
-
     if (!$user->is_registered) utils::raise(1, 'Non-existent user.');
 
-    if ($_GET['type'] == "skin") {
-        echo $user->getBinaryTexture('skin');
-    } else if ($_GET['type'] == "cape") {
-        echo $user->getBinaryTexture('cape');
+    $if_modified_since = isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) : null;
+
+    if ($_GET['type'] == "skin" || $_GET['type'] == "cape") {
+        if ($if_modified_since >= $user->getLastModified()) {
+            header('HTTP/1.0 304 Not Modified');
+        } else {
+            echo $user->getBinaryTexture($_GET['type']);
+        }
     } else if ($_GET['type'] == "json") {
         echo $user->getJsonProfile();
     } else {
diff --git a/includes/database.class.php b/includes/database.class.php
index 57f0aea5..a26b7c45 100644
--- a/includes/database.class.php
+++ b/includes/database.class.php
@@ -3,7 +3,7 @@
  * @Author: printempw
  * @Date:   2016-02-02 21:59:06
  * @Last Modified by:   prpr
- * @Last Modified time: 2016-02-03 00:10:17
+ * @Last Modified time: 2016-02-03 12:12:16
  */
 
 class database
@@ -39,7 +39,7 @@ class database
         if (!$this->connection->error) {
             return $result;
         }
-        utils::raise(-1, "Database query error: ", $this->connection->error);
+        utils::raise(-1, "Database query error: ".$this->connection->error);
     }
 
     public function fetchArray($sql) {
@@ -69,7 +69,7 @@ class database
     }
 
     public function update($uname, $key, $value) {
-        return $this->query("UPDATE users SET $key='$value' WHERE username='$uname'");
+        return $this->query("UPDATE users SET `$key`='$value' WHERE username='$uname'");
     }
 
     public function delete($uname) {
diff --git a/includes/user.class.php b/includes/user.class.php
index ecbb0277..8678d44c 100644
--- a/includes/user.class.php
+++ b/includes/user.class.php
@@ -3,7 +3,7 @@
  * @Author: printempw
  * @Date:   2016-01-16 23:01:33
  * @Last Modified by:   prpr
- * @Last Modified time: 2016-02-02 23:41:37
+ * @Last Modified time: 2016-02-03 13:25:55
  */
 
 class user
@@ -73,6 +73,7 @@ class user
         $filename = "./textures/".$this->getTexture($type);
         if (file_exists($filename)) {
             header('Content-Type: image/png');
+            header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $this->getLastModified()).' GMT');
             $data = fread(fopen($filename, 'r'), filesize($filename));
             return $data;
         } else {
@@ -87,10 +88,12 @@ class user
             // remove the original texture first
             if ($this->getTexture('skin') != "")
                 utils::remove("./textures/".$this->getTexture('skin'));
+            $this->updateLastModified();
             return $this->db->update($this->uname, 'skin_hash', $hash);
         } else if ($type == "cape") {
             if ($this->getTexture('cape') != "")
                 utils::remove("./textures/".$this->getTexture('cape'));
+            $this->updateLastModified();
             return $this->db->update($this->uname, 'cape_hash', $hash);
         }
         return false;
@@ -107,10 +110,9 @@ class user
     public function getJsonProfile() {
         header('Content-type: application/json');
         if ($this->is_registered) {
-            $json['player_name'] = $this->uname;
             $preference = $this->getPreference();
-            $json['model_preference'] = [$preference];
-            $json['skins'][$preference] = $this->getTexture('skin');
+            $json['model'] = $preference;
+            $json['skin'] = $this->getTexture('skin');
             $json['cape'] = $this->getTexture('cape');
         } else {
             $json['errno'] = 1;
@@ -119,4 +121,17 @@ class user
         return json_encode($json);
     }
 
+    public function updateLastModified() {
+        // http://stackoverflow.com/questions/2215354/php-date-format-when-inserting-into-datetime-in-mysql
+        return $this->db->update($this->uname, 'last_modified', date("Y-m-d H:i:s"));
+    }
+
+    /**
+     * Get last modified time
+     * @return timestamp
+     */
+    public function getLastModified() {
+        return strtotime($this->db->select('username', $this->uname)['last_modified']);
+    }
+
 }
diff --git a/textures/aed8c3fc67aae4906b72fa74c27e15866c89752f0838f6b2a1c44bb4d59cec1e b/textures/aed8c3fc67aae4906b72fa74c27e15866c89752f0838f6b2a1c44bb4d59cec1e
deleted file mode 100644
index ba732216..00000000
Binary files a/textures/aed8c3fc67aae4906b72fa74c27e15866c89752f0838f6b2a1c44bb4d59cec1e and /dev/null differ