diff --git a/.eslintrc.js b/.eslintrc.js
index 7dd774c4..6630ad49 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -21,6 +21,7 @@ module.exports = {
         "blessing": true,
         "debounce": false,
         "showModal": false,
+        "docCookies": false,
         "showAjaxError": false,
         "getQueryString": false,
         "TexturePreview": false
diff --git a/resources/assets/src/js/admin/common.js b/resources/assets/src/js/admin/common.js
index 098b7dc3..df2975b0 100644
--- a/resources/assets/src/js/admin/common.js
+++ b/resources/assets/src/js/admin/common.js
@@ -22,3 +22,30 @@ $(document).ready(() => {
         $.pluginsTable = initPluginsTable();
     }
 });
+
+function sendFeedback() {
+    if (docCookies.getItem('feedback_sent') !== null)
+        return;
+
+    fetch({
+        url: 'https://work.prinzeugen.net/statistics/feedback',
+        type: 'POST',
+        dataType: 'json',
+        data: {
+            site_name: blessing.site_name,
+            site_url: blessing.base_url,
+            version: blessing.version
+        }
+    }).then(({ errno }) => {
+        if (errno === 0) {
+            // Will be expired when current session ends
+            docCookies.setItem('feedback_sent', Date.now());
+
+            console.log('Feedback sent. Thank you!');
+        }
+    });
+}
+
+if (typeof require !== 'undefined' && typeof module !== 'undefined') {
+    module.exports = sendFeedback;
+}
diff --git a/resources/assets/src/js/common/cookie.js b/resources/assets/src/js/common/cookie.js
new file mode 100644
index 00000000..15600f30
--- /dev/null
+++ b/resources/assets/src/js/common/cookie.js
@@ -0,0 +1,64 @@
+/* eslint-disable */
+
+/*\
+|*|
+|*|  :: cookies.js ::
+|*|
+|*|  A complete cookies reader/writer framework with full unicode support.
+|*|
+|*|  https://developer.mozilla.org/en-US/docs/DOM/document.cookie
+|*|
+|*|  This framework is released under the GNU Public License, version 3 or later.
+|*|  http://www.gnu.org/licenses/gpl-3.0-standalone.html
+|*|
+|*|  Syntaxes:
+|*|
+|*|  * docCookies.setItem(name, value[, end[, path[, domain[, secure]]]])
+|*|  * docCookies.getItem(name)
+|*|  * docCookies.removeItem(name[, path], domain)
+|*|  * docCookies.hasItem(name)
+|*|  * docCookies.keys()
+|*|
+\*/
+
+var docCookies = {
+  getItem: function (sKey) {
+    return decodeURIComponent(document.cookie.replace(new RegExp("(?:(?:^|.*;)\\s*" + encodeURIComponent(sKey).replace(/[\-\.\+\*]/g, "\\$&") + "\\s*\\=\\s*([^;]*).*$)|^.*$"), "$1")) || null;
+  },
+  setItem: function (sKey, sValue, vEnd, sPath, sDomain, bSecure) {
+    if (!sKey || /^(?:expires|max\-age|path|domain|secure)$/i.test(sKey)) { return false; }
+    var sExpires = "";
+    if (vEnd) {
+      switch (vEnd.constructor) {
+        case Number:
+          sExpires = vEnd === Infinity ? "; expires=Fri, 31 Dec 9999 23:59:59 GMT" : "; max-age=" + vEnd;
+          break;
+        case String:
+          sExpires = "; expires=" + vEnd;
+          break;
+        case Date:
+          sExpires = "; expires=" + vEnd.toUTCString();
+          break;
+      }
+    }
+    document.cookie = encodeURIComponent(sKey) + "=" + encodeURIComponent(sValue) + sExpires + (sDomain ? "; domain=" + sDomain : "") + (sPath ? "; path=" + sPath : "") + (bSecure ? "; secure" : "");
+    return true;
+  },
+  removeItem: function (sKey, sPath, sDomain) {
+    if (!sKey || !this.hasItem(sKey)) { return false; }
+    document.cookie = encodeURIComponent(sKey) + "=; expires=Thu, 01 Jan 1970 00:00:00 GMT" + ( sDomain ? "; domain=" + sDomain : "") + ( sPath ? "; path=" + sPath : "");
+    return true;
+  },
+  hasItem: function (sKey) {
+    return (new RegExp("(?:^|;\\s*)" + encodeURIComponent(sKey).replace(/[\-\.\+\*]/g, "\\$&") + "\\s*\\=")).test(document.cookie);
+  },
+  keys: /* optional method: you can safely remove it! */ function () {
+    var aKeys = document.cookie.replace(/((?:^|\s*;)[^\=]+)(?=;|$)|^\s*|\s*(?:\=[^;]*)?(?:\1|$)/g, "").split(/\s*(?:\=[^;]*)?;\s*/);
+    for (var nIdx = 0; nIdx < aKeys.length; nIdx++) { aKeys[nIdx] = decodeURIComponent(aKeys[nIdx]); }
+    return aKeys;
+  }
+};
+
+if (typeof require !== 'undefined' && typeof module !== 'undefined') {
+    module.exports = docCookies;
+}
diff --git a/resources/views/admin/master.tpl b/resources/views/admin/master.tpl
index a540ee12..0a312362 100644
--- a/resources/views/admin/master.tpl
+++ b/resources/views/admin/master.tpl
@@ -96,19 +96,7 @@
     @endif
 
     @if (option('allow_sending_statistics'))
-    <script>
-        blessing.site_url = blessing.base_url;
-
-        $.ajax({
-            url: 'https://work.prinzeugen.net/statistics/feedback',
-            type: 'POST',
-            dataType: 'json',
-            data: blessing
-        }).done(function() {
-            console.log('Feedback sent. Thank you!');
-        });
-
-    </script>
+    <script>sendFeedback();</script>
     @endif
 
     @yield('script')