diff --git a/inc/Credentials.h b/inc/Credentials.h
new file mode 100644
index 0000000..1e82694
--- /dev/null
+++ b/inc/Credentials.h
@@ -0,0 +1,32 @@
+//
+// Created by lukas on 11.02.20.
+//
+
+#pragma once
+
+
+#include <string>
+
+class Credentials {
+public:
+    static const std::string dynuapikey;
+
+    static const std::string domainid; //id of the dynu domain
+    static const std::string domainname;
+
+    static const std::string telegramApiKey;
+    static const std::string chatId;
+
+    static bool checkCredentialValidity();
+};
+
+const std::string Credentials::dynuapikey = "";
+const std::string Credentials::domainid = ""; //id of the dynu domain
+const std::string Credentials::domainname = "";
+
+static const std::string Credentials::telegramApiKey = "";
+static const std::string Credentials::chatId = "";
+
+bool Credentials::checkCredentialValidity() {
+    return !(dynuapikey.empty() || domainid.empty() || domainname.empty());
+}
diff --git a/inc/api/DynuAPI.h b/inc/api/DynuAPI.h
index ac2df2d..c78148d 100644
--- a/inc/api/DynuAPI.h
+++ b/inc/api/DynuAPI.h
@@ -4,7 +4,6 @@
 
 #pragma once
 
-
 #include "API.h"
 
 class DynuAPI : API{
@@ -15,9 +14,17 @@ public:
      * @return request status
      */
     int refreshIp(std::string ip);
-private:
-    const std::string dynuapikey = "88vNpMfDhMM2YYDNfWR1DNYfRX9W6fYg";
 
-    const std::string domainid = "8506047"; //id of the dynu domain
-    const std::string domainname = "luki.dynu.net";
+    /**
+     * init Telegram api with apikey and chatid
+     * @param dynuApiKey Dynu Api key
+     * @param domainId ID of domain received by Dynu
+     * @param domainName domainname to refresh
+     */
+    void init(std::string dynuApiKey, std::string domainId, std::string domainName);
+private:
+    std::string dynuapikey;
+
+    std::string domainid; //id of the dynu domain
+    std::string domainname;
 };
diff --git a/src/IPRefresher.cpp b/src/IPRefresher.cpp
index 088af45..2e2b32b 100644
--- a/src/IPRefresher.cpp
+++ b/src/IPRefresher.cpp
@@ -14,6 +14,7 @@
 #include <Logger.h>
 
 #include <IPRefresher.h>
+#include <Credentials.h>
 
 void IPRefresher::checkIPAdress(bool force) {
     FileLogger logger;
@@ -36,10 +37,11 @@ void IPRefresher::checkIPAdress(bool force) {
             Logger::message("ip changed! -- from :" + oldip + "to: " + ip);
 
             DynuAPI dynu;
+            dynu.init(Credentials::dynuapikey,Credentials::domainid,Credentials::domainname);
 
             if (dynu.refreshIp(ip)) {
                 TelegramAPI tele;
-                tele.init("717213769:AAHan1nSXhUsxLJAN1Dv8Oc0z8wqwDdYPn4", "618154204");
+                tele.init(Credentials::telegramApiKey, Credentials::chatId);
                 tele.sendMessage(oldip + " moved to " + ip);
             } else {
                 //error
diff --git a/src/api/DynuAPI.cpp b/src/api/DynuAPI.cpp
index b21a450..89c5aff 100644
--- a/src/api/DynuAPI.cpp
+++ b/src/api/DynuAPI.cpp
@@ -25,3 +25,9 @@ int DynuAPI::refreshIp(std:: string ip) {
         return 1;
     }
 }
+
+void DynuAPI::init(std::string dynuApiKey, std::string domainId, std::string domainName) {
+    this->dynuapikey=dynuApiKey;
+    this->domainid=domainId;
+    this->domainname=domainName;
+}
diff --git a/src/main.cpp b/src/main.cpp
index d3a9577..2d3cd3e 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2,8 +2,10 @@
 #include <IPRefresher.h>
 #include <Version.h>
 #include <Logger.h>
+#include <Credentials.h>
 
 int main(int argc, char *argv[]) {
+    if(!Credentials::checkCredentialValidity()) return -1;
     if (argc > 1) {
         std::string firstarg(argv[1]);
         if (firstarg == "-h" || firstarg == "--help") {