diff --git a/inwx_update_domain.py b/inwx_update_domain.py
new file mode 100644
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+++ b/inwx_update_domain.py
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+#!/usr/bin/env python3
+
+# Script to update a domain via python-script
+
+# 2025-12-31 doctore74 <doc(at)snowheaven.de>
+
+# https://github.com/inwx/python-client/
+# https://github.com/inwx/python-client/issues/9
+
+# How to use
+# 1. clone the repo - git clone https://github.com/inwx/python-client/
+# 2. copy this file to the root directory of the cloned repo
+# 3. chmod +x inwx_update_domain.py
+# 4. enter INWX credentials, your domain and the dns entry id which you want to update
+# 5. start file ./inwx_update_domain.py
+#
+# - you can copy the file to update several domains
+# - you can use this file as cronjob
+#
+# Cronjob example
+# */5 * * * * /root/python-client/inwx_update_domain.py > /var/log/inwx_update_domain.log 2>&1
+# Example for Checkmk monitoring
+# */5 * * * * mk-job inwx_update_domain /root/python-client/inwx_update_domain.py > /var/log/inwx_update_domain.log 2>&1
+
+from INWX.Domrobot import ApiClient, ApiType
+import urllib.request
+
+# INWX credentials
+username = 'YOUR_USERNAME'
+password = 'YOUR_PASSWORD'
+domain = 'YOUR_DOMAIN'
+
+# Find the SAVE button for the dns entry in your INWX website and copy the ID (xxxxxxxxx)
+# javascript:saveRecord("XXXXXXXXXX","/en/nameserver2/updaterecordajax/id/1689759058","DNS_REC")
+DNS_RECORD_ID = 1689759058  # your DNS record ID
+
+def get_public_ip():
+    # with urllib.request.urlopen("https://api.ipify.org") as response: # IPv4 only
+    with urllib.request.urlopen("https://api64.ipify.org/") as response:
+        return response.read().decode().strip()
+
+
+def main():
+    public_ip = get_public_ip()
+    print(f"Detected public IP: {public_ip}")
+
+    api_client = ApiClient(
+        api_url=ApiClient.API_LIVE_URL,
+        api_type=ApiType.JSON_RPC,
+        debug_mode=True
+    )
+
+    login_result = api_client.login(username, password)
+
+    if login_result['code'] != 1000:
+        raise Exception(
+            f"API login error. Code: {login_result['code']}  Message: {login_result['msg']}"
+        )
+
+    method_params = {
+        'id': DNS_RECORD_ID,
+        'content': public_ip,   # set your public ip
+        # 'content': '1.2.3.4', # set a specific ip
+    }
+
+    update_result = api_client.call_api(
+        api_method='nameserver.updateRecord',
+        method_params=method_params
+    )
+
+    if update_result['code'] == 1000:
+        print('Record updated successfully')
+    else:
+        raise Exception(
+            f"API error while updating the record. "
+            f"Code: {update_result['code']}  Message: {update_result['msg']}"
+        )
+
+    api_client.logout()
+
+
+if __name__ == "__main__":
+    main()