DNSDataView is a free utility that quickly retrieves DNS records (MX, NS, A, SOA) from specified domains to test and troubleshoot DNS servers.
You have the option to use either the default DNS server of your internet connection or any other DNS server of your choosing. After DNSDataView retrieves the DNS records for the desired domains, you can then save them into text/XML/HTML/CSV files for later analysis.
Simple Port Forwarding works with webpages and not directly with your router making it a safe program to use. Supports 52 Languages and 2600+ routers. Portable version also available.