BT DNS Servers
Interpreted as: What are the BT DNS Servers?
It is important to make sure that you're using the correct DNS server for your connection to the Internet, whatsmydns.net provides a DNS server database so that you can quickly and easily locate the correct DNS servers that you should be using for your connection. Having the right DNS servers means that you should have the fastest possible lookups for when you're visiting various websites online.
Check out the BT DNS Servers page for the most up to date servers.