Dns Propagation

Dns propagation means that the new DNS has been communicated to each of the backbones of the Internet and that each backbone has in turn re-mapped its routes to the domain's new DNS location. (DNS = domain name server.) This DNS information does not travel to each of the Internet backbones in a straight line. It travels much like the mapped routes for any given address within the streets, avenues and boulevards included in a map of a country - in a multitude of directions and connecting paths to its states, counties, cities, communities, etc.

Each backbone has to re-map the new DNS and pass it along the routes to be taken through it to the new DNS. This routing information is necessary in order for anyone's computer connected to the Internet to traverse the Internet to a particular domain's site. (Said computers are generally connected to the Internet via an ISP which is another whole topic and has impact on what particular backbone and route your computer will take to a particular Internet location. But I won't get into that aspect of the Internet for now, and not at all if it remains unnecessary to the purpose of this particular article.)

Each backbone must pass the new DNS information to all the other backbones to which it is connected, in order that the connecting backbones can update their mapping and they, in turn, must pass along the new DNS to the backbones connected to them. This process continues until each and every backbone in the Internet has received the new DNS and has re-mapped the route to the domain's new DNS.

Regards,
Sagar.