I open my browser and go to google home page, and it does not open. Does it mean my internet is down? Not always.
Sometimes your ISP’s gateway works just fine, but their DNS servers are down, making you think that your internet is down. To understand more about this, let us see what DNS is.
Domain Name Server In the beginning, when there were only a handful of servers in the whole internet, everyone probably simply remembered the IP address of the server they wanted to access.