DNS Check: Definition
DNS (domain name service) is widely used to change website names like www.examplecompany.com into numeric IP addresses, which is certainly how data reaches the precise destination on the World-wide-web. Without DNS, users will have to have to memorize 12 numeric digit IP addresses as a way to reach the correct website.
To ensure DNS to the office, the web site owner must setup DNS on his own server or use his Internet service provider’s DNS servers. Requests to the IP address of the website are routed to the DNS server. If the DNS servers are down, users can’t reach the website anymore. If the DNS servers provide the wrong IP address, users will be unable to reach the website. It is of importance to DNS servers to be up constantly. If a DNS check doesn’t work, the website won’t have any users.
