DNS servers

A DNS server or names server is a computer connected to the Internet. It contains information about the services related to a domain name and answers any queries about this information. For example, it translates a domain name into an IP address to enable access to a website/s and/or email inboxes linked to a domain name.

DNSSEC

DNSSEC (Domain Name System Security Extensions) technology authenticates DNS records using cryptographic keys to ensure that each domain fits perfectly into a trusted chain within the tree of the Internet-based naming system.

IDN

An internationalized domain name, or IDN, uses characters beyond the standard ASCII character set (a-Z, 0-9), offering a wider range of registration and communication options. 

Names servers

A DNS server or names server is a computer connected to the Internet. It contains information about the services related to a domain name and answers any queries about this information. For example, it translates a domain name into an IP address to enable access to a website/s and/or email inboxes linked to a domain name.

WHOIS

WHOIS is a service to look up domain name registration data for a given zone. It includes essential information for contacting the owner of a name in case of technical or other problems.