DNS Tools

A Record Lookup

A record holds the domain to IP address information, A records hold IPv4 address.

AAAA Record Lookup

AAAA record holds the domain to IPv6 address information.

PTR Record Lookup

PTR record holds the revers IP to domain information. Its used usually to validate the ownership of the domain to the IP address.

Start of Authority, sotre the important information about the domain like the email address of the administrator, when the domain was last updated, and how long the server should wait between refreshes. its required for all domain to have an SOA record in order to conform to IETF standards.

NS Record Lookup

NS stands for (nameserver) and the nameserver record indicates which DNS server is authoritative for that domain (i.e. which server contains the actual DNS records). The domain usually has multiple NS records. online users will not be able to communicate with the domain without having an active nameserver.

MX Record Lookup

'Mail eXchange' (MX) is used to share the email server information. it also indicates how email messages should be routed according to the SMTP protocol. the MX record must always point to another domain. The 'priority' numbers before the domains for these MX records indicate preference

TXT Record Lookup

Text records allows the domain administrator to use/share text information on DNS. The TXT record was originally intended as a place for human-readable notes. However, now it is being used to put some machine-readable data. The single domain can have many TXT records.

SRV Record Lookup

Service record can be used to specify a host and port for specific services like instant messaging, it can also includes a port at that IP address.