If no CAA record is defined, any Certification Authority can issue an SSL certificate for your domain. CAA: The Certification Authority Authorization (CAA) record defines the public policy regarding the issuance of digital certificates for the domain name.SOA: A Start of Authority (SOA) record provides an essential information about the domain.Some Internet protocols such as XMPP and SIP may require SRV records. SRV: A Service (SRV) record indicates which services are offered on port numbers.It allows a reverse DNS lookup, which is also known as rDNS record. PTR: A Pointer (PTR) record, points the IPv4 or IPv6 address of the host.The NS are DNS servers that are authoritative to handle the DNS query for the domain. NS: The Name Server (NS) records define 1 or more name servers that are responsible for publishing DNS records for the domain name.You may use our MX Validator tool to validate your MX DNS records. MX: The Mail Exchange (MX) records define 1 or more mail servers responsible for handling emails for the (sub)domain name.A TXT record may be used to verify domain authority, dnskey, dmarc,dkim, spf and other information. TXT: The TeXT (TXT) record allows an administrator to add arbitrary text in the DNS record.As an example, the www subdomain name is aliased to the main domain name. CNAME: A Canonical Name (CNAME) record is used as an alias of another (sub)domain name.AAAA: An address record that maps a (sub)domain name to a 128-bit IPv6 address.A: An address record that maps a (sub)domain name to a 32-bit IPv4 address.The DNS record types include A, AAAA, CNAME, TXT, MX, NS, PTR, SRV, SOA, CAA, DS, DNSKEY and more. A DNS record mapping a domain name to an IP address or relevant information. DNS records are defined in a zone file, and it contains the instructions on how to handle the DNS requests for a domain name.
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