<\/span><\/h3>\nTXT records are records added to the domain that contains text information for sources outside of a domain. TXT record is a key component of several different email authentication that helps an email server determine if a message is from a trusted source. It provides the ability to associate some text with a host or other name. TXT records can be added to a fully qualified domain name, one domain can have many TXT records.<\/p>\n
Usually, TXT record is used for SPF (Sender Policy Framework) email spam prevention, DKIM (DomainKeys Identified E-mail) and DMARC (Domain-based Message Authentication, Reporting and Conformance) domain ownership verification purposes. TXT records were originally developed to contain human-readable information about a domain or server, now it also contains machine-readable information.<\/p>\n
<\/span>DMARC (Domain-based Message Authentication, Reporting and Conformance)<\/strong><\/span><\/h3>\nDMARC uses DNS to publish information on how an email from a domain should be handled either to quarantine or reject the email. Because it uses DNS, nearly all email systems can decipher how email supposedly sent from your domain should be processed.<\/p>\n
DMARC is a must for every domain owner, it is used to protect your domains against abuse in phishing or spoofing attacks. When a domain owner publishes a DMARC record into their DNS record, it helps to gain insight into who is sending emails on behalf of their domain. This information can be used to get detailed information about the email channel and get control over the email sent on his behalf.<\/p>\n
<\/span>AAAA (quad A Record)<\/strong><\/span><\/h3>\nAn AAAA Record is another type of DNS Record that points a domain or subdomain to an IPv6 address, it matches a domain\/subdomain with an IPv6 address, similar to A records, which do the same for IPv4 addresses.<\/p>\n
<\/span>CAA Record<\/strong><\/span><\/h3>\nCertification Authority Authorization (CAA) is a DNS record, which allows a domain name holder to specify the preferred Certification Authorities (CAs) to issue SSL certificates for a domain. It provides additional confirmation for the Certification Authority (CA) when validating an SSL certificate.<\/p>\n
Certificate Authority Authorization (CAA) is a way to restrict issuance to the CAs you use so you can reduce your risk from security vulnerabilities. Setting up CAA is an easy way to improve your website’s security.<\/p>\n
<\/span>SRV (Service record)<\/strong><\/span><\/h3>\nSRV is used to specify the location hostname and port number of a specific service and how your domain handles that service in the Domain Name System. It is used to establish a connection between a service and a hostname.<\/p>\n
It defines a host of your domain for which a certain service is supported. It is frequently used when configuring some other third-party service.<\/p>\n
<\/span>ALIAS (ANAME record)<\/strong><\/span><\/h3>\nIt is a record type which is used to point one domain name to a hostname instead of an IP address, it can be used in place of CNAME<\/p>\n
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