Type Value Definition Description
A record A The standard address record. The resource record (RR) value can be empty. In this case, @ is used as the RR value. The domain name cannot contain underscores (_). The record value is an IPv4 address.
NS record NS The standard name server (NS) record. The RR value cannot be empty. The domain name can contain underscores (_). Wildcard DNS is not supported. The record value is of the type specified by NameType.
MX record MX The standard mail exchanger (MX) record. The RR value can be empty. In this case, @ is used as the RR value. The domain name cannot contain underscores (_). The record value is of the type specified by NameType and cannot be an IP address. The priority can be 1 to 10. A smaller value indicates a higher priority.
TXT record TXT The standard text record. The domain name can contain letters, digits, hyphens (-), and underscores (_). The RR value can be empty. In this case, @ is used as the RR value. Wildcard DNS is not supported. The record value is a string of less than 512 characters in length. The record value can contain uppercase and lowercase letters, digits, spaces, hyphens (-), tildes (~), equal signs (=), colons (:), semicolons (;), forward slashes (/), and periods (.).@+^!*
CNAME record CNAME The standard canonical name (CNAME) record. The domain name can contain letters, digits, hyphens (-), and underscores (_). The RR value cannot be empty. The record value is of the type specified by NameType and cannot be an IP address.
SRV record SRV The service name can contain underscores (_) and periods (.).The RR value can be empty. In this case, @ is used as the RR value. Wildcard DNS is not supported. priority: the priority that ranges from 0 to 65535. weight: the weight that ranges from 0 to 65535. port: the port number that is used to provide the service and ranges from 0 to 65535. target: the service address that is of the type specified by NameType. The service address must exist. References: http://en.wikipedia.org/wiki/SRV_record http://www.rfc-editor.org/rfc/rfc2782.txt.
AAAA record AAAA The standard IPv6 address record. The RR value can be empty. In this case, @ is used as the RR value. The domain name cannot contain underscores (_). The record value is an IPv6 address.
CAA record CAA The standard Certification Authority Authorization (CAA) record. The RR value can be empty. In this case, @ is used as the RR value. The domain name cannot contain underscores (_). The record value is in the format of [flag] [tag] [value]. The record value consists of a flags byte and a property that is a tag-value pair. Example: @ 0 issue "symantec.com" or @ 0 iodef "mailto:admin@aliyun.com"
Explicit URL forwarding REDIRECT_URL The standard explicit URL record. The RR value can be empty. In this case, @ is used as the RR value. The record value is of the type specified by NameType or a URL that is case-sensitive. The record value can be up to 500 characters in length. The domain name is required and not case-sensitive. Example: a.com. The protocol is optional. Examples: http and https. Default value: http. The port number is optional. Example: 81. Default value: 80. The path is optional and case-sensitive. Example: /path/to/. Default value: /. The file name is optional and case-sensitive. Example: file.php. Default value: none. The parameters are optional and case-sensitive. Example: ?user=my***. Default value: none.
Implicit URL forwarding FORWARD_URL The standard implicit URL record. The RR value can be empty. In this case, @ is used as the RR value. The record value is of the type specified by NameType or a URL that is case-sensitive. The record value can be up to 500 characters in length. The domain name is required and not case-sensitive. Example: a.com. The protocol is optional. Examples: http and https. Default value: http. The port number is optional. Example: 81. Default value: 80. The path is optional and case-sensitive. Example: /path/to/. Default value: /. The file name is optional and case-sensitive. Example: file.php. Default value: none. The parameters are optional and case-sensitive. Example: ?user=my***. Default value: none.