When configuring alerts specific to the DNS Test type, there is a Record Type option which provides the ability to alert against various aspects of the response received, including:
- A
- A or AAAA
- AAAA
- CNAME
- HTTPS
- NS
- Other
- SVCB

Select the record type that you want to alert against, input the regex to match, and select whether you want to be alerted when it is Equal or Not Equal to the specified value.