interface Deno.CaaRecord
If [`Deno.resolveDns`](../././~/Deno.resolveDns) is called with `"CAA"` record type
specified, it will resolve with an array of objects with this interface.
critical: boolean
If `true`, indicates that the corresponding property tag **must** be
understood if the semantics of the CAA record are to be correctly
interpreted by an issuer.
Issuers **must not** issue certificates for a domain if the relevant CAA
Resource Record set contains unknown property tags that have `critical`
set.
tag: string
An string that represents the identifier of the property represented by
the record.
value: string
The value associated with the tag.