bulk_query              Vectorized query, returning only answers in a
                        data frame
gdns                    Tools to Work with Google DNS Over HTTPS API
has_spf                 Test for whether a DNS TXT record is an SPF
                        record
is_soft_fail            SPF "all" type test
query                   Perform DNS over HTTPS queries using Google
resource_record_tbl     An overview of resource records (RRs)
                        permissible in zone files of the Domain Name
                        System (DNS)
spf_ipv4s               SPF field extraction functions
split_spf               Split out all SPF records in a domain's TXT
                        record
