Here's a bash one-liner to check all the domains you have: for domain in $(cat list-of-domains.txt); do curl -s -X POST -F "fqdn=$x" https://unboundtest.com/c

Here's a bash one-liner to check all the domains you have: for domain in $(cat list-of-domains.txt); do curl -s -X POST -F "fqdn=$x" https://unboundtest.com/caaproblem/checkhost https://unboundtest.com/caaproblem/checkhost ;done | sed '/is OK./d'