Let's Debug

Test result for auditblackbox.com using dns-01

A fatal issue occurred during the DNS lookup process for auditblackbox.com/CAA.
DNS response for auditblackbox.com had fatal DNSSEC issues: validation failure <auditblackbox.com. CAA IN>: No DNSKEY record from 13.107.160.1 for key auditblackbox.com. while building chain of trust
An error occurred while attempting to lookup the TXT record on _acme-challenge.auditblackbox.com . Any resolver errors that the Let's Encrypt CA encounters on this record will cause certificate issuance to fail.
DNS response for _acme-challenge.auditblackbox.com had fatal DNSSEC issues: validation failure <_acme-challenge.auditblackbox.com. TXT IN>: No DNSKEY record from 13.107.160.1 for key auditblackbox.com. while building chain of trust

Submitted Jun 15 09:07:18 2018. Sat in queue for 3ms. Completed in 2s. Show verbose information.