Let's Debug

Test result for app.home.tilsch.it using http-01

A fatal issue occurred during the DNS lookup process for app.home.tilsch.it/CAA.
DNS response for app.home.tilsch.it/CAA did not have an acceptable response code: SERVFAIL
Debug
A and AAAA records found for this domain
app.home.tilsch.it. 0 IN A 91.11.64.221
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for app.home.tilsch.it is: it
Debug
The current status.io status for Let's Encrypt
Operational

Submitted Mar 17 07:34:47 2019. Sat in queue for 2ms. Completed in 10s. Hide verbose information.