Let's Debug

Test result for id-rsa.pub using http-01

No CAA record on id-rsa.pub (wildcard=false) contains the issuance domain "letsencrypt.org". You must either add an additional record to include "letsencrypt.org" or remove every existing CAA record. A list of the CAA records are provided in the details.
id-rsa.pub. 0 IN CAA 0 issue "amazonaws.com"
Debug
CAA records control authorization for certificate authorities to issue certificates for a domain
id-rsa.pub. 0 IN CAA 0 issue "amazonaws.com"
id-rsa.pub. 0 IN CAA 0 issuewild ";"
Debug
A and AAAA records found for this domain
id-rsa.pub. 0 IN A 52.84.35.73
id-rsa.pub. 0 IN A 52.84.35.91
id-rsa.pub. 0 IN A 52.84.35.123
id-rsa.pub. 0 IN A 52.84.35.7
id-rsa.pub. 0 IN AAAA 2600:9000:201c:5a00:7:a0a8:780:93a1
id-rsa.pub. 0 IN AAAA 2600:9000:201c:1000:7:a0a8:780:93a1
id-rsa.pub. 0 IN AAAA 2600:9000:201c:b000:7:a0a8:780:93a1
id-rsa.pub. 0 IN AAAA 2600:9000:201c:9800:7:a0a8:780:93a1
id-rsa.pub. 0 IN AAAA 2600:9000:201c:f400:7:a0a8:780:93a1
id-rsa.pub. 0 IN AAAA 2600:9000:201c:1600:7:a0a8:780:93a1
id-rsa.pub. 0 IN AAAA 2600:9000:201c:ca00:7:a0a8:780:93a1
id-rsa.pub. 0 IN AAAA 2600:9000:201c:ba00:7:a0a8:780:93a1
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for id-rsa.pub is: pub
Debug
The current status.io status for Let's Encrypt
Operational

Submitted May 12 22:40:30 2018. Sat in queue for 3ms. Completed in 0s. Hide verbose information.