Let's Debug

Test result for cdkauffmannnextcloud.duckdns.org using http-01

Debug
Requests made to the domain
Request to: cdkauffmannnextcloud.duckdns.org/206.146.67.4, Result: [Address Type=IPv4,Server=micro_httpd,HTTP Status=404], Issue:
Trace:
@0ms: Making a request to http://cdkauffmannnextcloud.duckdns.org/.well-known/acme-challenge/letsdebug-test (using initial IP 206.146.67.4)
@0ms: Dialing 206.146.67.4
@83ms: Server response: HTTP 404 Not Found

Debug
A and AAAA records found for this domain
cdkauffmannnextcloud.duckdns.org. 0 IN A 206.146.67.4
Challenge update failures for cdkauffmannnextcloud.duckdns.org in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/15927879
acme: error code 403 "urn:ietf:params:acme:error:unauthorized": Invalid response from http://cdkauffmannnextcloud.duckdns.org/.well-known/acme-challenge/l9rpjBx7QmYcjzfkxYujOQlzrD5RmjkYXgbS7QM2RC4: "<HTML><HEAD><TITLE>404 Not Found</TITLE></HEAD>\n<BODY BGCOLOR=\"#cc9999\"><H4>404 Not Found</H4>\nFile not found.\n<HR>\n<ADDRESS><A "
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for cdkauffmannnextcloud.duckdns.org is: org
Debug
The current status.io status for Let's Encrypt
Operational

Submitted Dec 11 05:25:04 2018. Sat in queue for 4ms. Completed in 17s. Hide verbose information.