gschmidt.duckdns.org has an A (IPv4) record (84.28.65.36) but a request to this address over port 80 did not succeed.
Get http://gschmidt.duckdns.org/.well-known/acme-challenge/letsdebug-test: dial tcp 84.28.65.36:80: connect: connection refused
Trace:
@0ms: Making a request to http://gschmidt.duckdns.org/.well-known/acme-challenge/letsdebug-test (using initial IP 84.28.65.36)
@0ms: Dialing 84.28.65.36
@89ms: Experienced error: dial tcp 84.28.65.36:80: connect: connection refused
A test authorization for gschmidt.duckdns.org to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://gschmidt.duckdns.org/.well-known/acme-challenge/CdslvXyri-Kz6CGpTqWFuJhg9AZUX0xXUeHOslNZZyQ: Connection refused
Requests made to the domain
Request to: gschmidt.duckdns.org/84.28.65.36, Result: [Address Type=IPv4,Server=,HTTP Status=0], Issue: ANotWorking
Trace:
@0ms: Making a request to http://gschmidt.duckdns.org/.well-known/acme-challenge/letsdebug-test (using initial IP 84.28.65.36)
@0ms: Dialing 84.28.65.36
@89ms: Experienced error: dial tcp 84.28.65.36:80: connect: connection refused
A and AAAA records found for this domain
gschmidt.duckdns.org. 0 IN A 84.28.65.36
Challenge update failures for gschmidt.duckdns.org in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/15658778
acme: error code 400 "urn:ietf:params:acme:error:connection": Fetching http://gschmidt.duckdns.org/.well-known/acme-challenge/CdslvXyri-Kz6CGpTqWFuJhg9AZUX0xXUeHOslNZZyQ: Connection refused
The IANA public suffix is the TLD of the Registered Domain
The TLD for gschmidt.duckdns.org is: org
The current status.io status for Let's Encrypt
Operational