kee8.ddns.net has an A (IPv4) record (66.228.0.178) but a request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address.
A timeout was experienced while communicating with kee8.ddns.net/66.228.0.178: Get "http://kee8.ddns.net/.well-known/acme-challenge/letsdebug-test": context deadline exceeded
Trace:
@0ms: Making a request to http://kee8.ddns.net/.well-known/acme-challenge/letsdebug-test (using initial IP 66.228.0.178)
@0ms: Dialing 66.228.0.178
@10000ms: Experienced error: context deadline exceeded
A test authorization for kee8.ddns.net to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
66.228.0.178: Fetching http://kee8.ddns.net/.well-known/acme-challenge/July0onVNggF7-2rPTcLqwGprPXKYs4MiImSeC7Vvzk: Timeout during connect (likely firewall problem)