Let's Debug

Test result for network-fail.foo.monkas.xyz using http-01

Error
network-fail.foo.monkas.xyz has an A (IPv4) record (1.2.3.4) but a request to this address over port 80 did not succeed.
A timeout was experienced while communicating with network-fail.foo.monkas.xyz/1.2.3.4: Get http://network-fail.foo.monkas.xyz/.well-known/acme-challenge/letsdebug-test: dial tcp 1.2.3.4:80: i/o timeout

Trace:
> Making a request to http://network-fail.foo.monkas.xyz/.well-known/acme-challenge/letsdebug-test (using initial IP 1.2.3.4)
> Dialing 1.2.3.4
Debug
CAA records control authorization for certificate authorities to issue certificates for a domain
monkas.xyz. 0 IN CAA 0 issue "letsencrypt.org; validation-methods=http-01"
Debug
Requests made to the domain
Request to: network-fail.foo.monkas.xyz/1.2.3.4, Result: [Address Type=IPv4,Response Code=0,Server=], Issue: ANotWorking
Debug
A and AAAA records found for this domain
network-fail.foo.monkas.xyz. 0 IN A 1.2.3.4
Challenge update failures for network-fail.foo.monkas.xyz in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/623573
acme: error code 400 "urn:ietf:params:acme:error:connection": Fetching http://network-fail.foo.monkas.xyz/.well-known/acme-challenge/rIqsa4hyHA0h_7JdeRkJ434hPOqj3cf2lxYfzgvhjGo: Timeout during connect (likely firewall problem)
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for network-fail.foo.monkas.xyz is: xyz
Debug
The current status.io status for Let's Encrypt
Operational

Submitted Apr 30 01:49:31 2018. Sat in queue for 2ms. Completed in 21s. Hide verbose information.