Let's Debug

Test result for jonrowlison.com using http-01

A test authorization for jonrowlison.com to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://jonrowlison.com/.well-known/acme-challenge/Gf7ty_Q2cGGqhcywT0Qmr_kjHy6F5EawW5u_aMSx3vg: Timeout during connect (likely firewall problem)
Debug
Requests made to the domain
Request to: jonrowlison.com/76.17.245.225, Result: [Address=76.17.245.225,Address Type=IPv4,Server=Microsoft-IIS/10.0,HTTP Status=404], Issue:
Trace:
@0ms: Making a request to http://jonrowlison.com/.well-known/acme-challenge/letsdebug-test (using initial IP 76.17.245.225)
@0ms: Dialing 76.17.245.225
@191ms: Server response: HTTP 404 Not Found

Debug
A and AAAA records found for this domain
jonrowlison.com. 0 IN A 76.17.245.225
Challenge update failures for jonrowlison.com in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/83196059
acme: error code 400 "urn:ietf:params:acme:error:connection": Fetching http://jonrowlison.com/.well-known/acme-challenge/Gf7ty_Q2cGGqhcywT0Qmr_kjHy6F5EawW5u_aMSx3vg: Timeout during connect (likely firewall problem)
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for jonrowlison.com is: com
Debug
The current status.io status for Let's Encrypt
Operational

Submitted Apr 4 19:49:35 2020. Sat in queue for 1ms. Completed in 14s. Hide verbose information.