Let's Debug

Test result for router.jpleva.cz using http-01

A test authorization for router.jpleva.cz to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
164.215.116.174: Fetching http://router.jpleva.cz/.well-known/acme-challenge/MnqQaYIpg0drZFDujqLU_ww1CTGTYHzClIGnfnoqIhg: Timeout during connect (likely firewall problem)
Debug
Requests made to the domain
Request to: router.jpleva.cz/164.215.116.174, Result: [Address=164.215.116.174,Address Type=IPv4,Server=lighttpd/1.4.64,HTTP Status=404], Issue:
Trace:
@0ms: Making a request to http://router.jpleva.cz/.well-known/acme-challenge/letsdebug-test (using initial IP 164.215.116.174)
@0ms: Dialing 164.215.116.174
@216ms: Server response: HTTP 404 Not Found

Debug
A and AAAA records found for this domain
router.jpleva.cz. 0 IN A 164.215.116.174
An internal error occurred while checking the domain
Failed to query certwatch database to check rate limits: pq: canceling statement due to user request
Challenge update failures for router.jpleva.cz in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/2796906534
acme: error code 400 "urn:ietf:params:acme:error:connection": 164.215.116.174: Fetching http://router.jpleva.cz/.well-known/acme-challenge/MnqQaYIpg0drZFDujqLU_ww1CTGTYHzClIGnfnoqIhg: Timeout during connect (likely firewall problem)
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for router.jpleva.cz is: cz
Debug
The current status.io status for Let's Encrypt
Operational

Submitted Jun 8 23:29:29 2022. Sat in queue for 2ms. Completed in 21s. Hide verbose information.