Let's Debug

Test result for russjudge.com using http-01

russjudge.com has an AAAA (IPv6) record (2600:1700:abd8:4200:c8df:58dc:f5cc:58d7) but a test request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address. You should either ensure that validation requests to this domain succeed over IPv6, or remove its AAAA record.
A timeout was experienced while communicating with russjudge.com/2600:1700:abd8:4200:c8df:58dc:f5cc:58d7: Get "http://russjudge.com/.well-known/acme-challenge/letsdebug-test": dial tcp [2600:1700:abd8:4200:c8df:58dc:f5cc:58d7]:80: i/o timeout

Trace:
@0ms: Making a request to http://russjudge.com/.well-known/acme-challenge/letsdebug-test (using initial IP 2600:1700:abd8:4200:c8df:58dc:f5cc:58d7)
@0ms: Dialing 2600:1700:abd8:4200:c8df:58dc:f5cc:58d7
@10001ms: Experienced error: dial tcp [2600:1700:abd8:4200:c8df:58dc:f5cc:58d7]:80: i/o timeout
Error
russjudge.com has an A (IPv4) record (104.0.246.113) 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 russjudge.com/104.0.246.113: Get "http://russjudge.com/.well-known/acme-challenge/letsdebug-test": dial tcp 104.0.246.113:80: i/o timeout

Trace:
@0ms: Making a request to http://russjudge.com/.well-known/acme-challenge/letsdebug-test (using initial IP 104.0.246.113)
@0ms: Dialing 104.0.246.113
@10000ms: Experienced error: dial tcp 104.0.246.113:80: i/o timeout
A test authorization for russjudge.com to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
104.0.246.113: Fetching http://russjudge.com/.well-known/acme-challenge/ccXUavJnSeKRrGJjvnc54bbYj_MEMi3lJ2oe7eepY34: Timeout during connect (likely firewall problem)
Debug
Requests made to the domain
Request to: russjudge.com/2600:1700:abd8:4200:c8df:58dc:f5cc:58d7, Result: [Address=2600:1700:abd8:4200:c8df:58dc:f5cc:58d7,Address Type=IPv6,Server=,HTTP Status=0], Issue: AAAANotWorking
Trace:
@0ms: Making a request to http://russjudge.com/.well-known/acme-challenge/letsdebug-test (using initial IP 2600:1700:abd8:4200:c8df:58dc:f5cc:58d7)
@0ms: Dialing 2600:1700:abd8:4200:c8df:58dc:f5cc:58d7
@10001ms: Experienced error: dial tcp [2600:1700:abd8:4200:c8df:58dc:f5cc:58d7]:80: i/o timeout

Request to: russjudge.com/104.0.246.113, Result: [Address=104.0.246.113,Address Type=IPv4,Server=,HTTP Status=0], Issue: ANotWorking
Trace:
@0ms: Making a request to http://russjudge.com/.well-known/acme-challenge/letsdebug-test (using initial IP 104.0.246.113)
@0ms: Dialing 104.0.246.113
@10000ms: Experienced error: dial tcp 104.0.246.113:80: i/o timeout

Debug
A and AAAA records found for this domain
russjudge.com. 0 IN A 104.0.246.113
russjudge.com. 0 IN AAAA 2600:1700:abd8:4200:c8df:58dc:f5cc:58d7
Challenge update failures for russjudge.com in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/6388473133
acme: error code 400 "urn:ietf:params:acme:error:connection": 104.0.246.113: Fetching http://russjudge.com/.well-known/acme-challenge/ccXUavJnSeKRrGJjvnc54bbYj_MEMi3lJ2oe7eepY34: Timeout during connect (likely firewall problem)
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for russjudge.com is: com
Debug
The current status.io status for Let's Encrypt
Operational

Submitted Jan 7 19:09:47 2023. Sat in queue for 2ms. Completed in 23s. Hide verbose information.