Let's Debug

Test result for astra.scada-international.com using http-01

Error
astra.scada-international.com has an A (IPv4) record (77.233.231.67) 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.
Get "http://astra.scada-international.com/.well-known/acme-challenge/letsdebug-test": read tcp 172.104.24.29:33824->77.233.231.67:80: read: connection reset by peer

Trace:
@0ms: Making a request to http://astra.scada-international.com/.well-known/acme-challenge/letsdebug-test (using initial IP 77.233.231.67)
@0ms: Dialing 77.233.231.67
@194ms: Experienced error: read tcp 172.104.24.29:33824->77.233.231.67:80: read: connection reset by peer
A test authorization for astra.scada-international.com to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
77.233.231.67: Fetching http://astra.scada-international.com/.well-known/acme-challenge/6cH05quIt9EiBL-9BtLctJm2lm7RvY3Y0O2ACFAfv-U: Connection reset by peer
Debug
Requests made to the domain
Request to: astra.scada-international.com/77.233.231.67, Result: [Address=77.233.231.67,Address Type=IPv4,Server=,HTTP Status=0], Issue: ANotWorking
Trace:
@0ms: Making a request to http://astra.scada-international.com/.well-known/acme-challenge/letsdebug-test (using initial IP 77.233.231.67)
@0ms: Dialing 77.233.231.67
@194ms: Experienced error: read tcp 172.104.24.29:33824->77.233.231.67:80: read: connection reset by peer

Debug
A and AAAA records found for this domain
astra.scada-international.com. 0 IN A 77.233.231.67
Challenge update failures for astra.scada-international.com in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/7202000064
acme: error code 400 "urn:ietf:params:acme:error:connection": 77.233.231.67: Fetching http://astra.scada-international.com/.well-known/acme-challenge/6cH05quIt9EiBL-9BtLctJm2lm7RvY3Y0O2ACFAfv-U: Connection reset by peer
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for astra.scada-international.com is: com
Debug
1 Certificates contributing to rate limits for this domain

Serial: 294149276747751888170160849315422791584146
NotBefore: 2023-02-09 10:53:56 +0000 UTC
Names: [images.scada-international.com]

Debug
The current status.io status for Let's Encrypt
Operational

Submitted Feb 14 04:20:44 2023. Sat in queue for 2ms. Completed in 14s. Hide verbose information.