Let's Debug

Test result for www.qimiao.cloud using http-01

Error
www.qimiao.cloud has an A (IPv4) record (183.141.66.221) 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 www.qimiao.cloud/183.141.66.221: Get "http://www.qimiao.cloud/.well-known/acme-challenge/letsdebug-test": context deadline exceeded

Trace:
@0ms: Making a request to http://www.qimiao.cloud/.well-known/acme-challenge/letsdebug-test (using initial IP 183.141.66.221)
@0ms: Dialing 183.141.66.221
@10000ms: Experienced error: context deadline exceeded
A test authorization for www.qimiao.cloud to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
183.141.66.221: Fetching http://www.qimiao.cloud/.well-known/acme-challenge/5pc75g3n4T9MwiiGVkPTdmzfk6401kHlhYqWst2TtxE: Timeout during connect (likely firewall problem)
Debug
Requests made to the domain
Request to: www.qimiao.cloud/183.141.66.221, Result: [Address=183.141.66.221,Address Type=IPv4,Server=,HTTP Status=0], Issue: ANotWorking
Trace:
@0ms: Making a request to http://www.qimiao.cloud/.well-known/acme-challenge/letsdebug-test (using initial IP 183.141.66.221)
@0ms: Dialing 183.141.66.221
@10000ms: Experienced error: context deadline exceeded

Debug
A and AAAA records found for this domain
www.qimiao.cloud. 0 IN A 183.141.66.221
Challenge update failures for www.qimiao.cloud in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/7775955694
acme: error code 400 "urn:ietf:params:acme:error:connection": 183.141.66.221: Fetching http://www.qimiao.cloud/.well-known/acme-challenge/5pc75g3n4T9MwiiGVkPTdmzfk6401kHlhYqWst2TtxE: Timeout during connect (likely firewall problem)
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for www.qimiao.cloud is: cloud
Debug
The current status.io status for Let's Encrypt
Operational

Submitted Mar 16 13:18:34 2023. Sat in queue for 4ms. Completed in 23s. Hide verbose information.