Let's Debug

Test result for quanqiu.group using http-01

Debug
Requests made to the domain
Request to: quanqiu.group/139.196.90.216, Result: [Address=139.196.90.216,Address Type=IPv4,Server=nginx/1.14.0 (Ubuntu),HTTP Status=301,Number of Redirects=1,Final HTTP Status=404], Issue:
Trace:
@0ms: Making a request to http://quanqiu.group/.well-known/acme-challenge/letsdebug-test (using initial IP 139.196.90.216)
@0ms: Dialing 139.196.90.216
@457ms: Server response: HTTP 301 Moved Permanently
@457ms: Received redirect to https://quanqiu.group/.well-known/acme-challenge/letsdebug-test
@457ms: Dialing 139.196.90.216
@1377ms: Server response: HTTP 404 Not Found

Debug
A and AAAA records found for this domain
quanqiu.group. 0 IN A 139.196.90.216
Challenge update failures for quanqiu.group in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/72061007
acme: error code 403 "urn:ietf:params:acme:error:unauthorized": Invalid response from https://quanqiu.group/.well-known/acme-challenge/VDaMhH1leeHnnQKB7yqv98yyEOnGd46-oPpbwHqFtno [139.196.90.216]: 404
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for quanqiu.group is: group
Debug
The current status.io status for Let's Encrypt
Operational

Submitted Jan 25 15:54:47 2020. Sat in queue for 1ms. Completed in 5s. Hide verbose information.