Let's Debug

Test result for www.kleos.ai using http-01

Debug
Requests made to the domain
Request to: www.kleos.ai/139.162.143.226, Result: [Address Type=IPv4,Server=nginx,HTTP Status=301,Number of Redirects=1,Final HTTP Status=404], Issue:
Trace:
@0ms: Making a request to http://www.kleos.ai/.well-known/acme-challenge/letsdebug-test (using initial IP 139.162.143.226)
@0ms: Dialing 139.162.143.226
@170ms: Server response: HTTP 301 Moved Permanently
@170ms: Received redirect to https://www.kleos.ai/.well-known/acme-challenge/letsdebug-test
@170ms: Dialing 139.162.143.226
@516ms: Server response: HTTP 404 Not Found

Debug
A and AAAA records found for this domain
www.kleos.ai. 0 IN A 139.162.143.226
Challenge update failures for www.kleos.ai in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/20783723
acme: error code 403 "urn:ietf:params:acme:error:unauthorized": Invalid response from http://www.kleos.ai/.well-known/acme-challenge/6nN35Zx6rFiKXd3Cbs3tYWJlTWhRKFbaLwYbA9JmltY: "<html>\r\n<head><title>404 Not Found</title></head>\r\n<body bgcolor=\"white\">\r\n<center><h1>404 Not Found</h1></center>\r\n<hr><center>"
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for www.kleos.ai is: ai
Debug
The current status.io status for Let's Encrypt
Operational

Submitted Jan 22 14:40:15 2019. Sat in queue for 2ms. Completed in 5s. Hide verbose information.