Let's Debug

Test result for speedtest.newark.letsencrypt.mattnordhoff.net using http-01

Debug
CAA records control authorization for certificate authorities to issue certificates for a domain
letsencrypt.mattnordhoff.net. 0 IN CAA 0 issue "letsencrypt.org"
Debug
Requests made to the domain
Request to: speedtest.newark.letsencrypt.mattnordhoff.net/50.116.57.237, Result: [Address Type=IPv4,Server=nginx,HTTP Status=404], Issue:
Trace:
@0ms: Making a request to http://speedtest.newark.letsencrypt.mattnordhoff.net/.well-known/acme-challenge/letsdebug-test (using initial IP 50.116.57.237)
@0ms: Dialing 50.116.57.237
@13ms: Server response: HTTP 404 Not Found

Debug
A and AAAA records found for this domain
speedtest.newark.letsencrypt.mattnordhoff.net. 0 IN A 50.116.57.237
Challenge update failures for speedtest.newark.letsencrypt.mattnordhoff.net in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/5499034
acme: error code 403 "urn:ietf:params:acme:error:unauthorized": Invalid response from http://speedtest.newark.letsencrypt.mattnordhoff.net/.well-known/acme-challenge/gT3h_rE2RzphviDnZ9doWrjVeYqvJjixzr9mL6Q-muE: "<html>
<head><title>404 Not Found</title></head>
<body bgcolor="white">
<center><h1>404 Not Found</h1></center>
<hr><center>"
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for speedtest.newark.letsencrypt.mattnordhoff.net is: net
Debug
The current status.io status for Let's Encrypt
Operational

Submitted Aug 6 18:14:37 2018. Sat in queue for 1ms. Completed in 2s. Hide verbose information.