Let's Debug

Test result for psisix.com using http-01

psisix.com has both AAAA (IPv6) and A (IPv4) records. While they both appear to be accessible on the network, we have detected that they produce differing results when sent an ACME HTTP validation request. This may indicate that the IPv4 and IPv6 addresses may unintentionally point to different servers, which would cause validation to fail.
[Address Type=IPv4,Server=Apache/2.4.29 (Ubuntu),HTTP Status=200] vs [Address Type=IPv6,Server=Apache/2.4.18 (Ubuntu),HTTP Status=404]
Warning
An internal error occurred while checking the domain
Failed to query certwatch database to check rate limits: context deadline exceeded
Debug
Requests made to the domain
Request to: psisix.com/2600:3c03::f03c:91ff:fe59:8841, Result: [Address Type=IPv6,Server=Apache/2.4.18 (Ubuntu),HTTP Status=404], Issue:
Trace:
@0ms: Making a request to http://psisix.com/.well-known/acme-challenge/letsdebug-test (using initial IP 2600:3c03::f03c:91ff:fe59:8841)
@0ms: Dialing 2600:3c03::f03c:91ff:fe59:8841
@4ms: Server response: HTTP 404 404

Request to: psisix.com/162.216.16.46, Result: [Address Type=IPv4,Server=Apache/2.4.29 (Ubuntu),HTTP Status=200], Issue:
Trace:
@0ms: Making a request to http://psisix.com/.well-known/acme-challenge/letsdebug-test (using initial IP 162.216.16.46)
@0ms: Dialing 162.216.16.46
@6ms: Server response: HTTP 200 OK

Debug
A and AAAA records found for this domain
psisix.com. 0 IN A 162.216.16.46
psisix.com. 0 IN AAAA 2600:3c03::f03c:91ff:fe59:8841
Challenge update failures for psisix.com in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/5347677
acme: error code 403 "urn:ietf:params:acme:error:unauthorized": Invalid response from http://psisix.com/.well-known/acme-challenge/OnfPLw1AXSFxpjuQyCdxetE3cco5_JLWUWgKWo40SKc [2600:3c03::f03c:91ff:fe59:8841]: 404
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for psisix.com is: com
Debug
The current status.io status for Let's Encrypt
Operational

Submitted Aug 3 05:37:30 2018. Sat in queue for 4ms. Completed in 2m1s. Hide verbose information.