lecarnetblanc.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/2.4.6 (CentOS) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.4.16,HTTP Status=404] vs [Address Type=IPv6,Server=,HTTP Status=302,Number of Redirects=2,Final HTTP Status=200]
Requests made to the domain
Request to: lecarnetblanc.com/2602:ff23:0:8888::207, Result: [Address Type=IPv6,Server=,HTTP Status=302,Number of Redirects=2,Final HTTP Status=200], Issue:
Trace:
@0ms: Making a request to http://lecarnetblanc.com/.well-known/acme-challenge/letsdebug-test (using initial IP 2602:ff23:0:8888::207)
@0ms: Dialing 2602:ff23:0:8888::207
@212ms: Server response: HTTP 302 Object moved
@212ms: Received redirect to http://www.dynu.com/Support/Offline?domainName=lecarnetblanc.com&Hostname=lecarnetblanc.com
@806ms: Dialing 207.38.70.29
@935ms: Server response: HTTP 301 Moved Permanently
@935ms: Received redirect to https://www.dynu.com/Support/Offline?domainName=lecarnetblanc.com&Hostname=lecarnetblanc.com
@936ms: Dialing 207.38.70.29
@1201ms: Server response: HTTP 200 OK
Request to: lecarnetblanc.com/184.144.176.224, Result: [Address Type=IPv4,Server=Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.4.16,HTTP Status=404], Issue:
Trace:
@0ms: Making a request to http://lecarnetblanc.com/.well-known/acme-challenge/letsdebug-test (using initial IP 184.144.176.224)
@0ms: Dialing 184.144.176.224
@61ms: Server response: HTTP 404 Not Found
A and AAAA records found for this domain
lecarnetblanc.com. 0 IN A 184.144.176.224
lecarnetblanc.com. 0 IN AAAA 2602:ff23:0:8888::207
Challenge update failures for lecarnetblanc.com in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/3466218
acme: error code 403 "urn:ietf:params:acme:error:unauthorized": Invalid response from http://lecarnetblanc.com/.well-known/acme-challenge/c1-hgSU3OIALzMZqU2hYur0YYa8Ofsn5T5zCJk1u9U8: "<!doctype html>
<!--[if lt IE 7]> <html class="no-js lt-ie9 lt-ie8 lt-ie7" lang="en"> <![endif]-->
<!--[if IE 7]> <html cla"
The IANA public suffix is the TLD of the Registered Domain
The TLD for lecarnetblanc.com is: com
The current status.io status for Let's Encrypt
Operational