santadentis.ru 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=nginx,HTTP Status=404] vs [Address Type=IPv6,Server=nginx/1.4.6 (Ubuntu),HTTP Status=200]
Requests made to the domain
Request to: santadentis.ru/2a01:d8:4:2::2cb, Result: [Address Type=IPv6,Server=nginx/1.4.6 (Ubuntu),HTTP Status=200], Issue:
Trace:
@0ms: Making a request to http://santadentis.ru/.well-known/acme-challenge/letsdebug-test (using initial IP 2a01:d8:4:2::2cb)
@0ms: Dialing 2a01:d8:4:2::2cb
@373ms: Server response: HTTP 200 OK
Request to: santadentis.ru/31.31.196.220, Result: [Address Type=IPv4,Server=nginx,HTTP Status=404], Issue:
Trace:
@0ms: Making a request to http://santadentis.ru/.well-known/acme-challenge/letsdebug-test (using initial IP 31.31.196.220)
@0ms: Dialing 31.31.196.220
@235ms: Server response: HTTP 404 Not Found
A and AAAA records found for this domain
santadentis.ru. 0 IN A 31.31.196.220
santadentis.ru. 0 IN AAAA 2a01:d8:4:2::2cb
Challenge update failures for santadentis.ru in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/9094341
acme: error code 403 "urn:ietf:params:acme:error:unauthorized": The key authorization file from the server did not match this challenge [jG5P-VN61DzvcB1z7tC1mjrBjpiJ_XEnTam_qQfyzzE.49wknCPN_3HICrKF6BR-V-a-E_ipoaGro7D1Fju_2ec] != [Unreachable link]
The IANA public suffix is the TLD of the Registered Domain
The TLD for santadentis.ru is: ru
The current status.io status for Let's Encrypt
Operational