zeegear.de 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,Response Code=404,Server=nginx/1.13.12] vs [Address Type=IPv6,Response Code=404,Server=nginx/1.6.2]
Requests made to the domain
Request to: zeegear.de/2a01:4f8:221:11cd:9734:4c26:6044:5f33, Result: [Address Type=IPv6,Response Code=404,Server=nginx/1.6.2], Issue:
Request to: zeegear.de/18.184.104.206, Result: [Address Type=IPv4,Response Code=404,Server=nginx/1.13.12], Issue:
A and AAAA records found for this domain
zeegear.de. 0 IN A 18.184.104.206
zeegear.de. 0 IN AAAA 2a01:4f8:221:11cd:9734:4c26:6044:5f33
Challenge update failures for zeegear.de in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/750194
acme: error code 403 "urn:ietf:params:acme:error:unauthorized": Invalid response from http://zeegear.de/.well-known/acme-challenge/8f_vojJfPX71Z3X_ee_7Dq0OiTGy1-GPD3BPZrmQrMQ: "<html>
<head><title>404 Not Found</title></head>
<body bgcolor="white">
<center><h1>404 Not Found</h1></center>
<hr><center>"
The IANA public suffix is the TLD of the Registered Domain
The TLD for zeegear.de is: de
Certificates contributing to rate limits for this domain
Serial: 345187020714588644576418087768772766485206
NotBefore: 2018-05-02 08:33:48 +0000 UTC
Names: [production.zeegear.com production.zeegear.de]
The current status.io status for Let's Encrypt
Operational