v4v6fail.monkas.xyz has multiple IP addresses in its DNS records. While they 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 some of the IP addresses may unintentionally point to different servers, which would cause validation to fail.
[Address=93.184.216.34,Address Type=IPv4,Server=ECS (nyb/1D0B),HTTP Status=404] vs [Address=172.104.24.29,Address Type=IPv4,Server=,HTTP Status=503]
Requests made to the domain
Request to: v4v6fail.monkas.xyz/93.184.216.34, Result: [Address=93.184.216.34,Address Type=IPv4,Server=ECS (nyb/1D0B),HTTP Status=404], Issue:
Trace:
@0ms: Making a request to http://v4v6fail.monkas.xyz/.well-known/acme-challenge/letsdebug-test (using initial IP 93.184.216.34)
@0ms: Dialing 93.184.216.34
@3ms: Server response: HTTP 404 Not Found
Request to: v4v6fail.monkas.xyz/172.104.24.29, Result: [Address=172.104.24.29,Address Type=IPv4,Server=,HTTP Status=503], Issue:
Trace:
@0ms: Making a request to http://v4v6fail.monkas.xyz/.well-known/acme-challenge/letsdebug-test (using initial IP 172.104.24.29)
@0ms: Dialing 172.104.24.29
@3005ms: Server response: HTTP 503 Service Unavailable
A and AAAA records found for this domain
v4v6fail.monkas.xyz. 0 IN A 93.184.216.34
v4v6fail.monkas.xyz. 0 IN A 172.104.24.29
Challenge update failures for v4v6fail.monkas.xyz in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/42483547
acme: error code 403 "urn:ietf:params:acme:error:unauthorized": Invalid response from http://v4v6fail.monkas.xyz/.well-known/acme-challenge/-R-DUledY77hBAFepg-gu5f1eJcCV7DE3r9CJXkjL1Y [172.104.24.29]: 503
The IANA public suffix is the TLD of the Registered Domain
The TLD for v4v6fail.monkas.xyz is: xyz
1 Certificates contributing to rate limits for this domain
Serial: 322816223333759731436357461169516445732579
NotBefore: 2019-07-23 00:44:30 +0000 UTC
Names: [a.foo.monkas.xyz]
The current status.io status for Let's Encrypt
Operational