Let's Debug

Test result for soletlab-dev.com using http-01

The validation request to this domain was blocked by what is likely a Palto Alto web application firewall device. The 'acme-protocol' application needs to be permitted on the firewall in order for the request to succeed. See https://community.letsencrypt.org/t/177600 for more information.
The server at produced this result.
Requests made to the domain
Request to: soletlab-dev.com/, Result: [Address=,Address Type=IPv4,Server=,HTTP Status=503], Issue:
@0ms: Making a request to http://soletlab-dev.com/.well-known/acme-challenge/letsdebug-test (using initial IP
@0ms: Dialing
@142ms: Server response: HTTP 503 Service Unavailable

A and AAAA records found for this domain
soletlab-dev.com. 0 IN A
Challenge update failures for soletlab-dev.com in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/7663164674
acme: error code 403 "urn:ietf:params:acme:error:unauthorized": Invalid response from http://soletlab-dev.com/.well-known/acme-challenge/FOGVcdxQuDa4nqT6ccjQ5KqqTeSdUazZLNGHu61lGuI: 503
The IANA public suffix is the TLD of the Registered Domain
The TLD for soletlab-dev.com is: com
The current status.io status for Let's Encrypt

Submitted Mar 10 16:55:11 2023. Sat in queue for 2ms. Completed in 2s. Hide verbose information.