Let's Debug

Test result for mail.gounivers.com using http-01

Debug
Requests made to the domain
Request to: mail.gounivers.com/173.212.218.246, Result: [Address=173.212.218.246,Address Type=IPv4,Server=Apache/2.4.29 (Ubuntu),HTTP Status=404], Issue:
Trace:
@0ms: Making a request to http://mail.gounivers.com/.well-known/acme-challenge/letsdebug-test (using initial IP 173.212.218.246)
@0ms: Dialing 173.212.218.246
@195ms: Server response: HTTP 404 Not Found

Debug
A and AAAA records found for this domain
mail.gounivers.com. 0 IN A 173.212.218.246
Challenge update failures for mail.gounivers.com in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/218471102
acme: error code 403 "urn:ietf:params:acme:error:unauthorized": Invalid response from http://mail.gounivers.com/.well-known/acme-challenge/WXYZ6yBP8-BP-uqgQ8g4-KnM0ElUfiim8cIS01KSAD4 [173.212.218.246]: "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n<html><head>\n<title>404 Not Found</title>\n</head><body>\n<h1>Not Found</h1>\n<p"
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for mail.gounivers.com is: com
Debug
1 Certificates contributing to rate limits for this domain

Serial: 344248770328919099735834141607998960984229
NotBefore: 2021-01-04 16:22:31 +0000 UTC
Names: [mail.gounivers.com]

Debug
The current status.io status for Let's Encrypt
Operational

Submitted Jan 11 00:24:10 2021. Sat in queue for 2ms. Completed in 2s. Hide verbose information.