Hi, a certificate will be expired soon and I request certificate, but it is failed。
Please find the log。 Thanks.
Hi,
So this saying that when the Certificate Authority (Let’s Encrypt) checks your domain it cannot make an http connection to your system.
The default domain validation method is http, so for that your firewall has to allow incoming TCP port 80 traffic. HTTP Domain Validation (http-01) | Certify The Web Docs
If you can’t do that then you’d need to switch to DNS domain validation.
Hi,
Our docs are here: DNS Domain Validation (dns-01) | Certify The Web Docs
To use a DNS validation method you need to configure the API credentials for a DNS service, and that will depend on the DNS provider etc.
If you have already used HTTP domain validation in the past you should stick to that and just fix the firewall access so TCP port 80 traffic reaches that server.
If you are a licensed customer you can contact us at support at certifytheweb.com and describe what you are trying to achieve etc.

