The Certificate Authority failed to download

My domain is:

I ran this command: certbot certonly -d --server "" --standalon (on windows 11 in shell)

It produced this output: Saving debug log to C:\Certbot\log\letsencrypt.log
Requesting a certificate for

Certbot failed to authenticate some domains (authenticator: standalone). The Certificate Authority reported these problems:
Type: incorrectResponse
Detail: The retrieval of was rejected. Our fetch received an HTTP status code of 404. request-id: wOy8Z6Nj0BRKCyyD4l5trg==

Hint: The Certificate Authority failed to download the challenge files from the temporary standalone webserver started by Certbot on port 80. Ensure that the listed domains point to this machine and that it can accept inbound connections from the internet.

Some challenges have failed.
Ask for help or search for solutions at See the logfile C:\Certbot\log\letsencrypt.log or re-run Certbot with -v for more details.

My web server is: Apache/2.4.57

The operating system my web server runs on is (include version): CentOS Linux 7 (Core)

My hosting provider:

I can login to a root shell on my machine: yes

I'm using a control panel to manage my site: cPanel

The version of my client is: certbot 2.2.0

Hi @Veeny,

It looks like you downloaded and ran Certbot on your own Windows machine, instead of on your Linux web server?

Certbot is meant to be run on the same computer where the web server application runs.

Could you potentially get a certificate through cPanel's existing support for certificates?


@AlyssaSmith00, please open your own separate topic


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