Certbot returns an error


I want to authenticate my domain, but i received an error.

My Command: certbot certonly --standalone

Response: Certbot failed to authenticate some domains (authenticator: standalone). The Certificate Authority reported these problems:
Domain: cloud.domain
Type: unauthorized
Detail: : Invalid response from http://domain/.well-known/acme-challenge/SqmPCMfN7SebrEmEPgDu3SCdSq7Va4yprk_vLbxO6io: 404

Whats the problem? did i take a mistake?

When you opened this thread in the Help section, you should have been provided with a questionnaire. Maybe you didn't get it somehow (which is weird), or you've decided to delete it. In any case, all the answers to this questionnaire are required:

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. crt.sh | example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is:

I ran this command:

It produced this output:

My web server is (include version):

The operating system my web server runs on is (include version):

My hosting provider, if applicable, is:

I can login to a root shell on my machine (yes or no, or I don't know):

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot):


We can't help you without real domain information.


Hi @Panda,

The use of the --standalone method probably wasn't applicable to your situation.

However, it's hard to confirm this (or anything about your problem) without more information!

Looks like you got a certificate issued successfully

And are successfully serving a valid issued certificate


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