Certbot authentication failing

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:
certbot --apache
It produced this output:

Challenge failed for domain o3farma.com
http-01 challenge for o3farma.com
Cleaning up challenges
Some challenges have failed.


  • The following errors were reported by the server:

    Domain: o3farma.com
    Type: unauthorized
    Detail: Invalid response from

    To fix these errors, please make sure that your domain name was
    entered correctly and the DNS A/AAAA record(s) for that domain
    contain(s) the right IP address.

My web server is (include version):
The operating system my web server runs on is (include version):
ubuntu 20
My hosting provider, if applicable, is:
digital ocean
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):

certbot 0.40.0

I checked https://check-your-website.server-daten.de/?q=3ofarma.com
and it says the following:
Info: Creating a Letsencrypt certificate with that domain name isn't possible. To create a certificate you need a registered, worldwide unique domain name. The domain name ends with a public suffix, that's good (not Grade Z). But the domain isn't registered. If you want a certificate with that domain name, you have to proof that you are the domain owner. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.

I am not finding any DNS Record for the above domain.


Which name is it?

  • zero three [NXD]
  • oh three [Phishing site]
  • three oh [NXD]

I had check 03farma.com for DNS Records and found none.


I doubt we will be hearing much on this one...


And no DNS Records for 3ofarma.com
DNS Lookup - Check DNS Records


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