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A CAA record lists the certification authorities approved to issue certificats for a domain. Any certification authority that is not listed in a CAA record of a domain, will not be allowed to issue certificates for that domain or any subdomain.
Go to Domains > Domain [example.org] details (cog wheel) > DNS records,
Choose Add a DNS record,
Fill-in the form.
Do not put the root into the Hostname.
For example, by putting
www.example.org in this box, you will create a record for
Three tags are available:
issuewhich allows an authority,
issuewildwhich allows an authority for wildcard certificates,
iodefwhich gives a URL that certification authorities can contact in case of problems.
Let’s Encrypt certificates are generated for every HTTP address hosted on our servers. They must be authorized.
Let’s Encrypt authorization:
» Hostname: [leave blank] » Value: 0 issue "letsencrypt.org" » TTL: 300