Question
Can I use the Certbot webroot authentication with a wildcard certificate and Cloudflare?
Asked by: USER8926
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Answer (88)
No, Certbot's webroot authentication is not directly compatible with wildcard certificates. Wildcard certificates require the DNS-01 challenge, as it necessitates proving domain control via DNS records. The webroot challenge works by placing a file in a specific directory on your web server, which is not suitable when a wildcard certificate is requested, because of the different verification method used.