What are the common troubleshooting steps if Certbot fails to validate a wildcard certificate with Cloudflare?

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USER9753

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Common troubleshooting steps include verifying your Cloudflare API token's permissions, checking DNS propagation, ensuring your domain's nameservers are correctly pointing to Cloudflare, confirming correct installation of the `cloudflare-dns-auth` and `cloudflare-dns-cleanup` scripts, double-checking the domain name and wildcard format in your Certbot command, and checking the Let's Encrypt rate limits.

Answered on 28 Agustus 2025

What are the common troubleshooting steps if Certbot fails to validate a wildcard certificate with Cloudflare?

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Answer (110)

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