Let's Encrypt Wildcard and Auto-Renewal: Certificate for All Subdomains

Security · 19.04.2026
Let's Encrypt Wildcard and Auto-Renewal: Certificate for All Subdomains 
pip install certbot-dns-cloudflare
certbot certonly --dns-cloudflare   --dns-cloudflare-credentials /etc/letsencrypt/cloudflare/credentials.ini   -d example.com -d "*.example.com"
certbot renew --dry-run
Let's Encrypt sends email reminders at 30, 20 and 10 days before expiry. Make sure your registration email is current.
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