Automated Let's Encrypt Wildcard SSL Certificates with ACME DNS-01 Challenges
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Published by ZodHost Engineering Team
Executive Summary & Key Takeaways
Complete guide to generating and automating 90-day Let's Encrypt Wildcard SSL certificates (*.domain.com) using DNS-01 ACME challenge hooks.
Why Wildcard SSL Requires DNS-01 Validation
While standard single-domain certificates use simple HTTP-01 file challenges, Wildcard Certificates cover unlimited subdomains and require proof of domain control via automated DNS-01 TXT record challenges.