• Challenge types
• 1. Single domain:
• 1) Webroot mode:
• 2) Standalone mode:
• 3) Standalone tls alpn mode:
• 4) DNS API mode:
• 5) DNS manual mode:
• 6) DNS alias mode:
• 7) Apache mode:
• 8) Nginx mode:
• 2. Multiple domains, SAN mode
• 1) Webroot mode:
• 2) Standalone mode:
• 3) Dns api mode:
• 4) Dns manual mode:
• 3. Multiple domains, SAN mode, Hybrid mode