To connect Infisical to Let’s Encrypt, follow the steps in the ACME-compatible CA integration guide but use the Let’s Encrypt ACME Directory URL: https://acme-v02.api.letsencrypt.org/directory.Note that Let’s Encrypt issues 90-day certificates and enforces a limit of 50 certificates per registered domain per week.We strongly recommend testing your setup against the Let’s Encrypt staging environment first at the ACME Directory URLhttps://acme-staging-v02.api.letsencrypt.org/directory prior to switching to the production environment. This allows you to verify your DNS configuration and certificate issuance process without consuming production rate limits.