LETS_ENCRYPT_DIRECTORY: str = 'https://acme-v02.api.letsencrypt.org/directory'
LETS_ENCRYPT_STAGING_DIRECTORY: str = 'https://acme-staging-v02.api.letsencrypt.org/directory'
ZEROSSL_DIRECTORY: str = 'https://acme.zerossl.com/v2/DV90'
