curl --request POST \
--url https://api.kinsta.com/v2/sites/environments/{env_id}/domains \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"domain_name": "<string>",
"is_wildcardless": false,
"custom_ssl_key": "<string>",
"custom_ssl_cert": "<string>"
}
'