CryptoNice is both a command line tool and library which provides the ability to scan and report on the configuration of SSL/TLS for your internet or internal facing web services. Built using the sslyze API and ssl, http-client and dns libraries, cryptonice collects data on a given domain and performs a series of tests to check TLS configuration and supporting protocols such as HTTP2 and DNS.
Why do you think that https://github.com/digitalocean/nginxconfig.io is a good alternative to cryptonice