2025
https://tproger.ru/articles/kak-rabotayut-ssl-tls-sertifikaty-i-zachem-oni-nuzhny
2022
https://roman-academy.medium.com/using-docker-to-set-up-nginx-reverse-proxy-with-auto-ssl-generation-3a8a360b69ae
2021
https://www.netmeister.org/whatsthatcert/
https://www.netmeister.org/blog/urls.html
https://habr.com/ru/company/itsoft/blog/585404/
    ! starting point and terminology