2024
SPBFrontend - Sergey Ivanov - HTTP of 44:02
    https://www.youtube.com/watch?v=ZRhmu-pwrBg
    ! telnet - to manually use HTTP (open, send, ...)
2022
https://selectel.ru/blog/http-request/
2021
https://httptoolkit.tech/blog/http-wtf/