2025
VladMishustin - Best HTTP Guide for Beginners of 24:48
    https://www.youtube.com/watch?v=6JzPr_8bMbk
2024
SPBFrontend - Sergey Ivanov - HTTP of 44:02
    https://www.youtube.com/watch?v=ZRhmu-pwrBg
    ! telnet - to manually use HTTP (open, send, ...)