This is a YouTube Bridge plugin.
Description of the programmer:
Youtube Bridge allows your players to automatically get their Youtube Rank if their Channel meets certain requirements.With a simple but powerfull channel verification system it is completely fool proof
Original Site:https://www.spigotmc.org/resources/youtube-bridge.35928/
download link:
https://mega.nz/#!xWJ22SDL!6ikcB-sJFfFR3...8UxKqTnIM8