Proxy connection checker / proxy checker
I made this because i wanted to learn libcurl and multi threading :)
When selecting the https option be sure to have OpenSSL, GnuTLS and NSS libcurl or else you will get: "A requested feature, protocol or option was not found built-in in this libcurl due to a build-time decision."
https://github.com/fate0/proxylist https://github.com/ShiftyTR/Proxy-List https://github.com/rdavydov/proxy-list https://github.com/mmpx12/proxy-list https://github.com/IshanSingla/proxy-list https://github.com/monosans/proxy-list https://github.com/S767/proxycheck https://github.com/UptimerBot/proxy-list https://github.com/TheSpeedX/PROXY-List https://github.com/aswin-m-p/proxy-list https://github.com/reny311/proxy https://github.com/Volodichev/proxy-list https://github.com/RX4096/proxy-list https://github.com/manuGMG/proxy-365 https://github.com/HyperBeats/proxy-list https://github.com/Koshsky/proxy-getter https://github.com/mertguvencli/http-proxy-list https://github.com/roosterkid/openproxylist https://github.com/hookzof/socks5_list https://github.com/ObcbO/getproxy https://github.com/jetkai/proxy-list https://github.com/yuewei5215/Proxies-1 https://github.com/clarketm/proxy-list https://github.com/sunny9577/proxy-scraper https://github.com/stamparm/fetch-some-proxies https://github.com/almroot/proxylist https://github.com/takelley1/proxy-servers https://github.com/ph4ntonn/Stowaway https://github.com/proxyips/proxylist https://github.com/vaitan/proxy-list https://github.com/h4mid007/free-proxy-list