When you run automation and data collection, addresses from open lists fail on the first requests. A closed pool with SOCKS5 and HTTP works where public addresses get blocked. For multithreaded launches, people choose fast IPv4 and SOCKS5 proxies with spare threads. Details: https://telegra.ph/HTTP-Proxy-Service-11-10 Addresses come from all over the world and traffic is unlimited. There is a free test of up to 2 hours before you pay. For Proxy for Silver bullet the software connects right away.