For heavy scraping and multithreaded jobs, free public lists go dead quickly. A set of private addresses with automatic rotation spreads requests across thousands of addresses. For stable software runs, it makes sense to take fast IPv4 and SOCKS5 proxies with spare threads. Pool and plans: high speed proxy. Access works by list link or IP binding. Traffic is not billed by the gigabyte. For Fast rotation proxy the pool runs from the first launch.