For software that opens dozens of threads at once, public addresses from open lists hit captchas and bans fastest. A closed pool with SOCKS5 and HTTP spreads requests across thousands of addresses. For multithreaded launches, users pick private addresses with spare threads. Where to start: https://telegra.ph/Data-Scraping-10-28 Addresses come from all over the world and traffic is unlimited. Traffic is not billed by the gigabyte. For private Socks5 proxy the addresses go straight to work.