If you manage many accounts and hit the same sites often, proxy quality decides most of the outcome. An IPv4 pool with rotation keeps the load steady. For stable software runs, people choose private addresses with spare threads. Plans and access: Private IPv4 proxy. Plans cover 1,000, 3,000 and 5,000 threads. There is a free test of up to 2 hours before you pay. For Proxy for A-parser the addresses go straight to work.