ProxyChecker is a software product designed to гeload proxies, store them, and automatically recheck in accordance with flexible criteria.
ProxyChecker allows you to:
Store sources of proxies and conveniently work with them.
Load new proxies from sources to the repository at a specified frequency.
Set filters for all sources and for each separately.
Flexibly configure proxy check for each source.
Restriction built into ZennoPoster ProxyChecker: you cannot unload the proxy list.
You can find more detailed information about ProxyChecker at this link - ZennoProxyChecker
Built-in ProxyChecker settings