Looks cool that someone made a custom proxy checker with “insane speed” — fast checking is definitely useful if you’re testing big lists and don’t want to wait ages. Proxy checkers are basically tools that verify whether a proxy works, measures response time, and checks things like protocol support (HTTP, SOCKS4/5) and sometimes anonymity level.
A couple of things to keep in mind:
Not all checkers are equal — some just test connectivity, others give more detailed info like latency, anonymity, or geolocation.
Speed claims are great, but what really matters is how accurate and reliable the results are, especially if you plan to use the proxies for things like automation or scraping where blocked IPs can be a pain.
It’s often handy to test against the specific target site you care about — a proxy that checks as “working” might still fail or be slow on your actual use case.
Anyone already used it on a big list? Curious how it compares to other checkers in real scenarios.