Is 47.52.223.161:5872 a proxy? Yes.

Port 5872: Registered port range

This port sits in the middle range, where any ordinary program can listen without special permission. The number itself carries no reserved meaning, which tells you somebody picked it on purpose instead of accepting a default.

Every check is a real connection

HProxy does not read this address off somebody else's list and pass it on. Each check opens a real connection to 47.52.223.161:5872 and gives it up to 90 seconds to answer. Slow is not the same as unreachable, and plenty of working proxies take half a minute to reply. Anything that does not answer in that budget counts as a failure and is recorded as one, which is why the percentage on this page moves rather than sitting at a marketing number. The handshake is attempted across HTTP, HTTPS, SOCKS4 and SOCKS5, which is how we know it spoke HTTP.

1,912 checks, 1,814 answered

That is 95% of the time, measured since June 13, 2026. Every one of those results, successes and failures alike, is a connection HProxy opened itself.

It is being re-tested continuously

47.52.223.161:5872 is in the live rotation, so it is re-tested continuously rather than on a daily cycle. If it stops answering it is marked down immediately, and if it stays down for 3 days it moves into the public proxy database with its full record intact. Nothing is deleted at any point.