What is a proxy checker?
A proxy checker tests whether a proxy server is online and usable. Paste any HTTP, HTTPS or SOCKS5 proxy and this free online proxy checker connects through it to measure its status, response speed, exit IP, country and anonymity level. It's the fastest way to clean a proxy list — separating working proxies from dead ones — with no proxy checker software or APK to install.
How to use this online proxy checker
Paste your proxies one per line in ip:port or ip:port:user:pass format (SOCKS5 works too). Pick a protocol or leave it on auto-detect, then press Check. Each proxy is tested in the background and results stream in live: working proxies show latency, country and anonymity, while dead ones show why they failed. Filter to working proxies and copy them with one click.
Proxy checker FAQ
Is this proxy checker free?
Yes. It's a free online proxy checker with no signup and nothing to download — no proxy checker software or APK. Paste your list and check proxies right in the browser.
Does it support SOCKS5 proxies?
It checks HTTP, HTTPS and SOCKS5 proxies. Leave the protocol on auto-detect and it tries HTTP first, then SOCKS5, or pick the type yourself.
How does it check a proxy's IP and anonymity?
The checker connects through your proxy to our endpoint and reads the exit IP it arrives from, its country, and which headers it forwards — so you see the proxy IP the destination sees and whether it's elite, anonymous or transparent.
Can I bulk-check a proxy list?
Yes — this is a bulk proxy checker. Paste up to 100 proxies at once and they're tested in parallel with live status, speed and country for each.
What does proxy speed (latency) mean?
Latency is how long the proxy took to complete the test request, in milliseconds. Lower is faster; a very high value or a timeout usually means the proxy is overloaded or dead.
Why do working proxies still get blocked on some sites?
Being alive isn't the same as being trusted. Datacenter proxy IPs are easy to flag. To actually pass checks on strict sites, use clean residential or mobile proxies — that's what Proxysterr provides.