Proxy Checker — free online proxy tester (HTTP, SOCKS5)

Free Proxy Checker — How It Works

PROXYLEET Proxy Checker validates HTTP, HTTPS, SOCKS4 and SOCKS5 proxies. Test a single proxy or upload a list of thousands — we'll process them in parallel and return a shareable result page.

Supported formats

• ip:port — public proxies
• ip:port:user:pass — private with auth
• user:pass@ip:port — URL style

What the result shows

• Protocol actually served on the port (HTTP/HTTPS/SOCKS4/SOCKS5).
• Country, region and network operator of the exit IP.
• Anonymity level: Transparent, Anonymous or Elite.
• Response time in milliseconds, measured through the proxy.

How to check proxy anonymity

Anonymity is about what the target site sees. Transparent forwards your real IP in headers, so it is useless for bypassing restrictions. Anonymous hides the original address but reveals that a proxy is in use. Elite reveals neither — the site sees an ordinary visitor. The checker detects the level automatically and shows the exit IP, so you can verify the substitution without third-party tools.

How to check proxy speed

Each row shows the response time in milliseconds — the real round trip through the proxy, not a ping to its IP. Under 1000 ms is comfortable for scraping and multi-accounting; for video and downloads pick nodes under 300 ms. If the timing jumps between runs, the node is overloaded — re-run the check to confirm.

Bulk proxy list checking

Paste the whole list, one proxy per line, up to 10,000 per run. Mixed formats in one list are fine. Checks run in parallel and the result stays on its own page behind a permanent link — handy for sharing with a teammate or attaching to a dispute with a proxy seller.

Why a working proxy fails the check

• The lease expired — by far the most common reason for purchased proxies.
• Credentials changed, or the list contains stray spaces and characters.
• The proxy is IP-bound and does not accept our server's address.
• Wrong protocol assumed: a SOCKS5 port will not answer an HTTP request.
• The provider blocked the destination while the proxy itself is alive.

Need proxies that work

We sell dedicated datacenter IPv4 and mobile 4G/LTE proxies across 97 countries with HTTP/S and SOCKS5, plus MTProto proxies for Telegram. Instant delivery after payment, and every proxy you buy can be tested right here.