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LightningBytes
Free tool

Proxy Checker: verify any proxy's latency and stability

Paste an endpoint from any provider, hit check, and measure connect latency, the delay the proxy adds and the exit IP in seconds. No account required.

Popular
Protocol
Credentials(username & password, required by most proxies)

Proxies that require auth (most do, incl. LightningBytes) need a username and password above. Credentials are used in-memory for this single check and never stored.

How it works

Three steps, ten seconds

  1. 01

    Enter the proxy endpoint

    Paste a `host:port` endpoint (HTTP or SOCKS5) and, if required, its username and password. Works with any provider.

  2. 02

    We connect from our server

    Our backend opens the proxy connection and probes it with tiny requests (an IP echo and a two-byte latency ping), recording timing at each stage.

  3. 03

    Read the results

    You get a pass/fail verdict, connect and round-trip times, the delay the proxy adds and the exit IP it presented to us.

FAQ

Questions, answered

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