How to Test Proxies

Testing your proxies before using them saves time and avoids failed requests. A proxy checker like ProxyThis tests each proxy by making a real HTTP request through it and checking if it succeeds. Here's how to do it in four steps.

Step 1: Prepare Your Proxy List

Collect the proxies you want to test. ProxyThis accepts all common formats:

• host:port
• user:pass@host:port
• host:port:user:pass
• socks5://host:port
• http://user:pass@host:port

You can mix formats in the same list — the checker detects each one automatically.

Step 2: Paste and Test

Go to proxyth.is, paste your proxies into the text area (one per line), and click Test Proxies Now. Free users can test up to 25 proxies per batch.

All proxies are tested concurrently — you don't have to wait for one to finish before the next starts. Results stream into the table live.

Step 3: Review the Results

Each proxy result shows:

• Status — Working, Failed, or Timeout
• Response time — milliseconds to connect and get a response
• Country — where the proxy's exit IP is located
• Protocol — HTTP, HTTPS, SOCKS4, or SOCKS5
• Error — specific reason for failures (connection refused, auth failed, timeout, etc.)

Step 4: Export Working Proxies

Once testing is complete, click Export Working TXT to download a clean list of working proxies, or Export CSVto get a spreadsheet with all the details. You can also click Copy Working to copy them to clipboard instantly.

Tips for Better Results

• If a proxy fails, use Retest Failed before discarding it — temporary network issues can cause false failures.
• Response times under 500ms are generally considered fast. Over 2 seconds is slow for most use cases.
• Check the country column to verify your proxies are exiting where you expect.
• SOCKS5 proxies that work for HTTP will also work for other TCP traffic.