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Proxy error analysis

Paste an error text or a response code and find out what happened and what to check, in order. No sign-up; the analysis runs in your browser.

Analyze the error

Paste an error message, a response code (for example 407) or curl output. Any programming language and any browser will do.

The analysis runs in your browser: the text is not sent anywhere or saved. If it contains a password, it stays with you.

Paste an error above and the cause will appear here.

Errors we cover

We recognize them by the text or response code. If your error is not on this list, the analysis says so instead of guessing.

  • 407: proxy authentication required
  • 403: access denied
  • 429: too many requests
  • 502, 503, 504: the server is not responding
  • Connection refused (ECONNREFUSED)
  • Connection timed out (ETIMEDOUT)
  • Connection reset (ECONNRESET)
  • Could not build the tunnel (ERR_TUNNEL_CONNECTION_FAILED)
  • The browser does not support this proxy (ERR_NO_SUPPORTED_PROXIES)
  • SOCKS5 error
  • Certificate or TLS error
  • Name not found (DNS)
  • Captcha or browser check

The text stays with you

The analysis works entirely in your browser: the page does not send the pasted text to a server and does not save it. You can verify this in the Network tab of the developer tools.

What next

Still failing? Describe the error in a chat with Hopmind. If the problem is the line format or a password with special characters, the converter will help.