01
Verify the complete network route
Address and port, username and password, HTTP CONNECT or SOCKS5, remote hostname, TLS 1.2+, exit IP, and a control response through the proxy.
Deep HTTP and SOCKS5 check
Advanced proxy checker: speed, quality, and leaks
Run a quick connectivity check or a complete test with three independent samples, a transparent quality score, exit-IP stability, popular-site access, and a local browser-fingerprint review.
Live connectivity check
Server-side checkquick or detailed
Paste proxy credentials
One proxy or a list: one proxy per line, without IP-change URLs or notes.
Credentials are not stored. The list is used only for this request and cleared immediately after submission.
What the checker verifies
Not just an open port, but the full route to a secure control page.
Address and port
DNS and TCP connection
Authentication
Username, password, and protocol
HTTPS tunnel
CONNECT and TLS 1.2+
Exit IP
Address in the control response
Important for IP allowlisting
This check runs from our server, not your device. A proxy restricted to your public IP can fail here — use username/password or test it from the allowlisted device.
Browser fingerprint and leaks
Shows what a website can see beyond the IP: Canvas, WebGL, screen, language, timezone, and WebRTC. Runs only when requested.
Canvas, WebGL, and WebRTC are processed only in this browser. They are not sent to the server, stored, or added to analytics. A same-origin request is used only to show the browser's current IP.
HTTP · SOCKS5 · HTTPS
A check without guesswork
See what passed, where the connection stopped, and what to verify next.
02
Show the exact cause
When a check fails, the result identifies the stage: format, DNS, port, authentication, protocol, TLS, or control request.
03
Score quality transparently
Three samples produce availability, median latency, jitter, and exit-IP stability. A separate incompressible download estimates current transfer performance, while website tests use a fixed safe allowlist.
Practical guides
From a successful check to a correct setup
Use these concise guides to choose a protocol, prepare credentials, and handle retries without unnecessary load.
Common questions
Quick answers about formats, privacy, and reading the result correctly.
Which credential formats are supported?
Use HOST:PORT, HOST:PORT:USERNAME:PASSWORD, USERNAME:PASSWORD@HOST:PORT, or a URL beginning with http:// or socks5://. Submit one proxy without extra notes.
Can I append an IP-change URL to the password?
No. An IP-change URL is a separate credential. Appending it with | changes the password sent to the proxy, so authentication will be rejected.
Why can IP-allowlisted access fail here?
The check runs from the MobiProxyDesk server, not your computer. A proxy restricted to your external IP can work for you while failing this server-side check.
Are the submitted credentials stored?
No. They are used for one test request, are not added to an account, and are removed from the form field immediately.
Does the checker measure proxy speed?
Deep mode downloads a bounded 128 KiB control payload through the secure tunnel. This is a useful current transfer estimate from our server, not the line's maximum bandwidth or a guarantee for your device.
What does the proxy-header signal mean?
It only reports characteristic headers in the request that reached the control page through the proxy. The signal does not guarantee anonymity or prove an original-IP leak by itself.
Mobile proxies
Registration is open
Create an account, choose a plan, and use an available balance top-up method in the portal.