Test and Test All measure TCP round-trip time to the server address and port — the same node RTT most clients show (v2rayNG, Hiddify, Nekoray, etc.).
If the node blocks raw TCP connects (some CDN/WAF setups), the app falls back to a short proxy-path probe through a temporary local SOCKS port.
| Display | Meaning |
|---|---|
123 ms |
Successful measurement |
timeout |
No response within 10 seconds |
— |
Test in progress or not run yet |
After Test All, results are saved with your server list.