FREE ONLINE SFTP SERVER TEST TOOL

SFTP Connection Test Tool

Test and troubleshoot SFTP servers directly from your browser. Verify DNS resolution, SSH connectivity, host keys, fingerprints, authentication and SFTP subsystem availability in seconds.

This free SFTP testing tool helps system administrators, developers and IT teams quickly identify connection problems, authentication issues and SSH configuration errors without installing any software.

What does this SFTP connection test check?

This SFTP Connection Test Tool performs a series of real-world checks against your SFTP server. It verifies that the hostname resolves correctly, that the SSH port is reachable and that the server responds with a valid SSH banner.

When credentials are supplied, the tool can also verify user authentication, host key information, SSH fingerprints and the availability of the SFTP subsystem. These checks help identify common configuration, firewall and credential-related issues.

Who is this SFTP test tool for?

This tool is designed for system administrators, DevOps engineers, developers, hosting providers and IT support teams responsible for managing SFTP servers and secure file transfer workflows.

Typical use cases include troubleshooting failed SFTP connections, validating SSH server configurations, verifying login credentials, checking host key fingerprints and confirming that the SFTP subsystem is available and functioning correctly.

Tests performed

  • DNS Resolution
  • TCP Connectivity (Port 22)
  • SSH Banner Detection
  • SSH Host Key Detection
  • SSH Fingerprint Verification
  • SFTP Authentication Test
  • SFTP Subsystem Availability
SFTP hostname:
Username:
Password:

To test your site, enter:

  • Domain name
  • Optionally username
  • Optionally password


Click Run test to verify your host