FREE SSH HOST KEY & FINGERPRINT LOOKUP

SSH Fingerprint Lookup

Retrieve and verify SSH fingerprints, host keys and supported key algorithms for any public SSH server. This free SSH Fingerprint Lookup tool helps validate server identity and security settings before connecting with SSH, SFTP, SCP or rsync.

The tool automatically retrieves the server's public host key, calculates its SHA256 fingerprint and identifies the host key algorithm in use. This makes it easy to compare fingerprints, validate infrastructure changes and detect potential man-in-the-middle risks.

What does this SSH Fingerprint Lookup do?

When an SSH client connects to a server, it relies on the server's host key fingerprint to verify identity. If the fingerprint changes unexpectedly, it may indicate a configuration change, server rebuild or potential security issue.

This tool connects to the target SSH service, retrieves the advertised host key and calculates the corresponding fingerprint. It also identifies the host key algorithm and provides additional details about the key being used.

Who is this SSH Fingerprint Lookup tool for?

The tool is designed for system administrators, DevOps engineers, developers, security professionals and IT teams responsible for managing SSH and SFTP infrastructure.

It is especially useful when deploying new servers, validating SSH host keys, troubleshooting SSH warnings, documenting infrastructure or verifying server identity before granting access to users and automation systems.

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