TLS certificates and protocols

Inspect HTTPS, mail, FTPS and supported database services using direct TLS or a protocol-specific TLS request. Choose HTTPS for a website, or set a custom port and mode. Enable protocol probes below to test individual TLS versions. No login, email submission, file transfer or database query is attempted.

Service preset (suggested port and mode)

Hostname or public IP

Port (custom ports supported)

TLS mode

Expected TLS hostname / SNI (optional)

Defaults to the target hostname. Set this when connecting to a specific public IP.

Probe individual TLS versions (additional connections)

FTP checks inspect the control connection only; no data channel is opened. PostgreSQL and MySQL/MariaDB stop after TLS negotiation, before authentication. SFTP/SSH and SQL Server/TDS are not supported. Other databases can use Direct TLS only when their endpoint starts TLS immediately.