SSLRobot - SSL/TLS Checker

SSLRobot - SSL/TLS Checker

Mac OS Developer Tools

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Quickly test the configuration of your SSL web server on the internet or local network to see if has been configured correctly and securely.

An overal grade is assigned to the server and details of the SSL/TLS setup are checked:

- Server and intermediate certificates

- Encryption Protocols

- SSL/TLS supported versions

- HSTS configuration

- Forward Secrecy

- HTTP/2 support

Warnings and errors are displayed for settings that require attention such as:

-Insecure SSL protocol versions that should be disabled

-Certificates using weak SHA1 hashes

-Missing intermediate certificates that require a separate download in the browser

-Weak encryption algorithms

The SSL settings of SMTP, IMAP and POP3 servers can also be checked by adding a port number to the host name.

A limited use trial version is available for download at

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What's New

New: The results of a test can now be saved to a file, emailed or printed
New: Now uses the local macOS root CA certificates allowing servers to be tested that use a company's own custom root CA certificate
New: Information about proxy configuration is shown in the Network section
Fixed: SSLRobot would fail to test servers that only supported ECDHE/GCM ciphers with TLS 1.2

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