Threat Level: green Handler on Duty: Rob VandenBrink

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Testssl project has announced the release of testssl 2.6. is a free command line tool which checks a server's service on any port for the support of TLS/SSL ciphers, protocols as well as recent cryptographic flaws.


Here is some examples of how to use

First you have to download the script from:

Running the script without any option will run all the tests:

If you like to check for a specific vulnerability such as heartbleed you can run the following option -B

To check the supported ciphers suites you can use the –f option:

./ –f

Another neat option is –H which will give you some information about the http header and it will mark the security features

./ –H



60 Posts
ISC Handler
Sep 20th 2015
There's also Qualsys ssl check (

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