github.com/colinodell/go-check-ssl
Simple command line utility to check the status of an SSL certificate.
Basically, it attempts to establish a TLS connection to a server and reports back useful info about the cert's status.
Either build it yourself or grab a pre-compiled download from the Releases page.
To check a certificate, simply run:
./check-ssl [server]
Example of allowed arguments include:
example.comexample.com:443https://www.example.com:443/foo/bar93.184.216.34By default, it'll resolve the IP of the given domain and test against that server. But you can also use this tool to check other servers by providing two arguments: the server to test and the SNI to use. For example:
./check-ssl [server] --sni=[SNI domain]
./check-ssl example.com --sni=foo.example.com
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