Simple test to get a rating for a HTTPS website from ssllabs.com, for use in check_mk
Use https://badssl.com/ for test cases.
sudo npm i -g
nodecheckssl host.com n
The check will return OK for any A rating, WARN for any B rating and CRIT for any other rating.
The test will return CRIT if any certificate will expire in less than n days. Default is 7.
This whole thing is not very sophisticated and will fail miserably if given bad parameters and most likely in a lot of other cases.