the lastpass.com/heartbleed tool states that my server is most likely vulnerable and that users should wait untill my cert has been replaced.
It seems that they check for certificate creation date, but i re-keyed my certs which means that they are newly created with a new key but still have the old information like the original creationdate from 2013.
Is there a way to check if a certificate has been rekeyed?
EDIT (clarification): If you have access to both certs you can tell the difference and compare it to the cert you see in the browser, but that's not possible for normal visitors to the site. If I browse to a website I want to be able to check if the cert has been replaced or re-keyed.