1Password Watchtower is a service that identifies websites that are vulnerable to Heartbleed, and will suggest which sites need to have their passwords changed.
What is Heartbleed?
Heartbleed is a problem in OpenSSL, a software library used by most websites to secure your communication. Read our Heartbleed blog post for more details.
Check this website
Enter a domain name (e.g. agilebits.com) into the field below. The 1Password Watchtower service will check the status of the website and advise you on steps you should take.