- Use a “HeartBleed Checker” site, like this one: https://lastpass.com/heartbleed/
- Or this one: http://filippo.io/Heartbleed/
- Or the Chrome heartbleed extention, if you use the Chrome browser: https://chrome.google.com/webstore/detail/chromebleed/eeoekjnjgppnaegdjbcafdggilajhpic to check if websites that you use are affected.