How to test Heartbleed Bug

What is SSL Heartbleed Bug in simple English?

Basically it is a program bug/vulnerability in the SSL/TLS encryption that is widely use by most of the Internet applications such as website, VPN, email, etc. This allow the attacker to read/steal the your communication information. For more detail, you can check out and

SSL heartbleed bug

How to test Heartbleed Bug

Below are some of the useful links that allow you to check whether your HTTPS website is vulnerable to Heartbleed bug

Qualys SSL Labs:

Heartbleed test:

Critical Watch Heartbleed Tester:

LastPass Heartbleed bug test:

Heartbleed checker: