The two main questions I always get asked about jailbreaking are, “How do I jailbreak?” and “Can my iPhone even be jailbroken?” Because a jailbreak usually has to be manufactured for each new release of iOS, there’s a good chance that certain version of iOS are jailbreak friendly while others are not. For instance, there’s no public jailbreak for iOS 6 yet.
So, how do you check to see if the iOS device you use is jailbreakable or not?. You could search Google for a few minutes trying to find the right tool, or you could visit a handy web app called JailbreakStatus.