John works as a professional Ethical Hacker.

John works as a professional Ethical Hacker. He has been assigned the project of testing the security of www.we-are-secure.com. In order to do so, he performs the following steps of the preattack phase successfully:

•Information gathering

•Determination of network range

•Identification of active systems

•Location of open ports and applications

Now, which of the following tasks should he perform next?