You work as an IT security auditor hired by a law firm in Boston to test whether you can gain access to sensitive information about the company clients. You have rummaged through their trash and found very little information. You do not want to set off any alarms on their network, so you plan on performing passive foot printing against their Web servers. What tool should you use?
For performing passive footprinting against web servers, Netcraft is an ideal tool. It allows you to passively gather information about the target web servers without directly interacting with them, thus reducing the risk of raising any alarms. Netcraft can provide detailed information about websites, including hosting details, SSL certificates, and technologies used, all of which are useful in understanding the target's infrastructure.
Netcraft allows to do passive reconnaissance.