WhatWeb can be exceptionally stealthy and fast and supports an aggression level to control the trade off between speed and reliability. When you visit a website in your browser, the transaction includes many hints of what web technologies are powering that website. Sometimes a single webpage visit contains enough information to identify a website but when it does not, WhatWeb can interrogate the website further. The default level of aggression, called ‘passive’, is the fastest and requires only one HTTP request of a website. This is suitable for scanning public websites. More aggressive modes were developed for in penetration tests. WhatWeb Scanner Online is a port of the software into our web application scanners portal, and is available for free.
WhatWeb Online Web Scanner is now available in our penetration testing tools online scanners.
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