Beginners guide to hacking and penetration testing (2017)
Alerts:
Another method of reconnaissance is to setup alerts. Google Alerts, and ChangeDetection are some examples of online tools that we can use to keep tabs on our target(s). Let's take a look at them
ChangeDetection: (http://www.changedetection.com)
ChangeDetection is a simple and free tool. Simply enter in the website to monitor and where to send the alert to. Once a change is made you will be emailed.
Google Alerts:
Google Alerts (https://www.google.com/alerts) is another free service that links into your Google account. You can create several alerts. When google finds a match to your keyword you will be sent an
email alert.