What Can this site do?

Monitor / detect a web page changes continuously, at least ten minutes' intervals, on cloud.
Send email alerts or phone alerts (under development) if a web page changes or a specified keyword appears.
See also FAQ page.

Give me the scenarios / use cases please ?

The application scenario is very wide. Theoretically supports detecting any publicly available web page. (Detection of web pages that require login to view is under development)

Differences and advantages compared to other websites?
Why should I choose you ?

Main advantages: