How to monitor a webpage specific number?

[xpertech]

There's a webpage which after successful login(username & password) then will display a number, is there a way to monitor this number if higher than specific value then will alert?

[mcapra]

Are you currently monitoring this website? If so, how?

What authentication mechanisms are being used by this website?

check_http can do regex matching on a page's content via the -r / --regex argument:

-r, --regex, --ereg=STRING
Search page for regex STRING

Assuming basic authentication credentials were provided via the -a / --authorization argument to handle the login, this would allow you to craft a regex that matches "values greater than a number".

[xpertech]

The steps are ...
1. Access to a webpage address
2. A login page display
3. Enter username and password
4. The page will generate and display a number

[cdienger]

Check out the web transaction wizard:

https://assets.nagios.com/downloads/nag ... ios-XI.pdf

It uses webinject(http://www.webinject.org) to create web requests and monitor the results.