Scrape data and send updates in android

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Android

So there is a website which contains some information. I am building an Android app that will show some specific information of that website and whenever the website gets some update, my app will automatically receive a notification about that update, and also UI gets updated.

What I have tried:

I am thinking of a method to scrape that website and store that data in Firebase, then load that data from Firebase to the Android app. I will set some automatic method to scrape continuously after some interval and update that data to Firebase and use FCM to send notifications to apps.

I am asking if this is the right way or if there is another simpler way to do so. Any high-level approach is appreciated.

And yes, I have permission to scrap that website.