Get a message as soon as a page works again?

Is it somehow possible with any program to get a message as soon as a page goes again?

I wanted to get the PS5 on Amazon, but since many bots grabbed the consoles and the page was down continuously I didn't get one.

I'm on the PC but I don't feel like reloading the pages again and again

Amazon down? Not really, I have the bandwidth full here and yet I always get to Amazon immediately in three tabs at the same time.