[CharlesW]

> You're looking for Zyte (formerly ScrapingHub).

Are you sure? it seems focused on scraping/crawling/data extraction, and I'm not seeing any built-in capabilities to (for example) simply trigger a callback when a resource changes.

[biggunz]

changedetection.io supports filters and triggers which all can result in a notification to a JSON call or anyone of the existing hundreds of other services (email, discord, etc)