It's not as simple as you'd think. Monitoring 1 website is easy, monitoring 1M websites and gathering results in realtime from stations around the globe to make

It's not as simple as you'd think. Monitoring 1 website is easy, monitoring 1M websites and gathering results in realtime from stations around the globe to make a proper decision is a different thing. Significant bandwidth, and CPU are needed to achieve this, not to mention relying on third party services like twilio and sendgrid to notify customers and that cost money too.