3 ms·I’ve seen alerting based on the number of Twitter mentions tooby mlazowik 5y agoI’ve seen alerting based on the number of Twitter mentions toocolpabar 5y agoI think this is how downdetector works, it just looks for tweets that are complaining about something not working.PaulBGD_ 5y agoI'm fairly confident they just count a site as down based off the popularity of the page.