IsDown was built out of frustration at 4 AM. Nuno Tomas, founder of IsDown, was on-call when a PagerDuty alert woke him up. After 30 minutes of debugging, he realised the problem wasn't his code, it was the cloud provider. They had posted an outage on their status page, but nobody on the team was watching it. That night, he decided there had to be a better way. Founded in 2020, IsDown is a status page aggregator that gives IT, DevOps, and engineering teams a single source of truth for all their third-party dependencies. Instead of juggling dozens of vendor status pages, teams monitor everything from one dashboard and get alerted within seconds when something breaks. Today, IsDown monitors 6,000+ cloud and SaaS services, has performed over 1 billion status checks, detected 520,000+ outages, and sent over 5.2 million notifications. It's trusted by 500+ companies across SaaS, MSPs, DevOps agencies, schools, and enterprise IT teams. What makes IsDown different: it monitors official vendor status pages directly, not just crowdsourced reports, and combines that with early detection signals that catch outages up to 2.2 hours before vendors acknowledge them. In January 2026 alone, IsDown detected 101 incidents that vendors never officially reported. The goal has always been simple: your team should never be the last to know.