Outage radar
Individual status pages tell you when one service is down. The radar watches all of them at once — so when many fail together, it can point at the likely shared cause underneath: a cloud region, a CDN, a platform everyone depends on.
Checking…
Infrastructure dependency map
Mapping dependencies…
Dependency relationships are hand-curated approximations based on public reporting — many services run on more than one provider, and architectures change. This is a model for explaining correlated outages, not an authoritative diagram.