If customers in one region are seeing errors while your status page says everything is fine, this is almost certainly why — and it's not a bug in your monitoring, it's the default behavior of how most status pages are built.
Most status pages run health checks from a single location — often a single cloud region close to where the monitoring vendor's own infrastructure lives. That check asks one question: “can I, from here, reach your service?” If the answer is yes, the page shows green.
But “reachable from one place” and “working for every customer” are different claims. A regional outage — a bad deploy that only affects your Asia-Pacific infrastructure, a CDN edge node failing in Europe, a database replica falling over in one availability zone — can leave 100% of your customers in that region broken while the single check, run from somewhere else entirely, passes cleanly.
It's common enough that a small industry exists just to catch it: third-party monitoring firms that watch other companies' services independently, specifically because vendors' own status pages miss regional and partial outages.
IsDown reported 104 incidents in April 2026 that vendors never reported on their own status pages. Source: IsDown.
If a company big enough to build a business around catching this gap exists, the gap is real, and it's not going away on its own.
The fix is checking from more than one place, and — this is the part most tools get half right — showing the per-region result, not just using multiple regions internally and then collapsing everything back down to a single green or red badge.
A status page that's actually honest about regional health needs:
Not one location pretending to represent the whole world.
“Degraded — Asia-Pacific” instead of one badge that hides which region is affected.
If the regional view is buried in an advanced dashboard, nobody sees it during the incident that matters.
realuptime status has four live probe regions — US-East, US-West, Europe, and Asia-Pacific — and shows each region as a separate reading on the public page. When a region is confirmed down, it drafts an incident automatically instead of waiting for someone to notice and write it by hand.