How it works
Three regions. Two must agree. Then we tell you.
Here's exactly what happens between your site going down and your phone buzzing, and why you won't get woken up for nothing.
- 1Add your site
Paste a URL. Optionally add keywords that should, or shouldn't, be on the page.
- 2Three regions check it
Probes in North America, Europe and Asia, each on a different cloud provider, visit your site every 30 seconds (every minute on Starter).
- 3One failure? We re-check
If a single region sees a problem, the other two check again straight away. Nothing is sent yet.
- 4Two agree? You're alerted
When at least two of three regions fail, you get an alert with the reason: timeout, error code, blank page or missing keyword.
- 5It recovers, we tell you
As soon as two regions see it healthy again, you get a recovery message with the total downtime.
An outage, minute by minute
What a real incident looks like
A checkout page starts serving blank pages at 14:02. Here's what Uptriad does.
- Routine check, all healthy
Virginia, Frankfurt and Singapore all get the full page in under 200 ms.
- Frankfurt gets a blank page
200 OK, but 0 bytes. One region isn't enough, so no alert yet. The other two re-check immediately. - Singapore confirms it. Alert sent.
Two of three regions agree. Your team gets “checkout.example.com is down: blank page (0 bytes)” in Slack and by email.
- Checks continue every 30 seconds
Your status page shows the incident, and the dashboard logs every check from every region.
- Back up. Recovery sent.
Two regions see the full page again. “checkout.example.com is back up. Down for 1 min 26 s.”
Inside every check
What we look at, every 30 seconds
DNS, connection & TLS
Does the domain resolve? Can we connect? Is the certificate valid, trusted and for the right hostname?
Status & speed
The status code you expect, redirects that go where they should, and a response inside your time limit.
The page itself
Real content, not a blank page. The keywords that must appear, and none of the ones that mustn't, like Error.
Where we check from
Three continents, three providers
Spreading probes across providers as well as places means one cloud's outage can't fake yours.
Virginia, US
Closest to most US and Latin American visitors.
Frankfurt, DE
Covers the UK, EU and Middle East.
Singapore, SG
Covers Asia and Australia.
Safe by design: probes only ever visit public websites. They refuse private, internal and cloud-metadata addresses, and re-check after every DNS lookup, so a monitor can't be used to reach inside anyone's network.
Ready when your site isn't.
Add your first monitor in under a minute. Free for 14 days, no card needed.