Know before your users do
Free email alerts for any of the 424 services we track — sent the minute our checks disagree with the vendor’s green dot, and again when it recovers.
Real outages only
Alerts fire when our scoring engine confirms an incident from multiple signals — official feed, independent probe, user reports. A 401/403/429 anti-bot response is flagged as probe-blocked, never as down.
Recovery included
You get one email when the incident opens and one when it resolves. No repeats every few hours, no marketing, ever.
One click out
Double opt-in on the way in, one-click unsubscribe link in every email on the way out.
Need faster probes, Slack delivery, or alerts for a whole stack? See the Pro plan →