Alert emails

The alert you can trust is the one that's real. We confirm before we email, we say what's wrong in plain English, and we tell you when it's over — nothing else.

Why you'll never get paged over a blip

One failed check never alerts anyone. When a check fails, the app goes suspect: we re-check faster (every 30 seconds) and ask our other regions to look too. Only when two regions independently confirm the failure do we open an incident and email you. Same discipline on the way back up: one good response starts recovery, a second confirms it, then you get the all-clear.

If a site flaps — down, up, down again within minutes — we hold repeat alerts for 15 minutes rather than machine-gunning your inbox.

The emails we send

[CRITICAL] yourapp.com is DOWN — confirmed outage, with what we observed and when.
[RESOLVED] yourapp.com is back up — recovery confirmed, with the outage duration.
[WARNING] / [CRITICAL] SSL expiry — 14 days out, escalating at 3.
[WARNING] / [CRITICAL] domain expiry — 30 days out, escalating at 7.
Deep-monitor alerts — a cron heartbeat went silent, or a self-reported check (database, Stripe webhooks) is failing. These carry an INSIDE badge since they come from your app's own signals, plus a resolved follow-up.
[HEADS UP] — you created an API key but no signal ever arrived. Sent once, after 24 hours; catches the integration that never shipped.

That's the whole list. Security findings never email you — they live in the dashboard, on your schedule, not your inbox.

Filtering alerts in your inbox

Every subject line starts with a severity tag — [CRITICAL], [WARNING], [RESOLVED], [HEADS UP] — precisely so your mail client can filter on them. All alerts come from one address:

[email protected]

A setup that works well: [CRITICAL] emails hit your phone (a VIP rule, or forwarded to SMS via your carrier or a service like Twilio), everything else stays in the inbox for working hours. In Gmail: Filter → From [email protected] + Subject [CRITICAL] → "Always mark as important". In Apple Mail, add the address to VIPs and give VIPs a distinct notification sound.

Also worth doing once: add [email protected] to your contacts so the first real outage email of your life doesn't land in spam.

Where alerts go

Alerts go to your account email — the one you signed up with, shown on the Settings page. A separate alerts address (and channels like Slack) are on the roadmap; today it's email, done carefully.