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Feature

Multi-channel alerts

Six notification channels, configurable thresholds, and severity-aware delivery so you only get paged for things that actually matter.

Channels

Email

Delivered via Resend. Available on every plan.

Slack

Incoming Webhooks. Available on Pro and Agency.

Microsoft Teams

Connector webhooks. Available on Pro and Agency.

Discord

Channel webhooks. Available on Pro and Agency.

PagerDuty

Events API v2 — fires real incidents. Agency plan.

Generic webhook

JSON POST to any HTTPS endpoint, with optional HMAC signing. Agency plan.

Configurable thresholds

Pick which "X days before expiry" milestones fire alerts. Defaults are 30, 14, 7, 3, and 1 day.

  • Free: 1-day threshold only
  • Hobby: 14, 7, 3, 1 day
  • Pro & Agency: 30, 14, 7, 3, 1 day — fully configurable

What triggers an alert

  • SSL expiry — at each configured threshold.
  • Domain registration expiry — at each configured threshold.
  • Certificate change — rekey, issuer swap, SAN drift, weakened crypto, chain regression. See change detection.
  • Self-signed certificate — fires once per 24 hours at critical severity.
  • Check failure — when Xpiry can't reach the host or the handshake fails. Includes the configured port so you can fix it without guessing.
  • Monitoring broken — after five consecutive failed checks of any type, with a 24h debounce.

Smart deduplication

Xpiry tracks recent alerts per type and won't re-fire the same one inside its debounce window — typically 24 hours. So a flapping endpoint won't fill your inbox, and a one-day-out reminder won't repeat itself every six hours.

Start monitoring in minutes

Free for one domain. No credit card required.

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See the full feature list or pricing.