Monitors
Security
Watch for credential breaches and email/IP blacklisting.
These monitors watch your reputation and exposure — things that don't show up in an uptime check but can quietly damage deliverability and trust.
Data breach
Watches whether an address or domain you care about appears in a known data breach, and surfaces new findings so you can act.
- A list of known breaches with the date each was added.
- Preset: new breach within a window (for example, the last 48 hours) — so you're alerted to fresh exposure, not old history.
Blacklist (RBL)
Checks whether your mail server IP or domain appears on common blocklists (RBLs) that mail providers consult before accepting mail.
- A providers table showing each blocklist's verdict.
- Preset: listed on one or more blocklists.
Getting blacklisted can silently kill email deliverability long before you notice bounced messages. This monitor turns that into an alert you can act on.