DNS Alerts

Understanding alerts

Every DNS change OneDollarDNS detects is recorded as an alert. Alerts tell you exactly what changed, on which host, and when — with the full before and after values.

What triggers an alert

An alert is created any time a DNS check produces a snapshot that differs from the previous one for a given host and record type. Three types of changes are detected:

Added

A record type or value appeared that wasn't present in the previous snapshot.

Removed

A record type or value that existed previously is no longer returned by the nameserver.

Modified

A record of the same type changed value — for example, an A record pointing to a new IP address.

Alert notifications

When changes are detected, OneDollarDNS immediately sends an email notification to the address associated with your account. The email includes:

The affected domain and host name
The record type (A, MX, TXT, etc.)
The change type (added, removed, or modified)
The previous value (for removed and modified records)
The new value (for added and modified records)
The time the change was detected

If a single DNS check detects multiple changes across multiple hosts or record types, they are grouped into a single email to avoid inbox noise.

Want Slack alerts or multiple recipients?

The Smart Alerts add-on lets you route alerts to a Slack channel or additional email addresses, per domain.

Viewing alerts in the dashboard

Alerts appear in two places:

Dashboard — a summary of recent alerts across all your domains, giving you a quick overview of any active changes.
Domain detail page — a full list of alerts for a specific domain, grouped by host. Unacknowledged alerts are highlighted so they stand out.

Each host displays a status indicator:

Healthy — checked recently, no unacknowledged alerts.

Alert — has one or more unacknowledged DNS changes.

Pending — waiting for the first check to complete.

Acknowledging alerts

Once you've reviewed a change, you can acknowledge it to remove it from the active alert view. Acknowledging an alert means you've seen and noted the change — it doesn't delete the record, which remains in the full history.

Two acknowledgement options are available on the domain page:

Acknowledge — marks a single alert as reviewed.
Acknowledge all — clears all unacknowledged alerts for the domain at once.

Alert history

Every alert is permanently recorded, giving you a full audit trail of all DNS changes to your domains. Acknowledged alerts remain accessible in the domain view, giving you a complete timeline of changes even after they've been reviewed.