DNS Monitoring

Why DNS Monitoring Matters

DNS records are often the last thing administrators think about and the first thing that breaks when something goes wrong. A single accidental record deletion, an unauthorised nameserver change, or a hosting provider outage can take a website offline, stop email delivery, or expose a domain to hijacking — all without any immediate alert to the domain owner. DNS monitoring closes that gap by watching your records continuously and notifying you the moment anything changes.

What ReviewMyDNS Monitors

• A and AAAA records: Changes to IP addresses indicate server moves, load balancer updates, or potential hijacking. An unexpected A record change is a serious security signal.
• MX records: A modified MX record can silently redirect all inbound email to an attacker's server. MX changes are among the highest-severity DNS events to monitor.
• NS records: Nameserver changes indicate a domain has been transferred or delegated to a new provider. Unauthorised NS changes are a hallmark of domain hijacking.
• TXT records: Changes to SPF, DKIM, or DMARC records can break email authentication and allow spoofing. Monitor these if email deliverability is business-critical.
• CNAME records: An unexpected CNAME change can redirect traffic to a wrong or malicious destination.

Alert Delivery

Alerts fire immediately when a monitored record changes value, is deleted, or when a nameserver becomes unresponsive. Notifications are delivered by email. Pro and Team plans support webhook and Slack integration for routing alerts into existing incident management workflows.

Monitoring Frequency

Free tier monitors domains hourly. Pro plans support monitoring intervals down to every 5 minutes, giving near-real-time detection of changes. For high-value domains where uptime is measured in revenue, 5-minute monitoring provides actionable alerts before most users notice a problem.

Setting Up Monitoring

Add a domain to your monitoring list, select the record types you want to watch, and configure alert recipients. ReviewMyDNS takes a baseline snapshot of the current record values and alerts you only when those values change — so you will not receive false alerts for expected propagation if you pause monitoring before planned maintenance.