Catch DNS changes before they break a client's site
Track A, MX, NS, and TXT records across every domain and get alerted when something changes or breaks.
What is DNS monitoring?
DNS monitoring continuously checks a domain's DNS records, such as A, MX, NS, and TXT, and alerts you when they change or stop resolving. SiteGuard Monitor watches DNS across all your client domains so you catch misconfigurations, expired delegations, and unexpected record changes that can take a site or email offline.
DNS is the quiet single point of failure behind every website and inbox. One wrong record, an expired delegation, or an unexpected change can take a client offline instantly. SiteGuard Monitor watches DNS records across your domains and flags problems before they turn into outages.
The problem: DNS breaks silently
DNS changes don't announce themselves. A migration goes sideways, a record gets edited, or a delegation lapses, and suddenly the site won't resolve or email stops flowing. By the time anyone notices, the damage and the client frustration are already done.
How SiteGuard solves it
SiteGuard records each domain's DNS configuration and watches for changes and resolution failures, alerting you when something shifts. You get early visibility into the kind of problem that's otherwise invisible until a site goes dark.
- Tracks key record types across each domain
- Alerts on record changes and resolution failures
- Email and Discord notifications
- Centralized view across all clients
What gets checked
SiteGuard queries the records that matter most for keeping a site reachable and email deliverable, surfacing issues that often hide until they cause a visible outage.
- A and AAAA records for site reachability
- MX records for email routing
- NS records and delegation health
- TXT records used for SPF, DMARC, and verification
Example workflow
Add a domain and DNS tracking starts immediately.
- Add the client domain to your dashboard
- Run a scan to capture the baseline DNS config
- Get alerted on record changes or resolution problems
- Include DNS health in the branded monthly report
Why agencies use it
DNS problems are some of the hardest for clients to diagnose and the easiest to blame on the agency. Monitoring gives you early warning and a clear record of what changed, turning a panic into a quick, confident fix.
- Spot misconfigurations after migrations or edits
- Get early warning of potential hijack or tampering
- Reduce time spent diagnosing mystery outages
- Reassure clients their setup is being watched
Safe, passive lookups
DNS monitoring uses standard public DNS lookups, the same queries any resolver performs. It's entirely passive and read-only, with no impact on the domain or its hosting.