DNS Monitoring Catch Changes Instantly
Track DNS records across all your client sites and get alerted the moment something changes. Detect unauthorized modifications, failed migrations, and misconfigurations.
A (Address)
CNAME (Canonical Name)
MX (Mail Exchange)
TXT (Text)
DNS Changes Detected
MX (Mail Exchange)
10 smtp.oldhost.net→10 mail.google.com
TXT (Text)
v=spf1 include:_spf.google.com ~all
Why DNS Monitoring?
Protect against silent DNS failures
DNS changes can break email delivery, redirect traffic to the wrong server, or indicate domain hijacking. For agencies managing client domains, undetected DNS changes are a ticking time bomb. Sentinel watches every record and alerts you instantly.
- Track A, AAAA, CNAME, MX, NS, TXT, and SOA records
- Automatic baseline snapshots for change detection
- Instant alerts when any record changes unexpectedly
Features
Complete DNS visibility
7 Record Types
Monitor A, AAAA, CNAME, MX, NS, TXT, and SOA records. Full coverage of your client's DNS configuration.
Baseline Snapshots
We take a snapshot of your DNS records when monitoring starts. Every check is compared against this baseline.
Change Detection
Instantly detect when a DNS record is added, removed, or modified. No change goes unnoticed.
Instant Alerts
Get notified via email, SMS, Slack, or webhooks the moment a DNS change is detected.
Incident History
Every DNS change creates a detailed incident record showing exactly what changed, when, and the old vs new values.
Bundled with Uptime
DNS monitoring runs alongside your uptime checks. Enable it when creating a monitor—no extra configuration needed.
FAQ
DNS monitoring questions
Which DNS records does Sentinel monitor?
How will I know when a DNS record changes?
Why does an unexpected DNS change matter?
Can I monitor DNS for all of my client domains?
Does DNS monitoring work alongside other checks?
Is there a free trial?
Never miss a DNS change again
Start monitoring DNS records across all your client sites. 14-day free trial, cancel anytime.