DNS Monitoring That Detects Record Changes, Hijacks, and Domain Expiry
Your DNS is the front door to everything you run. Uptimehub watches your records for tampering and drift, and tracks your domain expiry, so a quiet change never routes your traffic somewhere it should not go.
Checked from regions with auto-retry. No single-location false alarms.
All systems operational. Steady pulse across every region.
api.example.com returned no response from all 6 regions. Auto-retry confirmed the outage, then we alerted your team.
api.example.com is back up. The incident is logged to your status page history automatically.
90-day uptime · branded · your domain
Live demo · drive it, no signup needed
In short
DNS monitoring continuously resolves your domain records and compares them against the values you expect, alerting you when anything changes unexpectedly. Uptimehub queries your A, AAAA, CNAME, MX, TXT, and NS records from 6 global regions and flags unauthorized edits, propagation drift, or signs of a hijack the moment a record no longer matches its baseline. It also tracks your domain registration expiry so the domain itself does not silently lapse. Alerts arrive in seconds through Slack, email, SMS, or webhook, and every lookup is read-only, so monitoring never modifies your zone. Checking from multiple regions also surfaces inconsistent or poisoned resolution that a single-location check would miss.
What you get
DNS monitoring for developers, SaaS teams and agencies
Detects record changes
Baseline your A, MX, TXT, and NS records and get alerted whenever a value changes without your say-so.
Spots hijacks and drift
Multi-region lookups reveal poisoned or inconsistent resolution and possible DNS hijacking before it does damage.
Domain expiration monitoring
Track your registration date and get warned in advance so the domain never expires out from under you.
Read-only and safe
Uptimehub only resolves and reads your records, never editing your zone, so monitoring carries no risk.
How it works
From URL to alert in four steps
Add your domain
Enter the domain and the record types you want watched, then confirm the expected values.
We check from 6 regions
Uptimehub resolves your records worldwide and compares them to their baselines.
Get alerted on change
Any unexpected record change, drift, or approaching expiry triggers an instant alert.
Review and act
Confirm the change was intended or revert a hijack, then update your baseline in a click.
FAQ
Questions buyers ask about DNS monitoring
DNS monitoring continuously resolves your domain from outside your network and compares the answer against what you expect. It alerts when a record changes, disappears, resolves to an unexpected address, or when a nameserver stops responding. Because DNS sits in front of everything else, a fault here takes the whole service offline no matter how healthy the servers are.
Manually you would query each record with dig or nslookup against several resolvers and compare the output to a known-good list. That works once and is useless as a routine, because changes happen at 2am. An automated DNS check stores the expected values and tells you the moment a live answer stops matching them.
Yes, and it is one of the more common causes of a total outage. If the A record is wrong, the nameservers stop answering, or the domain registration lapses, visitors never reach your server at all. Server-side health checks report everything as normal throughout, because the requests are not arriving.
DNS hijacking is when an attacker changes your records, usually through a compromised registrar or hosting account, to point visitors and email at infrastructure they control. It is often invisible from the inside. External monitoring that compares resolved values against expected ones catches the change within minutes rather than after customers report it.
Every few minutes is appropriate for critical A, CNAME, and MX records, because a wrong answer means a full outage or intercepted mail. Domain and registration expiry only needs a daily check, but it needs to be watched with a long warning window, since recovering a lapsed domain is far harder than renewing one.
Last updated July 2026
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Start monitoring in two minutes
Add a URL or endpoint and Uptimehub checks it every minute from 6 global regions, alerts you in seconds, and updates your branded status page. Read-only checks that never touch your servers.