DNS Change Detection - Get Instant Alerts When Records Change
Never be caught off guard by DNS changes again. DNSMonit compares periodic snapshots of your DNS records and sends instant notifications through email, Slack, Discord, or webhooks the moment any record is added, removed, or modified.
What is DNS Change Detection?
DNS change detection is the process of identifying modifications to your domain's DNS records by comparing the current state against a known baseline. Every time DNSMonit scans your domain, it takes a complete snapshot of all DNS records -- A, AAAA, MX, NS, TXT, CNAME, SOA, and CAA -- and compares it to the previous snapshot. Any differences trigger an immediate alert with full details of what changed.
This approach is critical because DNS changes often happen without direct notification. Whether a colleague updates a record through your registrar's panel, an automated deployment modifies infrastructure, or a malicious actor compromises your DNS, the result is the same: records change silently. Without a DNS change notification system in place, you might not discover the modification until users report problems or email stops being delivered.
DNSMonit's change detection goes beyond simple record value comparison. It tracks changes to TTL values, the addition of new records, the removal of existing records, and modifications to record priorities and weights. Every change is logged with precise timestamps, creating a complete audit trail of your domain's DNS history.
How DNS Change Detection Works
Baseline Snapshot
When you add a domain, DNSMonit takes a complete snapshot of all DNS records from your authoritative nameservers. This becomes the baseline against which all future changes are measured.
Periodic Comparison
At regular intervals (every 15 minutes on the Lifetime plan, daily on the Free plan), DNSMonit queries your nameservers again and performs a detailed diff against the most recent snapshot to identify any changes.
Alert & Log
When differences are found, DNSMonit sends an alert through your configured notification channels and logs the change with the old value, new value, and timestamp for your records.
Types of DNS Changes Detected
Records Added
New DNS records appear that did not exist in the previous snapshot. Common during migrations, new service integrations, or domain verification processes.
Records Removed
Existing records disappear from the zone. This can indicate accidental deletion, zone transfer issues, or unauthorized access to your DNS management panel.
Records Modified
Record values, TTL settings, or priorities change. This includes IP address changes, MX priority adjustments, updated TXT record content, and TTL modifications.
Notification Channels
Available on all plans. Detailed change reports delivered to your inbox.
Slack
Lifetime plan. Get alerts in your team's Slack channels via webhook.
Discord
Lifetime plan. Push notifications directly to your Discord server.
Webhook
Lifetime plan. Send JSON payloads to any URL for custom integrations.
Why DNS Change Alerts Matter
Catch DNS Hijacking Early
DNS hijacking redirects your traffic to attacker-controlled servers. Change detection alerts you within minutes of any record modification, dramatically reducing the window of exposure.
Verify Intended Changes
When your team makes DNS changes, instant alerts serve as confirmation that modifications propagated correctly. Compare what was intended with what actually changed to catch misconfigurations early.
Maintain a Full Audit Trail
Every detected change is permanently logged with the old value, new value, and precise timestamp. This history is essential for compliance requirements, incident investigation, and root cause analysis.
Reduce Downtime
DNS misconfigurations are a leading cause of website and email outages. Instant DNS record change alerts let you respond in minutes rather than hours, minimizing the impact on your users.
Frequently Asked Questions
What types of DNS changes are detected?
DNSMonit detects three types of changes: records added (new records appear), records removed (existing records disappear), and records modified (values or TTL change). Each change is logged with timestamps.
How are change notifications delivered?
Email notifications are available on all plans. The Lifetime plan adds Slack, Discord, and custom webhook integrations. Notifications include the domain name, record type, old value, and new value.
Is change history stored?
Yes. The Lifetime plan includes full change history so you can track when and what changed over time. This is invaluable for troubleshooting and compliance auditing.
Never Miss a DNS Change Again
Set up DNS change detection in seconds. Add your domains, choose your notification channels, and let DNSMonit watch your records 24/7.