Stop DNS Hijacking Before Your Customers Notice
Your web servers are secure, but what about the routing layer? Get automated DNS change detection and zero-trust auditing to protect your domain infrastructure.
No credit card required.
01. The Threat
The Invisible Threat of DNS Hijacking
Most organizations spend millions securing their web apps, but leave the foundation of their digital presence unguarded. DNS Hijacking occurs when an attacker maliciously alters your records to route your traffic to a fraudulent website.
"Because a DNS hijack happens at the routing layer, your web application firewalls (WAF) and server logs will show absolutely zero signs of a breach, while your customers are actively being routed to a phishing site."
Without automated DNS change detection, a hijacked domain can go unnoticed for days. By the time emails bounce or customers report a cloned site, the damage is already done.
"event": "dns.record_changed",
"domain": "api.yourcompany.com",
"record_type": "A",
"diff": {
"previous_value": "104.21.55.12",
}
}
02. The Engine
Zero-Trust DNS Auditing
We don't rely on your registrar's internal notifications—which attackers often disable. We continuously query authoritative global nameservers from the outside in.
1. Baseline Snapshot
We record the exact state of your A, AAAA, MX, NS, and TXT records as the trusted source of truth.
2. Global Polling
Our edge nodes query the registry across multiple geographic locations at configurable high-frequency intervals.
3. Cryptographic Diff
We compare the live DNS response against your locked baseline to identify any new, modified, or missing records.
4. Instant Alerting
The millisecond a drift is detected, an alert payload is fired to your DevOps team via Slack or Webhook.
03. Complete Coverage
Critical Records You Must Monitor
A comprehensive security posture requires monitoring every layer of the DNS stack. Changes to different record types signal different types of catastrophic failures.
Traffic Routing (A/AAAA)
These records point your domain to a physical server IP. Unauthorized changes mean your web traffic is being actively hijacked and routed to a cloned phishing site.
Mail Exchange (MX)
Controls where incoming emails are sent. Attackers silently change this to intercept password resets, financial invoices, and sensitive internal communications.
Email Deliverability (SPF/DKIM)
Verifies your outgoing mail. Accidental deletion or syntax errors by an employee will instantly cause 100% of your outbound emails to land in customer spam folders.
Nameserver Authority (NS)
The keys to the kingdom. If nameservers are changed at the registry level, the attacker controls your entire DNS zone file. We alert you the moment authority shifts.
Service Mapping (CNAME)
Attackers hunt for dangling CNAME records pointing to discontinued third-party services (like Heroku or AWS S3). If detected, they can claim the bucket and hijack your subdomain.
Certificate Issuance (CAA)
Dictates which Certificate Authorities can issue SSL certificates for your domain. Monitoring this prevents attackers from modifying the record to issue a fraudulent certificate for phishing.
Slack & Discord
Route alerts directly to `#devops-alerts` ensuring the on-call engineer sees it immediately.
Global Propagation
Track which geographic regions have recognized your new configuration and which are lagging.
Smart Throttling
We utilize intelligent debouncing. If you are intentionally migrating a massive zone file, we summarize the changes rather than flooding your endpoints with 50 individual alerts.
04. Integration
Built for Incident Response
Data without delivery is useless. When a core infrastructure change is detected, your team needs to know immediately, in the tools they already use.
Our Developer Webhooks push structured JSON payloads to your custom incident management tools (like PagerDuty or Opsgenie), allowing you to trigger automated lockdown scripts the second drift is detected.
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Frequently Asked Questions
Technical details regarding our DNS monitoring engine.
What is DNS change detection?
DNS change detection continuously polls your domain's authoritative nameservers from multiple global locations. It compares active DNS records (A, AAAA, MX, CNAME, TXT, NS) against a baseline snapshot and alerts you immediately if any records are added, removed, or altered.
Why is monitoring DNS changes important?
DNS records control where your web traffic flows, where your emails are routed, and how your domain is verified. Unauthorized changes can result in traffic redirecting to malicious phishing sites, emails being intercepted, or domain verification records (SPF/DKIM) being manipulated.
How fast does your system detect a DNS change?
For users on our paid plans, DNS records are checked regularly. If a change occurs, it is detected during the next scheduled check and alerts are dispatched instantly via email or webhooks.
Does this check detect propagation issues?
Yes. By querying nameservers from multiple global edge locations, our tool can verify whether your DNS changes have successfully propagated globally or if certain regions are still receiving cached records.
What types of DNS records are supported?
We support monitoring for all standard DNS records, including A (IPv4 addresses), AAAA (IPv6 addresses), MX (mail servers), NS (nameservers), CNAME (canonical names), TXT (text records used for SPF, DKIM, and site verification), and CAA (certificate authorities).
Can DNS monitoring detect DNS hijacking or poisoning?
Yes. DNS hijacking occurs when hackers gain access to your registrar or DNS provider to redirect traffic. Because we query the records directly from authoritative nameservers, any unauthorized modification is instantly caught and reported to you.
Will DNS monitoring impact my website's performance or server load?
No. Our check consists of lightweight, standard DNS queries sent directly to your domain's nameservers. It generates virtually zero overhead and will not affect the speed, bandwidth, or performance of your website or nameserver.