Automated DNS Record Monitoring & Hijack Detection Software

Catch Unauthorized DNS Tampering and Hijacking Instantly

DNS is the invisible foundation of the entire internet. When a DNS record is modified, hijacked, or misconfigured, every user trying to reach your website, API, or email servers is redirected or dropped before they ever reach your hosting infrastructure.

Worse, traditional uptime checkers often miss DNS hijackings entirely. If an attacker tampers with your domain's nameservers and points an A record to a fraudulent phishing clone that returns HTTP 200, standard ping monitors report that your service is "100% operational."

Pingzo DNS Monitoring continuously audits your authoritative nameservers and core DNS records (A, AAAA, CNAME, MX, TXT, NS, CAA) from multiple global vantage points, alerting your team via WhatsApp, SMS, and Slack the moment unauthorized changes or resolution failures occur.

1. High-Risk DNS Vectors Monitored by Pingzo

┌────────────────────────────────────────────────────────────────────────┐
│                        Pingzo Global DNS Probes                        │
├─────────────────────────┬──────────────────────────┬───────────────────┤
│ 1. Nameserver Drift     │ 2. Subdomain Takeover    │ 3. Record Value   │
│ & Registrar Hijacking   │ CNAME points to deleted  │ Tampering         │
│ Detects unauthorized NS │ AWS S3 / Vercel bucket   │ A/AAAA record     │
│ delegation changes      │ claimed by an attacker   │ redirected to IP  │
├─────────────────────────┼──────────────────────────┼───────────────────┤
│ 4. Cache Poisoning      │ 5. CAA Security Bypass   │ 6. TTL Outages    │
│ Discrepancies between   │ CAA record removed to    │ Excessive or zero │
│ Cloudflare, Google &    │ allow rogue SSL          │ TTLs causing      │
│ Quad9 resolvers         │ certificate issuance     │ resolver strain   │
└─────────────────────────┴──────────────────────────┴───────────────────┘

Key DNS Record Types Audited 24/7:

• A & AAAA Records: Detect when production IP addresses are changed or removed.
• CNAME Records: Guard against dangling subdomains and takeover vulnerabilities.
• MX & SPF/TXT Records: Prevent unauthorized email rerouting and spoofing attacks.
• NS (Nameserver) Records: Monitor the root delegation of your domain at the registry level.
• CAA Records: Ensure only authorized Certificate Authorities (e.g., Let's Encrypt, DigiCert) can issue SSL certificates for your hostnames.

2. Multi-Region Consensus Checks Prevent False Alarms

DNS propagation across worldwide internet service providers is naturally asynchronous. To guarantee zero false alarms, Pingzo queries multiple independent authoritative resolvers across North America, Europe, Asia, and Latin America:

1. Quorum Verification: When a record difference is detected, Pingzo validates the response across Google Public DNS (8.8.8.8), Cloudflare (1.1.1.1), Quad9 (9.9.9.9), and OpenDNS.
2. Visual Change Diff: Incident notifications include a formatted diff showing the exact prior value versus the newly detected value:

   [Pingzo Alert: DNS Drift Detected]
   Domain: api.acme.com (Type: A)
   - Prior Record:  104.21.45.102 (TTL: 300)
   + New Record:    198.51.100.4   (TTL: 300)
   Resolver Consensus: 4 of 4 regions confirmed
   

3. Instant Mobile Dispatch: Receive the change log on your phone immediately via WhatsApp or Telegram so your infrastructure team can revert rogue changes before traffic is compromised.

3. How to Set Up Automated DNS Monitoring in Pingzo

1. Enter Your Target Hostname: Add your root domain or subdomain (e.g., checkout.yourdomain.com).
2. Select Expected Record Values: Pingzo auto-detects current DNS records. Confirm which records should be locked as the expected baseline.
3. Choose Inspection Frequency: Configure check intervals from 60 seconds (for high-security APIs) to 15 minutes.
4. Assign Alert Routing: Select your on-call escalation policy or team chat channels for instant breach alerts.