🌐 Free DNS Monitoring Tools Revealing Stealthy Attacks 🌐

DNS is the backbone of your network – and attackers increasingly exploit it for data exfiltration, command-and-control, and malware communication. The good news? There are free tools CISOs can use to monitor and detect stealthy DNS attacks.

Here are the top free DNS monitoring tools:

1️⃣ SecurityTrails Free Tier – Track domain changes, DNS records, and suspicious activity.
🔗 https://securitytrails.com/

2️⃣ Farsight DNSDB (Community Access) – Historical DNS data to detect anomalies.
🔗 https://www.farsightsecurity.com/solutions/dnsdb/

3️⃣ PassiveTotal (Free Plan) – Aggregates DNS and threat intelligence for early detection.
🔗 https://www.riskiq.com/solutions/passivetotal/

4️⃣ OpenDNS Investigate (Free Tier) – Domain reputation and threat visibility from Cisco.
🔗 https://umbrella.cisco.com/products/investigate

5️⃣ Quad9 DNS Monitoring – Free recursive DNS service with threat blocking and logging.
🔗 https://www.quad9.net/

6️⃣ Pi-hole – Network-level DNS sinkhole that can monitor and block suspicious domains.
🔗 https://pi-hole.net/

7️⃣ Dnstrails Community Edition – DNS intelligence and threat mapping.
🔗 https://dnstrails.com/

⚡ These tools provide early indicators of compromise, helping CISOs spot threats before they escalate. DNS monitoring is often overlooked, but it’s a powerful layer of defense.

At AUMINT.io, we combine technical monitoring with human attack simulations, showing how attackers leverage phishing, vishing, and social engineering to exploit DNS and user behavior simultaneously.

🔗 Want to see how your team would react to DNS-targeted attacks? Book a free demo

#DNSMonitoring #CISO #CyberSecurity #ThreatDetection #AUMINT