DNS Security

DNS hijacking, DNSSEC, CAA records, email authentication (SPF/DKIM/DMARC), and best practices for protecting your domain.

DNS is a frequent target for attacks — hijacking, spoofing, and poisoning can redirect your users to malicious servers. These articles cover DNSSEC, CAA records, email authentication, and the security practices that protect your domain.

For a comprehensive overview, see our DNS Security and Monitoring Guide.

DNS Security Best Practices for Your Domain

A comprehensive DNS security checklist covering DNSSEC, registrar locks, CAA records, email authentication, monitoring, and more to protect your domain.

DNS Hijacking: How It Works and How to Detect It

Learn how DNS hijacking works, the different types of DNS attacks, real-world examples, and how to detect and prevent DNS spoofing and poisoning.

What Is DNSSEC? How It Protects Your Domain

What DNSSEC is, how the chain of trust works from root to domain, how DNS responses are validated with RRSIG and DNSKEY records, and how to enable DNSSEC on your domain.

DNS CAA Record: Controlling Certificate Issuance

What DNS CAA records are, how they control which certificate authorities can issue SSL certificates for your domain, and how to set them up correctly.

SPF, DKIM, and DMARC: DNS Records for Email Authentication

How SPF, DKIM, and DMARC DNS records work together to authenticate email, prevent spoofing, and protect your domain. Includes record syntax, setup steps, and common mistakes.