DNS Security Best Practices for Business Domains

Why DNS security matters

DNS is the foundation of your online presence. A compromised DNS means attackers can redirect your traffic, intercept your emails, and impersonate your brand. Yet most businesses never audit their DNS configuration.

Best practices

1. Use a reputable DNS provider

Choose providers with DDoS protection, anycast networks, and DNSSEC support. Cloudflare, AWS Route53, and Google Cloud DNS are solid choices.

2. Enable DNSSEC

DNSSEC adds cryptographic signatures to DNS records, preventing cache poisoning attacks.

3. Lock your domain registration

Enable registrar lock to prevent unauthorized domain transfers. This stops domain hijacking.

4. Monitor DNS changes

Set up alerts for any changes to your DNS records. Unauthorized changes can indicate compromise.

5. Use separate DNS for email

Configure SPF, DKIM, and DMARC records to protect your email from spoofing.

6. Keep WHOIS private

Enable WHOIS privacy to prevent social engineering attacks using your registration details.

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