ZeriFlow Journal

Security guides your team can ship this week

Actionable articles on TLS, headers, CSP, privacy, and practical hardening for modern web apps.

DNS Security Best Practices: Protect Your Domain from Hijacking & Spoofing

Feb 28, 2026·8 min

Complete guide to DNS security. Prevent domain hijacking, DNS spoofing, and email fraud with DNSSEC, SPF, DKIM, and DMARC configuration.

#dns-security#dmarc#dkim

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Security Basics

SPF, DKIM, and DMARC: The Complete Email Authentication Guide

Feb 19, 2026·10 min

Email spoofing costs businesses billions every year. Learn how SPF, DKIM, and DMARC work together to protect your domain from phishing — with DNS record examples you can copy.

#email#dns#spf

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