Pyalm Guard Guides

Attack surface, DNS, TLS, email authentication and security posture assessment.

Jul 7, 2026

Introducing Pyalm Guard: An Authorized Security Posture Assessment Tool

Point Pyalm Guard at a domain you own and it runs a full, non-destructive checkup — DNS, subdomains, email authentication, TLS, headers, ports, threat intelligence, and breach exposure — scored into one clear risk grade.

Jul 7, 2026

Subdomain Takeover: How Dangling DNS Records Get Hijacked — and How to Find Them

A subdomain takeover happens when a DNS record still points at a service you no longer own. Here's how dangling CNAMEs get hijacked, what an attacker can do with one, and how to detect and close them.

Jul 7, 2026

SPF, DKIM, and DMARC Explained: How to Stop Email Spoofing on Your Domain

SPF says who can send, DKIM proves nothing was tampered with, and DMARC ties them together and tells receivers what to do. Here's how the three work — and how to check yours are set up right.

Jul 7, 2026

HTTP Security Headers: A Practical Guide to HSTS, CSP, and the Rest

A handful of response headers quietly decide whether your site can be framed, downgraded, or injected into. Here's what HSTS, CSP, X-Frame-Options and friends do, and how to tell if yours are set right.