Knowledge Base

Standards CAA_WILDCARD_ISSUE_TAG_MISSING

CAA Wildcard Gap: Why *.example.com Ignores the Base Domain's CA Restriction

Summary A domain can carry a perfectly valid CAA record restricting issuance to one trusted certificate authority, and still have a wildcard...

Sep 13, 2026 Read More

Email Security EMAIL_ALIGNMENT_MISMATCH

DMARC Alignment Bypass: When SPF/DKIM Domains Don't Match Your From Header

DMARC Alignment Bypass: When SPF/DKIM Domains Don't Match Your From Header Email authentication standards (SPF, DKIM, and DMARC) verify that mail...

Sep 01, 2026 Read More

Web Security WEB_SECURITY_EXPIRED_CERT

Expired TLS Certificates: Why Your HTTPS Lock Becomes a Liability

Expired TLS Certificates: Why Your HTTPS Lock Becomes a Liability Abstract: Expired TLS certificates leave HTTPS security exposed. Browsers warn...

Aug 29, 2026 Read More

DNS Security DNSSEC_NSEC_ENUMERATION

Zone Walking Through DNSSEC NSEC Chain Enumeration

Zone Walking Through DNSSEC NSEC Chain Enumeration Overview DNSSEC protects the authenticity and integrity of DNS records through cryptographic...

Aug 29, 2026 Read More

Email Security DANE_SOFTFAIL_ENABLED

Silent Failures in DANE: Why Softfail Configuration Enables Mail Interception

Silent Failures in DANE: Why Softfail Configuration Enables Mail Interception Introduction DANE (DNS-based Authentication of Named Entities)...

Aug 29, 2026 Read More

Standards RPKI_ROA_EXPIRED

Route Hijacking Through Expired ROA Windows: The Cost of Forgotten Validations

Route Hijacking Through Expired ROA Windows: The Cost of Forgotten Validations Introduction Resource Public Key Infrastructure (RPKI) was...

Aug 29, 2026 Read More

Web Security WEB_SECURITY_HSTS_MISSING

SSL Stripping Attacks: When Missing HSTS Headers Leave Domains Vulnerable

SSL Stripping Attacks: When Missing HSTS Headers Leave Domains Vulnerable Introduction An SSL stripping attack requires no zero-day exploits, no...

Aug 06, 2026 Read More

Email Security EMAIL_SECURITY_DMARC_POLICY_NONE

DMARC p=none Trap: Why 'Monitor-Only' Policies Enable Email Spoofing

DMARC p=none Trap: Why 'Monitor-Only' Policies Enable Email Spoofing Domain-based Message Authentication, Reporting, and Conformance (DMARC) is...

Aug 06, 2026 Read More

DNS Security DNSSEC_SIGNATURE_STRIPPED

DNSSEC Stripping: How Man-in-the-Middle Attacks Disable DNSSEC Protection

DNSSEC Stripping: How Man-in-the-Middle Attacks Disable DNSSEC Protection DNSSEC (Domain Name System Security Extensions) provides cryptographic...

Aug 06, 2026 Read More

Email Security DANE_CERT_MISMATCH

Why Your DANE Certificate Migration Failed: Common TLSA Update Mistakes

Why your DANE certificate migration failed: Common TLSA update mistakes Your organization just completed a critical TLS certificate renewal for...

Aug 06, 2026 Read More

Standards RPKI_MAXLENGTH_OVERFLOW

The Maxlength Trap: How Generous ROA Scoping Enables Prefix Hijacking

The Maxlength Trap: How Generous ROA Scoping Enables Prefix Hijacking RPKI (Resource Public Key Infrastructure) prevents BGP route hijacking by...

Aug 06, 2026 Read More

Email Security & Authentication

Why DANE and DNSSEC Are the Future of Email Security

Standard encryption alone isn't enough anymore. Most systems have adopted Transport Layer Security (TLS) to encrypt connections, but the way those...

Jan 05, 2026 Read More

Network Security

Why RPKI is the Missing Piece in Your Domain

When people talk about internet security, they usually focus on SSL certificates (the little lock icon) or strong passwords. But there's a deeper,...

Jan 05, 2026 Read More

DNS Security

DNSSEC: The Invisible Shield Protecting Your Domain's Integrity

The Domain Name System (DNS) is often called the "phonebook of the internet." It translates human-friendly domain names (like ) into the IP...

Jan 05, 2026 Read More