Security
Advanced security topics and best practices for web protection
55 articles in this category
CA/Browser Forum Domain Validation Changes in 2026
Understand CA/Browser Forum 2026 changes: mandatory DNSSEC validation (SC-085), email/phone DCV sunset (SC-090), and what website owners must do to prepare.
The SSL Certificate Expiration Problem: Why Shorter Lifetimes Will Cause More Outages
Learn why shorter SSL certificate lifetimes increase outage risk. Understand certificate expiration as a reliability problem and how to prevent renewal failures.
SSL Certificate Validity in 2026: The 200-Day Limit and the Road to 47 Days
Maximum TLS certificate validity has been 200 days since March 15, 2026 under CA/Browser Forum ballot SC-081v3. The full schedule to 100 and 47 days, the DCV reuse cuts, and how to automate renewals.
CAA Record Guide: Certificate Authority Authorization
Learn what CAA records are, how they protect your domain from unauthorized SSL certificate issuance, and how to configure CAA DNS records step-by-step.
Post-Quantum Cryptography: Preparing Your Website for Quantum-Safe TLS
Learn about ML-KEM, ML-DSA, and hybrid cryptography. Future-proof your website security before quantum computers threaten current SSL/TLS.
IBM Quantum Platform SSL/TLS Configuration Guide
Comprehensive guide to SSL/TLS security for IBM Quantum Platform. Configure Qiskit, REST APIs, and prepare for post-quantum cryptography.
What is PKI?
Understand Public Key Infrastructure (PKI) — the trust framework behind SSL certificates, digital signatures, and encrypted communications. Learn about CAs, key pairs, and certificate chains.