Articles & Guides

Complete guide to SPF, DKIM, and DMARC email authentication. Learn how to protect your domain from spoofing, improve deliverability, and pass Gmail and Yahoo requirements.

Compare graceful degradation and progressive enhancement approaches to web development. Learn practical strategies, code examples, and when to use each approach for resilient web applications.

Understand how Certificate Transparency logs work, why they matter for web security, and how to monitor CT logs to detect unauthorized certificates issued for your domain.

Learn how to create and enforce web performance budgets using metrics like LCP, bundle size, and request count. Integrate budgets into CI/CD pipelines for automated enforcement.

A comprehensive guide to implementing multi-CDN architecture for improved reliability, lower latency, cost optimization, and intelligent traffic splitting across CDN providers.

Learn the differences between Real User Monitoring and synthetic monitoring, how to track Core Web Vitals, and which RUM tools to use for production performance insights.

Complete guide to HTTP Strict Transport Security (HSTS) header and preload list. Implementation steps, risks, rollback strategy, and best practices.

Learn how anycast routing works for DNS. Understand the benefits for resilience, speed, and DDoS mitigation. Practical implementation guide.

Complete guide to browser resource hints: prefetch, preload, preconnect, and dns-prefetch. Learn when to use each hint for optimal web performance.

Complete web server hardening checklist for nginx and Apache. File permissions, security headers, TLS configuration, access control, and monitoring.