Articles & Guides
Useful resources for web developers and system administrators
Security
How to Check a Website for Malware: 4 Layers of Detection and a Cleanup Plan
Check a website for malware: infection symptoms, external scanners, DevTools, hunting backdoors on the server and in the database, cloaking tests and a cleanup plan.
Security
SPF, DKIM, and DMARC: What They Are, Why You Need Them, and How to Set Them Up
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.
Performance
Graceful Degradation vs Progressive Enhancement: Strategies and Real-World Examples
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.
SSL/TLS
Certificate Transparency Logs: Detecting Rogue Certificates and Monitoring Your Domain
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.
Performance
Web Performance Budgets: Setting, Enforcing, and Automating Performance Limits
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.
Infrastructure
Multi-CDN Strategy: Failover, Cost Optimization, and Traffic Splitting
A comprehensive guide to implementing multi-CDN architecture for improved reliability, lower latency, cost optimization, and intelligent traffic splitting across CDN providers.
Monitoring
Real User Monitoring: The Complete Guide to RUM vs Synthetic Monitoring
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.
Security
HSTS and Preload List: Complete Implementation Guide
Complete guide to HTTP Strict Transport Security (HSTS) header and preload list. Implementation steps, risks, rollback strategy, and best practices.
DNS
Anycast DNS Explained: How It Works, Benefits, and Implementation
Learn how anycast routing works for DNS. Understand the benefits for resilience, speed, and DDoS mitigation. Practical implementation guide.
Performance
Resource Hints Explained: Prefetch, Preload, Preconnect, DNS-Prefetch
Complete guide to browser resource hints: prefetch, preload, preconnect, and dns-prefetch. Learn when to use each hint for optimal web performance.