Articles & Guides
Useful resources for web developers and system administrators
Performance
Core Web Vitals: How to Measure and Improve Page Speed
Core Web Vitals explained: LCP, INP and CLS thresholds, how field data differs from lab data, how to measure page speed and what to fix first.
Performance
Web Application Caching Strategies
Web application caching layers: browser, CDN, proxy, server cache, database. Invalidation strategies and patterns.
Performance
Image Optimization for Web Performance
How to optimize images for websites: WebP and AVIF formats, lazy loading, responsive images, compression without quality loss.
Infrastructure
API Rate Limiting: Why and How to Implement
Complete guide to API Rate Limiting: algorithms, implementation, headers, best practices. Protecting your API from abuse.
Monitoring
Alerting Best Practices for Website Monitoring
How to set up effective alerts: thresholds, notification channels, escalation, noise suppression. Avoiding alert fatigue.
Monitoring
Synthetic Monitoring vs Real User Monitoring (RUM)
Comparing Synthetic Monitoring and Real User Monitoring (RUM). When to use each approach, pros and cons, practical examples.
Security
WAF: What It Is and How It Protects Your Site
What is a Web Application Firewall (WAF), how it works, and what attacks it prevents. WAF types, configuration, and best practices.
Security
Cookie Security Flags: HttpOnly, Secure, SameSite
Understanding cookie security flags: HttpOnly, Secure, SameSite. How to protect user sessions from XSS, CSRF, and interception attacks.
HTTP
HTTP Caching Guide: Cache-Control, ETag, Expires
Complete guide to HTTP caching: Cache-Control, ETag, Expires, Last-Modified headers. Learn how to configure caching to speed up your website.
DNS
DNSSEC: How It Works, How to Enable and Safely Disable
How DNSSEC and the chain of trust work, how to sign a zone and publish the DS at your registrar, how to verify it with dig, and how to disable it without breaking the domain.