Articles & Guides

Learn how to build health check endpoints that accurately report service status. Cover liveness vs readiness, dependency checks, and response formats.

Explore rate limiting algorithms — token bucket, sliding window, fixed window — and learn how to implement effective API rate limiting.

Learn web accessibility fundamentals for developers. Cover WCAG guidelines, semantic HTML, ARIA, keyboard navigation, and testing tools.

Learn how the X-Forwarded-For header works, why it matters for logging and security, trust chain configuration, and common pitfalls.

Master CDN cache invalidation techniques. Learn purge strategies, cache-busting, TTL tuning, and how to balance freshness with performance.

Learn about wildcard SSL certificates — how they work, security implications, when to use them vs individual certs, and configuration best practices.

Trace every step of an HTTP request from typing a URL to seeing a rendered page. DNS, TCP, TLS, HTTP, rendering — understand the full journey.

Understand the differences between IPv4 and IPv6, why the transition matters, dual-stack configuration, and how to prepare your web infrastructure.

Understand key reliability metrics — MTTR, MTTF, MTBF — and how to use them to measure and improve your web service availability.

Master robots.txt configuration for search engine crawling. Learn syntax, common patterns, testing tools, and mistakes to avoid.