Articles & Guides
Useful resources for web developers and system administrators
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 DNS Security Works and Why You Need It
What is DNSSEC, how it protects against DNS spoofing. Chain of trust, RRSIG, DNSKEY, DS record types. How to check and configure DNSSEC.
Monitoring
Website Uptime and SLA: What 99.9% Really Means
What is website uptime and SLA. The difference between 99.9% and 99.99%, how to calculate allowed downtime, and availability monitoring tools.
HTTP
HTTP/2 vs HTTP/3: Differences and Performance Comparison
Comparing HTTP/2 and HTTP/3 protocols: multiplexing, QUIC, head-of-line blocking, performance. How to check and configure your server.
Security
Open Server Ports: How to Check and Why It Matters for Security
Guide to checking open ports: TCP/UDP, common ports, scanning tools, security risks, and best practices for hardening your server.
Domains
WHOIS: How to Look Up Domain Information and Why It Matters
Complete guide to WHOIS lookups: how to find domain ownership, registration dates, expiry times. Examples, tools, and practical applications.