Articles & Guides
Useful resources for web developers and system administrators
Infrastructure
What Is a CDN and How Does It Speed Up Your Website
Learn what a CDN is, how points of presence work, and why a content delivery network is critical for website speed.
Monitoring
Domain and Website Monitoring: Why and How to Set It Up
A guide to website monitoring: uptime, SSL certificates, DNS changes, ping checks. How to detect problems before they affect your business.
Performance
Website Speed Optimization: A Complete Guide
Learn how to speed up your website: Core Web Vitals, TTFB, LCP, CLS, image optimization, caching, CDN, and resource minification.
DNS
DNS Record Types: A, AAAA, MX, CNAME, TXT and More
A detailed reference of DNS record types. What each record is for, and how to configure, verify, and troubleshoot DNS for your domain.
SSL/TLS
SSL/TLS Certificates: How HTTPS Works
How SSL/TLS works, certificate types, the TLS handshake process, Let's Encrypt setup, common errors, and how to fix them.
HTTP
HTTP Status Codes: Complete Reference with Examples
A complete reference of all HTTP status codes from 100 to 599 with descriptions and examples. Learn what each code means and how to handle it.
Security
Security Headers: CSP, HSTS, X-Frame-Options and More
How to protect your website with HTTP security headers. Configuring Content-Security-Policy, Strict-Transport-Security, X-Frame-Options, and other headers.
HTTP
HTTP Headers: The Complete Guide
What are HTTP headers, their types, and how request and response headers work. Practical examples and recommendations for web developers.