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Knowledge base - Guides to web development

A topic-based collection of guides to building, analysing, improving, and maintaining websites. The articles focus on useful tools, technical decisions, and implementation details rather than generic advice.

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52 practical guides

Planning a booking website

Planning a booking website

A booking website stands or falls on decisions made before anyone picks a calendar: how a booking is confirmed, which system owns availability, how money and cancellations work, and what staff need afterwards.

Security, privacy and protocol

Security, privacy and protocol

Security, privacy, and protocol details shape how browsers, crawlers, users, and external systems trust a site. This guide covers HTTPS, HSTS, CSP, cookies, security.txt, privacy, error handling, redirects, monitoring, and other technical signals that support stable SEO.

The history of PHP

The history of PHP

PHP did more than survive three decades of web development. It made dynamic websites accessible, grew from personal tools into a community language, and kept evolving without abandoning its practical character.