URL Rewriting

URL rewriting is a web server technique that modifies incoming URLs before processing them, typically to create cleaner, more user-friendly, or SEO-optimized URLs. It involves mapping a requested URL to a different internal URL or resource, often using rules defined in configuration files like .htaccess for Apache or web.config for IIS. This process is commonly used to hide technical details, implement redirects, or manage dynamic content paths.

Also known as: URL Rewrite, URL Redirection, Mod_Rewrite, IIS URL Rewrite, Clean URLs

Why learn URL Rewriting?

Developers should learn URL rewriting to improve website usability, search engine optimization (SEO), and maintainability by creating readable URLs that are easier for users and search engines to understand. It is essential for implementing permanent redirects (e.g., during site migrations), handling legacy URLs, and structuring RESTful APIs with clean endpoints. Use cases include converting dynamic URLs like 'example.com/product.php?id=123' to static-looking ones like 'example.com/products/123'.

Learning Resources

• docs: Apache mod_rewrite Guide
• docs: IIS URL Rewrite Module Documentation
• docs: NGINX Rewrite Module
• tutorial: URL Rewriting for Beginners (Tutorial)
• tutorial: SEO-Friendly URLs with Rewriting