URL rewriting is a technique used to make web addresses more understandable for users, search engines or application architecture. Every web address entered into a browser is a URL, and it usually consists of a protocol, domain name and page path. For example, in https://kriko.io/glossary, https is the protocol, kriko.io is the domain name and /glossary is the page path. URL rewriting helps define which page, file or application route a visible address should correspond to on the server side.
URL rewriting is often used to make complex and technical URL structures more readable. For example, an address such as https://forexample.com/page?id=59&category=seo can be shown to users as https://forexample.com/seo/url-rewrite. This structure makes it easier for users to understand the topic of the page. It can also help search engines interpret page content and site hierarchy more clearly.
URL rewriting and redirection are not the same thing. In URL rewriting, the user usually sees a cleaner address in the browser, while the server maps that address to a different resource in the background. In a redirect, the user is sent from one URL to another and the address in the browser changes. From an SEO perspective, 301 redirects are often used for permanent URL changes, while URL rewriting is used when the visible address should remain clean and consistent.
Clear URL structures can provide important SEO and usability benefits. Short, descriptive URLs that match the page content support user experience and make links easier to share. However, rewriting a URL does not guarantee ranking improvements by itself. Content quality, technical SEO, site speed, internal linking, canonical usage and user experience also affect organic performance.
URL rewriting can be implemented across different server and application environments. Apache servers may use .htaccess and mod_rewrite, Nginx can use rewrite rules and IIS has a URL Rewrite module. Similar URL structures can also be created through routing in frameworks such as Ruby on Rails, Laravel, CodeIgniter, Django, Express.js or Java-based web applications. The appropriate method depends on the technology stack and website architecture.
A properly configured URL rewriting system makes complex links simpler and easier to understand. Users can identify the page topic more easily from the URL, while search engines can crawl the site structure in a more organised way. However, incorrect rewrite rules may cause broken links, redirect loops, duplicate content issues or indexing problems. For this reason, URL rewriting should be planned, tested and implemented in line with SEO requirements.
