URL rewriting refers to the process of modifying and standardizing the structure of a URL in a user-friendly and search engine-friendly manner. It often involves converting dynamic URLs with long strings of characters into static URLs that are shorter and more descriptive.
Purpose and benefits:
The purpose of URL rewriting is to improve both user experience and search engine optimization (SEO). Well-structured URLs are easier for users to read and remember, and they provide a clear hierarchy that helps search engines understand the page content and context. This can lead to better crawling and indexing of web pages, which in turn can improve a sites visibility and rankings in search engine results pages (SERPs).
Techniques:
- Descriptive URLs: Rewrite URLs to include relevant keywords and content descriptions.
- Hierarchical structure: Use directories to illustrate the structure of your website and clarify relationships between pages.
- Hyphens over underscores: Opt for hyphens to separate words within URLs, as search engines treat hyphens as space, but may concatenate words joined by underscores.
- Removal of www: Simplify URLs by removing the traditional www to create a cleaner look, provided it matches the sites canonical preferences.
- Elimination of dynamic parameters: Replace dynamic URL parameters (e.g., session ids, tracking codes) with path-based structures that are more SEO-friendly.
- Lowercase letters: Use lowercase letters to avoid confusion, as URLs are case-sensitive on certain servers.
Implementation:
To implement URL rewriting, webmasters may use a server-side rewrite engine such as Apaches mod_rewrite module or Microsoft’s URL Rewrite Module for IIS. These tools allow for mapping of complex URLs to a simpler and more user-friendly format. When setting up URL rewriting, it’s essential to handle redirects correctly to maintain link equity for any preexisting links that might have changed during the process.
Caution:
When rewriting URLs, its critical to ensure that proper 301 redirects are put in place for the old URLs to the new ones to retain search engine rankings and avoid broken links. Moreover, excessive rewriting can lead to overly complex URLs that are just as disadvantageous as the dynamic URLs they replaced, thus moderation and strategic planning are key.