Generating server rewrite configuration rules...
Potential Redirect Loop Warning
https://example.com/id-123/category-shoes
.htaccess file
nginx.conf inside server {} block
web.config file
Rule Execution Simulation Trace
SEO Guidance & Best Practices
Recent Rewrite History
URL Rewriting Specification & Deployment Guide
Internal Rewrite vs External Redirect
An Internal URL Rewrite maps a requested static URL (e.g. /product/123) to an internal dynamic handler (/product.php?id=123) transparently on the server without changing the browser address bar.
An HTTP Redirect (301/302) sends an explicit Location header telling the browser to issue a new HTTP request, changing the visible browser URL.
Query String Append (QSA)
In Apache mod_rewrite, the [QSA] (Query String Append) flag preserves incoming query parameters (such as ?utm_source=google) and merges them with rewritten parameters.
In Nginx, query string preservation is handled automatically by appending $is_args$args to the rewrite destination directive.
Preventing Redirect Loops
Redirect loops occur when a rule redirects to a target URL that matches the original condition (e.g., /about → /about/ while another rule strips trailing slashes). Always test generated rules in a staging environment prior to production deployment.
Production Deployment Safety
Verify that Apache mod_rewrite module is enabled (a2enmod rewrite) and AllowOverride All is set in VirtualHost settings for .htaccess directives to take effect.