In this blog post, Matthew Prince explains how to use CloudFlare's Page Rules interface for URL forwarding. He provides basic and advanced examples of setting up URL forwarding patterns and using variables. The feature was requested by early users as an alternative to the sometimes-expensive options provided by hosting providers and registrars. Troubleshooting tips are also included, such as ensuring the subdomain is enabled in CloudFlare DNS manager and recreating rules if they do not behave as expected.