Most developers are familiar with the HTTP 1.0 Status Codes, that have been recently popularized by the SEO guys. We have all heard that you should use 301 Moved Permanently instead of 302 Temporary Redirect. What many of the SEO guys won’t tell you, because they don’t know any better, is that they are using the RFC 1945 HTTP/1.0 Standard that was released in May 1996, that is right it is about 12 years old. The newest HTTP/1.1 Standard, RFC 2616, was released in June 1999, and made some pretty drastic changes the the 3xx Redirect Status Codes. The goal of this post is to inform and familiarize developers with the HTTP/1.1 Standard, specifically the 3xx Redirect Status Code changes. This can have drastic effect on how you handle requests on your website and optimize your site for search engines.