From: "Pierre d." Date: 2012-10-25T07:07:34+09:00 Subject: Googlebot- How to generate a 404 error status after a if statement Hello, I have a multilingual site. Googlebot generates error 500 in many case. Googlebot try any combination of parameters. It still tries to test old urls of old websites I had in the past. To avoid this I decided to create an if statement letting nobody enter with wrong parameters. On one page for example I wrote this <% if params[:locale] == "en" || params[:locale] == "de" || params[:locale] == "fr"> (with other parameters than en de or fr the site display itself not normally, and with other parameters than en de fr there should be nothing to display, as i have only a trilingual website. So if <% if params[:locale] == "en" || params[:locale] == "de" || params[:locale] == "fr", we can display the page ELSE I display a page with the 3 existing choices to click: fr en de. This way I avoid a 500 error of googlebot or an anormally displayed page of a google user clicking on a bad referenced page. BUT the problem is that "google webmaster tools" indicates now that the website has many errors. Because wrong parameters display a page without error instead of returning a 404 error page. Because of this I have too many pages to crawl, as i have infinite number of pages that returns status 200 OK. I just would like to write something that generates the 404 error page status, in order googlebot do not references it. So i copy all i found on the internet for scripts to generate a 404 error status, but nothing works. Finally i put this html script My app is capable to generate error status in many cases, as the page /fr/not_found, does not exist, I get the correct error message on the website, but for googlebot it is not a 404 status as the page exists. How could I generate a 404 error status whenever I want and if possible in a rhtml file? Thanks a lot for your help -- Posted via http://www.ruby-forum.com/.