ASP.NET Custom 404 Returning 200 OK Instead of 404 Not Found

Question

After trying to setup my site for Google Webmaster Tools I found that my Custom ASP.NET 404 page was not returning the 404 status code. It displayed the correct custom page

Answer 1

Try calling Response.End() to skip rendering...

Response.Status = "404 Not Found";
Response.StatusCode = 404;
Response.End();
return;