I want change my website HTTP status code right now when any page not avalable on my website its return HTTP status Code 404 now i want to change it to HTTP status Code 200
You will need to use .htaccess's ErrorDocument directive to catch all Not Found pages. Then use a scripting language to send a "HTTP/1.1 200 OK" header.
i am using PHP and sending HTTP/1.1 200 OK in PHP header but its still giving me 404 by this HTTP Tool http://gsitecrawler.com/tools/Server-Status.aspx Whats i done i set up 404 page on .htaccess and in 404 PHP page i put HTTP/1.1 200 OK in header