Question

I need some javascript or php code to detect if user has linked directly to me site’s page so I can then redirect it to the homepage.

Is this possible?

Answer 1

Check is the the host of your server is in the http_referer (it is the last url visited by the user).

function is_direct_link() {
    return (!empty($_SERVER['HTTP_REFERER']) && stripos($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST']) === false);
}

if (is_direct_link()) {
    header('location: http://www.google.com');
    exit();
}