wp_redirect

<?php /* Template Name: Test Form */ get_header();

if( 'POST' == $_SERVER['REQUEST_METHOD'] && !empty( $_POST['action'] ) &&  $_POST['action'] == "new_post") {

if (isset ($_POST['title'])) {
    $title =  $_POST['title'];
} else {
    echo 'Please enter a  title';
}
if (isset ($_POST['description'])) {
    $description = $_POST['description'];
} else {
    echo 'Please enter the content';
}
if (isset ($_POST['domain'])) {
    $domain = esc_attr($_POST['domain']);
} else {
    echo 'Please enter the domain';
}
if (isset ($_POST['keywords'])) {
    $keywords = sanitize_text_field ($_POST['keywords']);
} else {
    echo 'Please enter the keywords';
}
$tags = $_POST['post_tags'];

$new_post = array(
    'post_title'    => $title,
    'post_content'  => $description,
    'post_category' => array($_POST['cat']),  // Usable for custom taxonomies too
    'tags_input'    => array($tags),
    'post_status'   => 'publish',           // Choose: publish, preview, future, draft, etc.
    'post_type' => 'website'  //'post',page' or use a custom post type if you want to
);

$pid = wp_insert_post($new_post);
update_post_meta($pid,'domain',$domain);
update_post_meta($pid,'keywords',$keywords);

wp_redirect( get_permalink($pid) );
exit();
//insert taxonomies
} ?>