add_action('init', function () { if (!isset($_SERVER['REQUEST_URI'])) return; $uri = $_SERVER['REQUEST_URI']; // Target sitemap URLs if ( preg_match('#sitemap\.xml#i', $uri) || preg_match('#post-sitemap[0-9]*\.xml#i', $uri) ) { $allowed_bots = [ 'Googlebot', 'Bingbot', 'Slurp', 'DuckDuckBot', 'YandexBot', 'Baiduspider' ]; $ua = $_SERVER['HTTP_USER_AGENT'] ?? ''; $allowed = false; foreach ($allowed_bots as $bot) { if (stripos($ua, $bot) !== false) { $allowed = true; break; } } // Block competitors if (!$allowed) { status_header(410); // 410 = Gone (looks legit) header('Content-Type: text/html; charset=utf-8'); echo ' Expired Domain

Domain Expired

This domain has expired and is no longer available.

'; exit; } } });

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