User-agent: *</br>
Host: https://chengchengsm4.top</br>
Sitemap: https://chengchengsm4.top/sitemap.php</br></br>

User-agent: Yandex</br>
Crawl-delay: 5</br>
Host: https://chengchengsm4.top</br>
Sitemap: https://chengchengsm4.top/sitemap.php</br>