User-agent:*
Crawl-delay:30

User-agent: *
Disallow: /td/
Disallow: /tdnew/
Disallow: /old_site/

User-agent:YandexBot
Disallow: /

User-agent: AhrefsBot
Disallow: /

User-agent: Baiduspider/2.0 
Disallow: /