User-agent: Yeti
Disallow: /
User-agent: Yeti/0.01
Disallow: /

User-agent: Sogou web spider/3.0
Disallow: /
User-agent: FAST MetaWeb Crawler
Disallow: /
User-agent: Sogou Orion spider/3.0
Disallow: /
User-agent: Gigabot/2.0
Disallow: /
User-agent: great-plains-web-spider
Disallow: /
User-agent: *
Crawl-delay: 300