User-agent: AhrefsBot 
Disallow: /

User-agent: PetalBot 
Disallow: /

User-agent: sogou spider
Disallow: /

User-agent: Amazonbot/0.1
Disallow: /

User-agent: Amazonbot
Disallow: /

User-agent: SemrushBot
Disallow: /
User-agent: SemrushBot-SA
Disallow: /

User-agent: *
allow: /images/

User-agent: Linguee Bot
Disallow: 

User-agent: Linguee
Disallow: /

User-agent: MegaIndex.ru
Disallow: /

User-agent: megaindex.com
Disallow: /

# Block  MegaIndex.ru
User-agent: MegaIndex.ru/2.0
Disallow: /

User-agent: MegaIndex.ru
Disallow: /

User-agent: megaIndex.ru
Disallow: /

User-agent: grapeshot
Disallow: /

User-agent: VelenPublicWebCrawler
Disallow: /

User-agent: semantic-visions.com crawler 
Disallow: /

User-agent: Barkrowler/0.7 (+http://www.exensa.com/crawl)
Disallow: /

User-agent: Mozilla/5.0 (compatible; MSIE or Firefox mutant;) Daum 4.1 
Disallow: /

# http://moz.com/products
User-agent: dotbot
Disallow: /

# Block  MegaIndex.ru
User-agent: MegaIndex.ru/2.0
Disallow: /

User-agent: MegaIndex.ru
Disallow: /

# Block YandexBot
User-agent: Yandex
Disallow: /

# Block Baidu
User-agent: Baiduspider
User-agent: Baiduspider-video
User-agent: Baiduspider-image
Disallow: /

# Block Majestic
User-agent: MJ12bot
Disallow: /

User-agent: BLEXBot

Disallow: /