User-agent: AhrefsBot 
Disallow: /

User-agent: ia_archiver
Disallow: /

User-agent: Baiduspider
Disallow: /

User-agent: BLEXBot
Disallow: /

User-agent: BUbiNG
Disallow: /

User-agent: dotbot
Disallow: /

User-agent: MegaIndex.ru
Disallow: /

User-agent: MJ12bot
Disallow: /

User-agent: PiplBot
Disallow: /

User-agent: Qwantify
Disallow: /

User-agent: SemrushBot
Disallow: /

User-agent: spbot
Disallow: /

User-agent: VelenPublicWebCrawler
Disallow: /

User-agent: YandexBot
Disallow: /