User-agent: *
Crawl-delay: 45
User-agent: Mediapartners-Google 
User-agent: SemrushBot
User-agent: SemrushBot-SA
User-agent: YandexBot
User-agent: MJ12bot
User-agent: AhrefsBot
User-agent: bingbot
User-agent: BLEXBot
User-agent: DotBot
User-agent: UptimeRobot
User-agent: DnyzBot
User-agent: Baiduspider
User-agent: BUbiNG
User-agent: PetalBot
Disallow: /