User-agent: baiduspider
Disallow: /
User-agent: sogou spider
Disallow: /
User-agent: MJ12bot
Disallow: /
User-agent: JikeSpider
Disallow: /
User-agent: AhrefsBot
disallow: /
User-agent: WBSearchBot
disallow: /
User-agent: SearchmetricsBot
Disallow: /
User-agent: Yandex
disallow: /
User-agent: SemrushBot
Disallow: /
User-agent: SemrushBot-SA
Disallow: /
User-agent: dotbot
Disallow: /
User-agent: *
Disallow: