User-agent: Yandex
Disallow: /

User-agent: YandexBot
Disallow: /

User-agent: DotBot
Disallow: /

User-agent: SEMrushBot
Disallow: /

User-agent: *
Disallow: /*app=chatbox

User-agent: Googlebot
Crawl-delay: 3000
Disallow:  /video/browse/*?*
Disallow:  /video/browse/5-m%C3%A4nguvideod/*?*