User-agent: *
Disallow: /
Disallow: /*?utm_*

User-agent: Googlebot
Allow: /lkp
Allow: /landing
Allow: /og/docs
Disallow: /
Disallow: /*?utm_*

User-agent: Yandex
Allow: /lkp
Allow: /landing
Allow: /og/docs
Disallow: /
Disallow: /*?utm_*