User-agent: *
Disallow: /*/allchanges
Disallow: /*/changes
Disallow: /tools/knowledge-base?*
Disallow: /tools/knowledge-base/?*
crawl-delay: 10

User-agent: AhrefsBot
Disallow: /

User-agent: dotbot
Disallow: /

User-agent: SemrushBot
Disallow: /