user-agent: *
Disallow: /business/admin_ncra/
Disallow: /charts/chartpos.cfm
Crawl-delay: 10

# slow it down
User-agent: Yandex
Crawl-delay: 200 # specifies a 2 second timeout

# Block due to SEO or pseudo-SEO which is not useful to me.
User-agent: AhrefsBot
Disallow: /

User-agent: Sosospider
Disallow: /

User-agent: Synapse
Disallow: /

User-agent: BLEXBot
Disallow: /

User-agent: SemrushBot
Disallow: /

User-agent: MJ12bot
Disallow: /

User-agent: AhrefsBot 
Disallow: /