User-agent: *
Disallow: /
User-agent: BingPreview
Disallow: /
User-agent: bingbot
Disallow: /
User-agent: Yahoo Link Preview
Disallow: /
User-agent: HubSpot-Link-Resolver
Disallow: /
User-agent: HubSpot Connect
Disallow: /
User-agent: Ruby
Disallow: /