Demand Gen & PaidMarketing Glossary

Dark Social

Dark social refers to the sharing and discovery that happens in private channels — Slack communities, DMs, WhatsApp groups, private Discord servers, word-of-mouth — that attribution tools can't track. Your buyers are talking about you in places you'll never see. Dark social is why direct traffic spikes after a product gets mentioned in a popular newsletter, and why 'How did you hear about us?' surveys often return 'a friend' or 'can't remember.'

Real-World Example

For example, if someone shares your article in a 500-person Slack community of startup founders and 50 people click through, your analytics shows 50 direct visits with no referral source — that's dark social traffic you can't attribute but absolutely should be creating content for.

At Cactus

We help clients build content that travels through dark social — practical, opinionated, shareable content that founders forward to their networks.

Want help applying this?

We implement Dark Social strategies for B2B tech startups every day. Book a free 30-minute call to get a concrete plan for your situation.

Book a free strategy call →