// Glossary · sales

RB2B

Also: reverse B2B · anonymous visitor identification

Tools that identify anonymous B2B visitors to a website by company and sometimes person, so outbound can target real intent signals.

RB2B (reverse B2B) is the category of tooling that resolves anonymous website traffic into identified company and contact records. The classic version, ZoomInfo WebSights or 6sense, identifies the company an IP belongs to. The newer version, the RB2B tool itself, claims person-level identification on US visitors via cookie-graph matching. Either way, the value is the same: you see which companies are evaluating your offer right now, before they fill out a form. That intent signal is the highest-quality lead source in outbound, because the prospect is already actively considering your category when the email lands.

The mechanics are straightforward. A pixel runs on your site. When a visitor lands, the pixel attempts to match their session against a known identity graph (corporate IP, cookie, email if they logged in elsewhere recently). If the match resolves, the visitor record drops into your CRM or warehouse with the company, person, and pages viewed. That record then feeds into lead enrichment and outbound sequencing. The email three days after a visit cites the specific page the prospect read, which means the cold touch is no longer cold. It is a researched follow-up to an inbound signal the prospect did not realize they sent.

Inside the AI Sales Department, RB2B feeds are one of the highest-priority input signals for the AI SDR. Anonymous visitor identification produces 3 to 5 times the warm-reply rate of cold sourcing because the intent is real. We typically pair RB2B with funding event signals and hiring signals to assemble a prioritized prospect list each morning. The agent handles the sequencing. The intent data sets the order.

// Examples
  • A VP of Sales visits 4 pages on the pricing section, RB2B identifies them, the AI SDR sends a follow-up email 36 hours later citing the specific pages.
  • A funded fintech visits the AI Sales Department landing page anonymously, RB2B resolves the company, the next morning the founder gets a researched outbound touch.
  • A SaaS prospect downloads no asset but visits the case studies page twice in 7 days, the agent surfaces them as a higher-priority outbound target.
// Common questions
Is RB2B legal under GDPR?
Person-level identification in EU jurisdictions is restricted under GDPR and ePrivacy without explicit consent. Most operators run RB2B on US traffic only and fall back to company-level identification for EU visitors. The compliance posture depends on the specific tool and your privacy policy. We default to US-only person-level resolution.
What identification rate should I expect?
Person-level resolution on US B2B traffic runs 20% to 40% match rate depending on the tool and the visitor source. Company-level resolution runs 60% to 80% on B2B traffic. Consumer traffic gets neither, which is fine because the use case is B2B outbound.
How does RB2B differ from a chatbot or form?
A chatbot and a form ask the visitor to identify themselves. RB2B identifies them without the ask. The trade-off is intent signal versus depth. A form gives you the visitor pain point. RB2B gives you the visitor identity and the pages they viewed. Both have a place. The strongest motions run both.
Is RB2B intent data worth the cost?
For B2B teams running outbound at meaningful volume, yes. Warm-reply rates on RB2B-sourced outreach run 3 to 5 times higher than cold-sourced outreach because the prospect is already evaluating. Pricing is typically $500 to $2000 a month, recoverable in a single closed deal sourced from the data.
// Related terms
// Ready to ship?

EOI runs fractional AI departments for funded teams under 50. Sales, Content, Ops, Support. Live in 14 days on a monthly retainer.

Apply for a sprint →See all departments →