RB2B Review 2026: Identify Anonymous Website Visitors
An honest RB2B review. Person-level website visitor identification, the free tier, US-only coverage, and how to turn warm visitors into outbound.
Key takeaways
- RB2B identifies anonymous US website visitors down to the person.
- It turns quiet website traffic into a warm outbound signal.
- The free tier makes it easy to start, and it pushes leads to Slack.
- Coverage is US-only, so it suits US-focused teams best.
Most of the people who visit your website never fill out a form. They look, they leave, and you never know they were there. RB2B exists to fix that for US traffic, and it has become one of the more talked-about signal tools in outbound. Here is the honest review.
What RB2B is
RB2B is a website visitor identification tool. You install a small script on your site, and when an anonymous visitor lands, RB2B works to identify them down to the individual person, not just the company, and pushes that identity to you, often straight into Slack in real time. The headline is person-level identification, which is more specific than the company-level tools that came before it.
Why this matters for outbound
A visitor on your pricing page is one of the warmest signals you can get. They are actively interested, but if they do not fill out a form, that intent is invisible. RB2B makes it visible. Knowing that a specific person from a target account just read your pricing page lets you reach out while the interest is hot, which is a far better starting point than a cold list. It is a textbook buying signal.
What RB2B does well
The free tier is genuinely useful, which is rare, and it lowers the barrier to trying it. The Slack integration means leads show up where your team already works, in real time, so nobody has to check another dashboard. And person-level resolution, when it hits, is more actionable than just knowing a company was on your site.
The honest limitations
The big one is coverage. RB2B identifies US visitors, so if your traffic is largely international, you will see far fewer matches. For US-focused teams this is a non-issue. For everyone else it is a real constraint.
Match rates are also not 100 percent. You will not identify every visitor, and the volume depends on your traffic. RB2B is a multiplier on existing traffic, not a source of leads on its own. If almost nobody visits your site, it has little to work with.
How we use it
RB2B works best as one input into a larger system:
- Install RB2B and route identified visitors into Slack and into Clay.
- In Clay, enrich the person and their company, and verify contact details.
- For visitors who fit the ICP, trigger a tailored, timely message through Smartlead, referencing the relevant interest without being creepy about it.
The tone matters. Reaching out warmly because someone showed interest is good. Saying you watched them read your pricing page is not. Reference the topic, not the surveillance.
Pricing, honestly
RB2B offers a free tier and paid plans that scale with the volume of identifications and features. The free entry point makes it low-risk to test on your own traffic and see your match rate before paying. Check current limits on their site.
The verdict
For US-focused teams with existing website traffic, RB2B is an easy and often free way to turn anonymous visitors into warm outbound. It will not replace your top-of-funnel, but it captures intent you are otherwise throwing away. Pair it with enrichment and tasteful outreach and it becomes a reliable source of warm conversations.
Frequently asked questions
How does RB2B identify website visitors?
You install a script on your site, and RB2B works to match anonymous visitors to individual people, then pushes that identity to you in real time, often into Slack. It resolves down to the person, not just the company.
Is RB2B free?
RB2B offers a genuinely useful free tier, with paid plans that scale with identification volume and features. The free entry point makes it easy to test your match rate before committing.
What is the catch with RB2B?
Coverage is US-only, and match rates are not 100 percent, so it works best for US-focused teams with existing website traffic. It multiplies the value of traffic you already have rather than generating leads on its own.