Both deanonymize website traffic. Here is where they pull apart.
RB2B and Warmly both answer the same question: who is visiting your website? But they answer it differently, for different buyers, at very different price points. RB2B identifies individual LinkedIn profiles of visitors and pushes them directly to Slack in real time. Warmly does company-level and person-level identification, but its real value is the orchestration layer on top: routing, CRM sync, and a sales room where reps can see live visitors and trigger automated sequences. If you are a lean team wanting signal fast, RB2B is hard to beat on price and simplicity. If you are running a full revenue stack and want visitor data to trigger multi-channel workflows, Warmly is built for that. Here is the full breakdown.
Identification approach and depth
RB2B identifies individual visitors by matching IP and browser signals to LinkedIn profiles. You see a name, title, company, and LinkedIn URL for people who visited your site. Warmly starts with company-level identification (like Clearbit Reveal) and layers in person-level matching via its data partners. Warmly also shows you what pages a visitor browsed, how long they spent, and their intent signals from third-party sources. RB2B is simpler. Warmly gives you more context per visitor if you are willing to pay for it.
Pricing and who it is for
RB2B has a free tier that identifies up to 5 contacts per month. Paid plans start at $79/month for 100 identified contacts and $149/month for 250 contacts. It is built for lean teams who want fast signal without enterprise tooling. Warmly's free plan identifies company names only, no person-level data. Person-level identification starts at around $700/month for up to 1,000 visitors. For startups or small teams, RB2B's pricing is accessible. For teams running 5,000-plus monthly website visitors who need CRM orchestration baked in, Warmly's cost is more justified.
CRM integration and workflow automation
RB2B sends identified visitors to Slack and has direct integrations with HubSpot and Salesforce to create contacts and log activity. It is lightweight by design. Warmly goes deeper: it auto-enriches records in your CRM, fires sequences in Outreach or Salesloft when a target account visits a key page, routes hot accounts to the right rep, and shows a live view of active visitors in a dashboard your team can act on in real time. If CRM orchestration is the goal, Warmly does more work for you.
| RB2B | Warmly | |
|---|---|---|
| Free tier | Yes, 5 identified contacts/month | Yes, company-level only (no person data) |
| Paid starting price | $79/month (100 contacts) | ~$700/month (person-level, up to 1,000 visitors) |
| Identification type | Individual LinkedIn profiles | Company + person-level (multi-source) |
| Slack notifications | Yes, real-time visitor alerts | Yes, with full enrichment context |
| CRM integrations | HubSpot, Salesforce (contact creation, activity logging) | Salesforce, HubSpot, Outreach, Salesloft, Apollo (native sync) |
| Sequence triggering | No native sequence triggers | Yes, trigger Outreach/Salesloft sequences on page visit |
| Live visitor dashboard | No | Yes, real-time sales room view |
| Intent data overlay | No | Yes, third-party intent signals per account |
| Best for | Lean teams, quick signal, sub-$150/month budget | Revenue teams with CRM orchestration needs, 1,000+ monthly visitors |
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The verdict
For most startups and growth-stage companies, RB2B is the right first tool. It is affordable, simple to set up in under an hour, and delivers actionable signal (a LinkedIn profile showing up in Slack when a target account visits) without requiring a RevOps build. At $79-149/month, the cost-to-value ratio is hard to argue with. Warmly is the right call when you have volume (1,000-plus monthly visitors), a real sales team that needs workflow automation, and a CRM you want visitor data to actively flow into. The live visitor room and native sequence triggers are genuinely useful when you have the reps to act on them. If you are debating between the two and you have under 10 people in sales, start with RB2B and revisit Warmly when you have the volume and process to use what you are paying for.
How does RB2B identify individual visitors?
RB2B uses a combination of IP intelligence, reverse IP lookup, and device fingerprinting to match visitors to LinkedIn profiles. When a visitor hits your site with a recognized IP or device signal, RB2B resolves their identity and pushes the LinkedIn profile to your Slack. The match rate varies by traffic source. B2B traffic from office networks and company devices matches at higher rates than mobile traffic or personal devices. RB2B reports an average match rate of around 15-25 percent of total B2B visitors.
Is Warmly worth the price for small teams?
Probably not. Warmly's full feature set (sequence triggers, live visitor room, CRM orchestration) requires a team that can act on the signal in real time. If you have 1-3 people in sales, you do not need a live visitor dashboard or automated routing rules. The value per dollar is much lower at small scale. RB2B at $79-149/month gives you signal that a scrappy founder or SDR can act on manually. Save Warmly for when you have 5-plus AEs and a RevOps person.
Can visitor identification replace intent data tools like Bombora?
No, they serve different purposes. Visitor identification tells you who has visited your website. Intent data tells you who is researching topics relevant to your product across the broader web, including competitor sites and third-party content. Both are useful, but they answer different questions. Visitor identification is a buying signal. Intent data is a researching signal. For most early-stage companies, visitor identification is higher priority because it reflects direct interest in your product specifically.
Does RB2B work for e-commerce or consumer traffic?
No. RB2B is built for B2B traffic. It identifies business visitors by matching to LinkedIn professional profiles, which only works for corporate email domains and business IP addresses. Consumer traffic from personal devices, residential IPs, or non-LinkedIn users will not match. If your site has mixed B2B and B2C traffic, RB2B will only surface the B2B segment, which is often still valuable. Pure B2C companies will see very low match rates.
How do RB2B and Warmly handle GDPR and privacy compliance?
Both tools operate in a legally contested space. Website visitor identification relies on IP address data and browser signals, which regulators in some jurisdictions (especially EU) consider personal data requiring consent under GDPR. RB2B is US-focused and most commonly used by companies whose site visitors are primarily in the US. Warmly has more robust enterprise compliance documentation and consent management features. If a meaningful share of your traffic is from the EU, consult your legal team before deploying either tool.
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