ZoomInfo WebSights vs RB2B: Verification Checklist

What is the difference between ZoomInfo WebSights and RB2B?

ZoomInfo WebSights and RB2B both identify website visitors, but they position themselves differently. WebSights runs inside ZoomInfo's platform: ZoomInfo's pages, fetched 2026-09-15, describe matching visitors to companies mainly by reverse IP lookup, with person-level signals only through opt-in features, and they publish no price. RB2B's homepage, fetched the same day, positions RB2B around person-level identification — names, LinkedIn profiles, and email addresses — for US traffic only, with global company-level identification through a partnership with Demandbase, and RB2B publishes self-serve pricing. Neither vendor's public pages prove which one is more accurate on your traffic. If you only need to know what WebSights is, how it works and how it is installed, read what ZoomInfo WebSights is first.

If the other option on your list is an identification-plus-engagement platform rather than a company database, see RB2B vs Warmly, which compares RB2B with Warmly's chat, retargeting and outbound bundle.

Decision point	ZoomInfo WebSights (ZoomInfo pages, 2026-09-15)	RB2B (RB2B pages, 2026-09-15)
Positioning	Companies and decision-makers exploring your site, with bot filtering.	The people and companies visiting your site, delivered to Slack and your sales stack.
Default identity depth	Company-level; person-level through opt-in Enhanced Visitor Identification or Buyer ID.	Person-level for US traffic; company-level globally.
Where it lives	Inside the wider ZoomInfo platform (Sales or Marketing).	Its own app, with 50+ integrations.
Pricing model	No published price; credits affect export and integration cost.	Published self-serve tiers, including a free company-level tier.
Install	The ZoomInfo Script, by hand or through Google Tag Manager.	A pixel in the site header.

This page stays at the positioning level and turns every difference into something you can verify.

How do WebSights and RB2B identify visitors?

They describe different methods. ZoomInfo's WebSights page says the software does a reverse IP-address lookup and matches the visitor's IP address to a company; its implementation guide adds an optional Enhanced Visitor Identification setting that uses third-party cookies and ZoomInfo's identity graph. RB2B's homepage FAQ says it identifies visitors who were already known in its publisher network, using a mix of first- and third-party cookies, device IDs, and IP addresses, and that it also uses Demandbase's reverse-IP network for company-level matches.

What that means for a buyer:

• Method is not accuracy. Both descriptions tell you how a match is attempted, not how often it is right on your site. Measure that yourself with the match-rate calculator: pick a stated denominator, score a precision sample, and compare the usable rates.
• Headline rates are vendor claims. RB2B's homepage advertises a headline resolution percentage, and ZoomInfo's guide says Enhanced Visitor Identification can double its Visitor Resolution Rate. Treat both as claims to test, not benchmarks to quote.
• Person-level output raises the bar. Both vendors describe notice or consent duties on their own pages: ZoomInfo requires consent from visitors in California and the EU/UK and a notice for Buyer ID; RB2B says its global company-level ID needs a consent tool. Your privacy owner decides what your site needs.

How do WebSights and RB2B pricing compare?

The difference is in what is public. ZoomInfo does not publish a WebSights price on its product page or implementation guides (fetched 2026-09-15), and those guides say some WebSights actions — CSV export and pushes to Google Analytics or Adobe Analytics — use ZoomInfo credits. RB2B publishes self-serve plan pricing on its pricing page, including a free company-level tier. Plan details change often, so check both vendors' current terms for your traffic volume and needed features before you build a business case.

Compare total cost, not list price. For WebSights, ask about bundling with other ZoomInfo modules and yearly credit use. For RB2B, ask how monthly resolution limits map to your traffic, and which integrations your tier includes.

How do you install WebSights or RB2B?

Both install as a script on your site. ZoomInfo's guides describe adding a domain, then placing the ZoomInfo Script at the start of each page's <head> or through Google Tag Manager, and confirming a test visit registers in WebSights. RB2B's homepage describes installing its pixel in the site header and connecting Slack or Teams and your CRM. Either way, the tag is a production change: it needs an owner, a consent decision, a duplicate-firing check, and a rollback plan.

Run the same post-launch tag QA script on whichever tool you trial. The WebSights explainer includes a vendor-neutral install and QA checklist mapped to ZoomInfo's documented setup steps; most items apply to RB2B's pixel too.

What should you verify before choosing either?

Verify identity depth, traffic quality, CRM handoff, alert behavior, tag ownership, data review, and the business case — for both vendors, with the same questions. This checklist turns each public positioning claim into a proof request and a stop rule.

Decision point	ZoomInfo WebSights: what to verify	RB2B: what to verify	Safer buyer question	Stop rule
Core job	ZoomInfo positions WebSights around B2B visitor identification, bot filtering, and workflow action. Verify what it returns for your actual pages, visitors, and plan.	RB2B positions itself around identifying visitors and sending profile-style signals through the sales stack. Verify which visitor types, regions, and destinations apply to your account.	What exact evidence will the tool return for our site, and how is that evidence labeled?	Stop if either answer turns a marketing headline into identity certainty without a sample output.
Identity depth	Ask whether each result is company-level or person-level through Enhanced Visitor Identification or Buyer ID, and which of those your plan includes.	Ask the same, especially for names, LinkedIn profiles, and emails, and how the US-only boundary is enforced.	Which fields are observed, inferred, enriched, submitted by a visitor, or matched by a vendor?	Stop if sales cannot tell a company signal from a named-person signal.
Traffic quality	WebSights describes Automatic Traffic Filtering. Ask for the classification output on your site and how false positives are handled.	Ask how RB2B handles bots, repeat visits, employees, customers, agencies, and low-fit visitors before a signal reaches sales.	How does the vendor reduce noise, and how will we know when a signal should be held for review?	Stop if noise filtering is only a promise, not a testable field or report.
CRM handoff	Ask which CRM or analytics objects and fields can be written, how dedupe works, and what each push costs in credits.	RB2B's integrations page describes HubSpot and Salesforce paths. Ask for the exact object, field, dedupe, and rollback behavior.	What changes in the CRM after a visit, who owns the record, and what evidence label travels with it?	Stop if the tool creates leads, contacts, or tasks before source, identity depth, and owner fields are defined.
Slack or internal alerts	Verify that the alert destination you need is supported and that alert text can show evidence and next action.	RB2B's pages describe Slack and Teams delivery. Verify the message format, filters, and suppression controls.	Can every alert say what is known, what is inferred, and what the recipient should do next?	Stop if alert copy encourages creepy outreach such as "I saw you on our site."
Tag implementation	Script by hand or through Google Tag Manager; document owner, consent placement, and QA plan.	Header pixel; ask the same questions and require a production test plan.	Who owns tag scope, duplicate firing, consent evidence, and rollback?	Stop if no one can run a controlled test and verify the downstream records.
Platform proof	HubSpot, Salesforce, Google Tag Manager, and Slack docs plan workflow boundaries; they do not prove vendor identity claims.	Same boundary for RB2B integration claims.	Which part is vendor capability, and which part is configuration our team owns?	Stop if platform docs are used as proof that a vendor identifies people.
Data review	Ask what data enters the system, where it is stored, who sees it, how long it is kept, and how opt-out works.	Ask the same questions and record the answers before production access.	What privacy, security, and data-processing review must happen before routing signals?	Stop if legal, privacy, security, or procurement review is incomplete.
Business case	Treat dashboards and case studies as prompts for proof, not benchmarks.	Same for any profile, email, pipeline, or meeting claim.	Which outcomes will we measure with our own CRM and analytics data after launch?	Stop if the business case depends on borrowed vendor metrics or unverified match rates.

How do you compare identity depth without overclaiming?

Force both vendors into the same evidence language, and keep those labels in the CRM, the demo scorecard, and the alert copy:

Evidence label	Meaning	Safe next action
company_level	The signal points to a company, account, domain, or firmographic match.	Research the account, check fit, look at pages viewed, or route for internal review.
known_contact	The person is already known through a form, login, CRM record, or other first-party path.	Update the record or notify the owner if your policy allows it.
vendor_claimed_profile	A vendor claims a person, profile, email, or social identity.	Require current vendor proof, data-review approval, and conservative alert wording before sales acts.
needs_review	There is a signal, but identity, fit, owner, or permission is unclear.	Hold the signal for RevOps or marketing review.
do_not_route	The visit is internal, customer, bad-fit, ambiguous, suppressed, or unsupported.	Suppress alerts and document the stop reason.

If either vendor cannot keep these labels from website activity through to your CRM, alert, or review queue, the workflow may still work, but the burden moves to your RevOps team. That is a build-vs-buy question. Do not relax the evidence standard because the demo looks polished.

What proof should you request before a demo, trial, or purchase?

Ask ZoomInfo and RB2B the same questions so the comparison stays fair.

1. What exact evidence does the tool return for an anonymous website visit?
2. Which outputs are company-level, known-contact, contact-enriched, or vendor-claimed person outputs?
3. Which fields are observed directly, inferred, enriched, matched by a partner, or submitted through a first-party form?
4. What traffic is excluded as automated, internal, customer, agency, low-fit, or ambiguous?
5. Which HubSpot objects and properties can be created or updated today?
6. Which Salesforce leads, contacts, accounts, campaigns, tasks, or custom fields can be touched today?
7. What dedupe rules prevent duplicate leads, accounts, or tasks?
8. Can Slack or internal alerts show the source, identity depth, confidence, safe next action, and stop rule?
9. How is the tag installed, tested, versioned, and rolled back?
10. What happens when Google Tag Manager trigger scope or consent requirements change?
11. What data-processing, retention, access, suppression, opt-out, and deletion controls are documented for your use case?
12. Which claims in the sales deck are public documentation, account-specific proof, or non-transferable customer examples?
13. Which prices, limits, credits, seats, regions, contact fields, and integrations apply to your plan now?
14. Which claims should be removed from the internal business case because they rely on general vendor metrics?

The vendor-neutral, longer version is the 32-question vendor due-diligence checklist. Run it on both vendors before either gets tag, CRM, or alert access.

Which one should you evaluate first?

Evaluate WebSights first if your team already uses ZoomInfo data or wants company-level signals inside the ZoomInfo platform, with bot filtering you can inspect before anything reaches the CRM. Evaluate RB2B first if you specifically want to inspect person-level, profile-style signals for US traffic delivered to Slack, Teams, or your CRM. Neither is a recommendation to buy. Each is a reason to ask that vendor for exact proof first.

For WebSights, ask for sample outputs, identity-depth labels, field maps, credit use for your planned exports and integrations, and filtered-traffic examples. For RB2B, ask for eligible-traffic definitions, how the US-only boundary is enforced, field-level outputs, suppression and opt-out handling, CRM object changes, and alert copy controls. Person-level signals can be misused fast, so the proof burden for them is higher, whichever vendor supplies them.

When should you choose neither yet?

Pause the purchase or trial if the next action needs more certainty than either vendor can document. Common stop conditions:

• Sales wants to message named people based only on anonymous account activity.
• The vendor cannot show which fields are observed, inferred, enriched, or submitted.
• No one owns CRM field mapping, dedupe, and rollback.
• Slack or email alerts cannot show evidence labels and stop rules.
• Internal, customer, employee, competitor, agency, and low-fit traffic are not filtered or labeled.
• The team has not separated explicit form submissions from inferred visitor or account signals.
• The business case depends on vendor headline metrics instead of your own measurement plan.
• Privacy, security, legal, or data-processing review is incomplete.
• Google Tag Manager or direct-code deployment has no QA owner.

If any of those is true, run the vendor due-diligence checklist before buying. If the deeper question is whether to buy at all, use the build-vs-buy worksheet first.

What is a simple evaluation sequence?

1. Write the job: "We need account-level website signals for internal review," or a more specific version.
2. Mark the identity depth required: company, known contact, or vendor-claimed profile.
3. Choose the destination: CRM company or account, CRM task, Slack alert, report, or hold queue.
4. Ask both vendors for the same evidence sample and field map.
5. Run a controlled tag and CRM QA test before production routing.
6. Compute each tool's usable match rate on the same denominator with the match-rate calculator.
7. Approve only alert wording that explains what is known, inferred, and unsafe to assume.
8. Measure your own post-launch outcomes instead of copying vendor metrics.

Claim ledger

Claim used in this guide	Source boundary	Review rule
WebSights is positioned around companies and decision-makers exploring a site, with Automatic Traffic Filtering, and identifies visitors mainly by reverse IP lookup.	ZoomInfo WebSights product page and implementation guide, fetched 2026-09-15.	Re-verify before changing positioning or method language.
WebSights person-level signals come through opt-in Enhanced Visitor Identification or Buyer ID; ZoomInfo requires consent from California and EU/UK visitors.	ZoomInfo WebSights and ZoomInfo Script implementation guides, fetched 2026-09-15.	ZoomInfo's minimum only; not legal advice.
ZoomInfo publishes no WebSights price; exports and analytics pushes use credits.	ZoomInfo product page and implementation guide, fetched 2026-09-15.	Add a price only with a current primary source.
RB2B positions itself around person-level ID for US traffic, company-level ID globally through Demandbase, header-pixel install, and Slack, Teams, and CRM delivery.	RB2B homepage and integrations page, fetched 2026-09-15.	Treat person-level language as vendor positioning that needs buyer proof.
RB2B publishes self-serve pricing, including a free company-level tier.	RB2B pricing page, fetched 2026-09-15.	Plan details change; re-check before quoting.
Headline resolution rates from either vendor are claims, not benchmarks.	RB2B homepage; ZoomInfo WebSights Implementation Guide; fetched 2026-09-15.	Never republish as measured performance.
HubSpot, Salesforce, Google Tag Manager, and Slack docs support workflow boundaries only.	Official platform docs, HTTP 200 rechecked 2026-09-15.	Do not use platform docs as proof that either vendor identifies people.
No winner, match rate, legal outcome, ROI, or hands-on test result is claimed.	Not used.	Add only with current primary-source proof.

FAQ

Is ZoomInfo WebSights better than RB2B?

Public sources do not prove that. They support a comparison of positioning — company-level inside a platform versus person-level for US traffic in its own app — but not a winner. Compare the proof each vendor gives for your traffic, CRM, alerting rules, data review, and allowed sales actions.

Does RB2B identify actual people?

RB2B's homepage says it identifies people on your site for US traffic, and delivers names, LinkedIn profiles, and email addresses. Treat that as a claim to verify, not as permission to contact someone. Ask which visitors are eligible, what data source supports each match, and what opt-out and suppression controls apply.

Does ZoomInfo WebSights identify companies or people?

By default, ZoomInfo describes WebSights as matching visitors to companies by reverse IP lookup. Person-level signals come through opt-in Enhanced Visitor Identification and Buyer ID, which carry notice and consent duties under ZoomInfo's own guidance. The WebSights explainer covers both.

Which is cheaper, WebSights or RB2B?

That cannot be answered from public pages alone. RB2B publishes self-serve pricing with a free company-level tier; ZoomInfo does not publish a WebSights price, and some WebSights actions use credits. Get a quote for your traffic volume and feature needs from both before you compare.

What is the safest CRM handoff?

A reviewed signal with source, identity depth, review status, owner, safe next action, and stop-rule fields. Avoid automatic sales outreach from weak anonymous matches or unlabeled profile claims.

What should we do after this comparison?

Shortlist proof requests from the checklist above. Then run the vendor due-diligence checklist before giving either tool production access, and measure each tool on your own traffic with the match-rate calculator.