Instantly turn anonymous traffic into pipeline.

Knock2 uses device fingerprinting combined with an identity graph built from consented publisher login data. When someone logs into a major publisher site (think CNN, eBay, and other partners in our data co-op), their identity is tied to their device. When that same device later visits your site, our pixel matches it back to the person. It's the same underlying technology that powers retargeting pixels from Meta, Google, and LinkedIn.

Traditional visitor ID tools rely on IP address lookup, which fails for anyone on home WiFi, mobile, or a VPN, which is most B2B traffic. Device-level matching is why we can reach 93%* account-level and 62%* person-level identification on US traffic.

The 93%* figure refers to account-level identification, meaning Knock2 can tell you which company a visitor is from 93%* of the time. It's measured against "engaged sessions," which Google Analytics defines as any visit that lasts 10 seconds or longer, or includes 2 or more pageviews.

The 62%* figure is for person-level identification (name, email, title) on US traffic, measured the same way. We publish both numbers because they answer different questions: which companies are on my site, and which individuals can I reach out to.

Account-level identification tells you which company a visitor is from. It's useful for account-based marketing, territory routing, and understanding which target accounts are actively researching you.

Person-level identification tells you exactly who the individual is: name, title, work email, phone, and LinkedIn profile. Person-level data is only available for US traffic due to privacy regulations in other regions. Most teams use both, with account coverage for breadth and person-level for direct outreach.

Three main things. First, the underlying technology: Knock2 combines multiple identity graphs into a waterfall rather than relying on a single data source, which is why our match rates are higher than tools built on one provider.

Second, it's device-level, not IP-level. IP lookup fails for anyone on home WiFi, mobile, or a VPN, which describes most B2B traffic today.

Third, the product doesn't stop at identification. Every plan includes native integrations with HubSpot, Salesforce, Apollo, Outreach, Lemlist, and Slack, plus buying committee expansion so you reach 3 to 5 relevant buyers per account instead of just the one who visited. There are no per-seat fees.

Yes. Native integrations are built for HubSpot, Salesforce, Slack, Apollo, Outreach, Lemlist, Instantly, and Clay. For anything not on that list, webhooks cover Zapier, Make, n8n, and any other tool that accepts them.

Identified visitors can be routed in real time to any of these based on filters you control: lead score, pages visited, firmographics, persona match, UTMs, or any combination. If you don't use a traditional CRM, Knock2 also works well with just Slack and Google Sheets.

Yes. Knock2 uses the same underlying technology as ad retargeting pixels from Meta, Google, and LinkedIn, which is how Instagram shows you ads for a product you only looked at once on someone else's site.

Our data comes from consented publisher login co-ops: major publisher sites that users have signed into, tying their identity to an anonymous device fingerprint. When that same device later visits your site, we match it back to the identity that was originally consented to share.

Account-level identification works globally. Person-level identification (with names, emails, and contact details) is limited to US traffic by design. This is how Knock2 stays compliant with GDPR, CCPA, and the ePrivacy Directive in Europe.

You won't see individual European or Asian visitors' personal details, but you will see which companies are visiting, which is sufficient for ABM targeting. Cookie consent banners and privacy notices on your own site remain your responsibility, the same as they are for any analytics or advertising tool.

Most teams see strong ROI starting at around 2,000 US monthly visitors. Below that, the signal can get thin, though account-level identification is still valuable for high-ticket ABM where each identified buyer is worth significant outreach investment.

A rough calculation: at 2,000 US visitors, about 15 to 20% are typically a fit for your ICP, and about 30 to 40% of those can be identified at the person level. That nets around 100 to 150 qualified contacts per month. Above 10,000 visitors, teams routinely attribute six-figure pipeline to identified traffic within their first 60 days.

Plans start at $199/month (Startup) and scale with included credits. Identifying an account costs 1 credit, identifying a person costs 6 credits, and prospecting additional contacts at an account costs 3 credits.

Most teams land on Growth ($499) or Scale ($999) once they see their actual traffic volume. Every plan includes a 7-day free trial, and you can cap your usage at any time if you want hard control over spend.