See why more B2B teams are switching to Knock2.

The 93%* figure refers to account-level identification on engaged sessions (Google Analytics defines an engaged session as 10 seconds or more, or 2+ pageviews). The 62%* figure is for person-level identification 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.

Knock2 uses device fingerprinting combined with an identity graph built from consented publisher login data. When someone logs into a major publisher site, 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. Device-level matching is why Knock2 can reach 93%* account-level and 62%* person-level identification on US traffic.

Three things customers point to most often. First, match rates are higher because Knock2 combines multiple identity graphs in a waterfall rather than relying on a single data source. Second, device-level identification beats IP lookup for any visitor on home WiFi, mobile, or a VPN, which is most B2B traffic. Third, 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. No per-seat fees.

Account-level identification tells you which company a visitor is from. 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.

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.

Yes. Knock2 uses the same underlying technology as ad retargeting pixels from Meta, Google, and LinkedIn. Our data comes from consented publisher login co-ops, tying identity to an anonymous device fingerprint.

Plans start at $199/month (Startup) and scale with included credits. Most teams land on Growth ($499) or Scale ($999). Every plan includes a 7-day free trial.