Knock2 vs Visitor

Knock2 identifies website visitors, builds profiles, scores visits, and routes leads into sales workflows. It identifies companies globally, while names and contact details for individuals are available only for US traffic. Profiles can include a visitor’s name, title, verified work email, phone, company, and pages viewed. Its AI lead-scoring agent evaluates visits against a team’s description of its ideal customer profile. Workflows can alert sales representatives in Slack, create CRM records, and enroll visitors in sales sequences. Listed connections include HubSpot, Salesforce, Attio, Slack, Microsoft Teams, Apollo, Outreach, Instantly, Smartlead, Zapier, and webhooks. MCP and REST API access also connects with AI tools such as Claude, Claude Code, Cursor, and ChatGPT. Knock2 is available on web and through an API. Paid plans start at $199 a month, billed monthly, for up to 600 contacts per month and 3,600 credits. A 7-day trial is available; there is no free plan. Monthly credits reset each billing month, and exceeding an allocation requires upgrading or waiting for the reset.

Visitor is a web service that identifies companies behind website visits and shows what those companies viewed and how often they return. Its dashboard can display company name, location, organization details, and visit history, with filters for country, date, or activity. Page insights include URL history, visit counts, and a chronological timeline for each company; CSV export is included in Starter and Growth. The product is presented for B2B prospecting, marketing attribution, account-based targeting, content performance, partner discovery, and competitive intelligence. Installation uses an asynchronous JavaScript snippet described as under 1 KB, with no dependencies and a setup time of less than five minutes. Visitor says it filters bots, residential IPs, and mobile carrier IPs, and that typically 10–30% of B2B traffic can be identified. It identifies companies, not individual people, and says it does not collect personal data or set cookies. Its privacy description includes hashing IPs with a daily rotating salt and support for a notrack opt-out parameter. The free plan is €0 forever for 25 identified companies over the lifetime of one website. Starter is €25 a month and Growth is €199 a month.