# Concepts (https://www.getfounderhq.com/docs/analytics/concepts)

Six short pages. Read the one you need, not all of them.

- [Identity and contacts](/analytics/concepts/identity-and-contacts) — how an
  anonymous visitor becomes one contact across devices.
- [Sessions](/analytics/concepts/sessions) — how FounderHQ groups events into
  visits, and when a visit ends.
- [Consent and privacy](/analytics/concepts/consent-and-privacy) — granted,
  denied, and off, and what each state sends.
- [Accounts and groups](/analytics/concepts/accounts-and-groups) — measuring
  companies, not only seats.
- [Attribution](/analytics/concepts/attribution) — Introduced by and Closed
  by, and how each payment gets a source.
- [Bot traffic policy](/analytics/concepts/bot-traffic-policy) — why crawler
  visits never reach your metrics or your bill.

New here? Start with
[What FounderHQ analytics is](/analytics/getting-started/what-founderhq-analytics-is).