Nextdoor Investor Presentation Deck

Definitions Metrics U.S. Household Neighborhoods Verified Neighbors/Users Daily Active Users (DAU) Weekly Active Users (WAU) Monthly Active User (MAU) Engagement Neighborhood penetration Local Business Claimed Pages Total Addressable Market (TAM) Definition A single (U.S.) residence containing at least one Current Verified Neighbor The number of active Launched (10+ member) neighborhoods. A "neighborhood" is a specific geographic area with a defined boundary. Neighborhoods do not overlap. The number of neighbors who are verified in a valid Launched (10+ member) or Pilot (< 10 member) neighborhood, and in good standing (i.e. not deleted, deactivated, or suspended.) Count of unique neighbors who have started a session or opened a content email on a given day Count of unique neighbors who have started a session or opened a content email over the trailing 7 days Count of unique neighbors who have started a session or opened a content email over the trailing 30 days Used to refer to neighbor activity - usually WAU unless otherwise specified U.S. Households (see above) divided by the total number of Households (claimed or otherwise) in the neighborhood. Local business pages that have been claimed by a Nextdoor partner Digital advertising spend in the U.S. excluding B2B (not addressable by Nextdoor). Source: eMarketer 34

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