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 Neighbor retention 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 3 month MAU is defined as active in the 30 days preceding day 90, 6 month is active in the 30 days preceding day 180, 12 month is active in the 30 days preceding day 360, and 24-month is active in the 30 days preceding Shown for All-time Verified Neighbors joining in 2020. 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 32

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