Nextdoor Advertising Data Terms

Nextdoor Advertising Data Terms

Last updated February 2, 2026

These Nextdoor Advertising Data Terms (these "Ad Data Terms") form a legally binding contract between Nextdoor, Inc. and its Affiliates ("Nextdoor"), and the entity agreeing to these Ad Data Terms (the "Advertiser") (each, a "party" and together, the "parties"), and govern the use of data in connection with the Ad Service, including data that may be shared between the parties, and with respect to the processing of Personal Information. The term "Advertiser", as used herein, will apply on a several basis to the entity whose Ads will be serviced by Nextdoor under these Ad Data Terms and any Agency acting on its behalf. These Ad Data Terms form part of the Supplemental Terms and Policies, which are, in turn, incorporated by reference into the Ad Terms, where Nextdoor and Advertiser (each, as defined in the Ad Terms) entered into the Ad Terms. Capitalized terms not defined in these Ad Data Terms shall have the meaning set forth in the Nextdoor Advertising Terms Definitions.

1. Definitions.

a. "Anonymous Data" or "anonymized" refers to data that irreversibly no longer allow a natural person to be identified directly or indirectly.

b. "Advertiser-Provided Ad Data" means data (including any Personal Information) that Advertiser provides to Nextdoor in connection with Advertiser's access to and use of the Ad Service. Advertiser-Provided Ad Data may include, without limitation, Hashed Contact Data or Interaction Data.

c. "Campaign Details" are campaign instructions set forth in the Managed Ad Service Terms, Self-Service Terms, via the self-service campaign management platform, or by other means that may be provided by Nextdoor, solely when expressly associated with the applicable Advertiser, including, without limitation, Ads pricing information, Ads description, Ads placement information, and Ads targeting information.

d. "Collected Data" consists of Campaign Details, Performance Data, and Nextdoor Data.

e. "Hashed Contact Data" means hashed names, email addresses, phone numbers, physical addresses, or other hashed identifiers that Advertiser provides to Nextdoor for use in connection with the Ad Service.

f. "Nextdoor Ad Data" means Reporting Data and Tag Data.

g. "Performance Data" means data regarding a campaign gathered during delivery of Ads (e.g., number of impressions, interactions, and header information), but excludes Nextdoor Data, Campaign Details, and Tag Data.

h. "Reporting Data" means reports generated by Nextdoor measuring and analyzing Advertiser's Ad campaign(s).

i. "Repurposing" means retargeting a user or appending data to a user's non-public profile for purposes other than performance of the Managed Ad Service Terms or the Self-Service Terms.

j. "Nextdoor Data" is any data that is: (i) preexisting Nextdoor data used by Nextdoor in connection with delivery of the Ad Service; (ii) gathered in the course of providing the Ad Service, including, without restriction, during delivery of Ads, that identifies or allows identification of Nextdoor, Nextdoor Properties, or Nextdoor's brand, content, context, or users, as such; or (iii) entered by users on any Ad Service Properties other than User-Volunteered Data.

k. "Tags" means Advertiser's (including its Agency’s or its service providers') HTML tag, pixel, or other code or technology.

l. "Tag Data" means metrics and other analytics solely regarding the performance and effectiveness of Advertiser's Ad campaign with Nextdoor's users.

m. "User-Volunteered Data" is Personal Information collected from individual users by Nextdoor during delivery of Ads pursuant to the Ad Service, solely in cases where it is expressly disclosed to such individual users that such Personal Information is collected by Nextdoor on behalf of Advertiser.

2. Collected Data.

a. Advertiser Usage. Advertiser may use Collected Data, solely on an aggregated and de-identified basis and solely to assess the performance and effectiveness of Advertiser’s campaigns. Unless otherwise previously authorized by Nextdoor in writing, Collected Data shall not be used for any other purpose, including, without limitation, Repurposing. Notwithstanding the foregoing, Advertiser may use Performance Data for Repurposing, provided that such Performance Data is not joined or combined with any Campaign Details or Nextdoor Data. In this Section 2(a), Advertiser excludes any applicable Agency.

b. Agency Usage. Agency shall not: (i) use Collected Data unless Advertiser is permitted to use such Collected Data; or (ii) use Collected Data in ways that Advertiser is not allowed to use such Collected Data. Notwithstanding the foregoing, Agency may: (1) use Collected Data on an aggregated and de-identified basis solely for internal media planning purposes (but not for Repurposing); or (2) disclose qualitative evaluations of aggregated Collected Data to its clients and potential clients, solely for media planning purposes.

3. Nextdoor Ad Data Use Restrictions.

a. Advertiser shall ensure that: (i) Nextdoor Ad Data is only shared with companies or individuals acting on Advertiser's behalf as Advertiser's service providers or data processors; and (ii) Advertiser's service providers or data processors appropriately protect Nextdoor Ad Data, limit their use of the Nextdoor Ad Data, and keep Nextdoor Ad Data confidential and secure in accordance with best industry practice.

b. Advertiser may use Nextdoor Ad Data on an aggregated or de-identified basis solely for the purposes of: (i) optimizing Advertiser's Ad campaigns run via the Ad Service; (ii) assessing the effectiveness and performance of Advertiser's Ad campaigns run via the Ad Service; and (iii) planning Advertiser's Ad campaigns to run via the Ad Service.

c. Advertiser may retain any Nextdoor Ad Data for only as long as Advertiser has a legitimate business need to retain it.

d. Advertiser shall not:

i. Share Nextdoor Ad Data with third parties, except that Advertiser may share Tag Data solely with the third-party owner of the applicable Tag, provided that such third-party owner is bound by terms of use of such Tag Data that are at least as restrictive as set forth in Section 8, below;

ii. Utilize any Nextdoor Ad Data to serve targeted advertisements on or off the Nextdoor Properties, nor enable or allow any third party to do so;

iii. Permit or enable any code, pixel, or other tracking technology to attach or redirect to third-party tags, pixels, code, or other tracking technologies ("piggybacking") without prior written permission from Nextdoor;

iv. Resell, share, or otherwise distribute Nextdoor Ad Data, including in a manner that competes with the Ad Service provided by Nextdoor, including, by way of example and not limitation, by claiming to provide data that identifies Nextdoor's users, data of users that "look like" or share characteristics or behaviors of Nextdoor's users, or data about, originating from or otherwise related to Nextdoor, Nextdoor Properties, or Nextdoor's users;

v. Label, denote, or refer to in any manner any Nextdoor Ad Data (whether or not such data contains any personally identifiable information, personal data, or Personal Information) as being derived from Nextdoor, Nextdoor Properties, or Nextdoor's users;

vi. Utilize any Nextdoor Ad Data, including device IDs, advertising IDs, IP addresses, cookies, or other information relating to any Nextdoor user, nor transfer to, sell to or otherwise allow or enable any third party to make use of Nextdoor Ad Data or any information collected by any Tag;

vii. Attempt to re-identify any information provided by Nextdoor in de-identified or anonymized form in Reporting Data or attempt to associate any Reporting Data or Performance Data with any particular End User, household, or device;

viii. Use Nextdoor Ad Data to build, append to, edit, influence, or augment user profiles, including profiles associated with any mobile device identifier or other unique identifier that identifies any particular user, browser, computer, or device; and

ix. Use Nextdoor Ad Data to improve or enhance Advertiser’s systems, products, services, methodologies, technologies, or business, except as permitted herein.

4. Campaign Metrics.

Nextdoor may generate and provide Advertiser access to Nextdoor Ad Data through Advertiser's account with the Ad Service or by other means reasonably determined by Nextdoor (at its sole discretion).

5. Advertiser-Provided Ad Data.

a. Advertiser represents and warrants that Advertiser has a lawful basis (in compliance with Applicable Data Protection Laws) and/or all necessary rights and permissions to disclose Advertiser-Provided Ad Data to Nextdoor for the purposes set forth in these Ad Data Terms, and for Nextdoor’s access to and storage of information on an End Users’ devices, including the Nextdoor Pixel or other similar tracking technologies. Advertiser (including Agency, as applicable) must provide clear and comprehensive information to End Users in a sufficiently prominent notice regarding the access to and collection, sharing and use of Advertiser-Provided Ad Data that uses the Nextdoor Pixel or other similar tracking technologies including: (i) that Advertiser’s website or mobile app, as applicable, uses pixels or other tracking technologies operated by third parties, including Nextdoor, to collect information about how End Users use their website or mobile app; (ii) that the information is used to provide measurements and/or to target ads; (iii) how End Users can opt out of the collection and use of information for ad targeting; and (iv) where End Users can opt-out of the collection and use of information for ads targeted.

b. Advertiser will not share or otherwise provide Nextdoor with Advertiser-Provided Ad Data that: (i) Advertiser knows or reasonably should know is from or about children under the age of thirteen (13) or the legal age of consent in the applicable jurisdiction; or (ii) includes health information, financial information, or other special categories of information defined as sensitive personal information under Applicable Data Protection Laws or otherwise specified as Prohibited Data.

c. Nextdoor’s Use of Advertiser-Provided Ad Data. Nextdoor may use Advertiser-Provided Ad Data to provide the Ad Service, and Advertiser hereby grants Nextdoor a non-exclusive, worldwide, royalty-free, sub-licensable license to use Advertiser-Provided Ad Data to provide the Ad Service, including (without limitation) use of Advertiser-Provided Ad Data for the following purposes:

i. To generate and provide Reporting Data to Advertiser;

ii. To comply with Nextdoor’s obligations under Applicable Data Protection Laws, including, without limitation, to respond to an individual’s information or data subject requests as required under Applicable Data Protection Laws;

iii. To detect data security incidents or to protect against fraudulent or illegal activity;

iv. To improve Nextdoor's safety, security, and anti-fraud measures;

v. For Nextdoor's research and product development;

vi. For Optimization, provided, however, that: (1) Nextdoor will not use Interaction Data for Optimization unless (and to the extent allowed under Applicable Data Protection Laws) Interaction Data is aggregated with data collected from other advertisers or other sources; and (2) Nextdoor will not allow third parties to customize Ads shown on Nextdoor solely on the basis of Advertiser's Interaction Data;

vii. To the extent permissible under Applicable Data Protection Laws, to create aggregated, de-identified, or anonymized information, which Nextdoor may use for any lawful purpose;

viii. With respect to Interaction Data:

  1. To understand when Interaction Data about Advertiser's End Users is related to individual users of Nextdoor; and

  2. To deliver Advertiser's Ads on Nextdoor to End Users who interact with Advertiser Properties, for example, when Advertiser directs Nextdoor to create audiences consisting of such End Users; provided, however, that if Nextdoor creates these audiences for Advertiser, then: (a) Advertiser may not, and may not authorize any third party, to sell or transfer such audiences; and (b) Nextdoor shall not sell, transfer, or otherwise provide such audiences to other advertisers without Advertiser's permission;

ix. With respect to Hashed Contact Data, solely to match against Nextdoor's users in connection with providing the Ad Service; and

x. Otherwise with Advertiser’s permission.

xi. For the avoidance of doubt, Nextdoor will not share Interaction Data that Advertiser provides to Nextdoor with any third parties except: (a) to provide the Ad Service; (b) with Advertiser's permission; and (c) as required or permitted by Applicable Data Protection Laws.

6. Reporting Data.

Nextdoor will provide Reporting Data to Advertiser only on an aggregated and de-identified basis. Nextdoor will not share Reporting Data generated on Advertiser's behalf, or any portion thereof, with any third party unless: (a) Advertiser permits Nextdoor to do so; or (b) where Reporting Data generated on Advertiser's behalf has been combined with Reporting Data from multiple other third parties, and such combined information does not identify Advertiser.

7. User-Volunteered Data.

As between the parties, User-Volunteered Data is controlled by Advertiser, is subject to the Advertiser's privacy policy, and is deemed Confidential Information (as defined in the Ad Terms) of Advertiser.

8. Tags and Tag Data.

a. If Nextdoor makes the feature available (at its discretion), Advertiser may place Tags into its Ad Content, provided that Advertiser provides Nextdoor with: (i) the code or a means of identifying such code; (ii) the specific data that such code will collect or track; and (iii) how long such data will be retained before expiring or being deleted. Additionally, Advertiser must specifically identify whether such code includes any function for: (1) setting cookies; (2) creating or accessing local shared objects or HTML5 local storage; or (3) obtaining device IDs, advertising IDs, wireless IDs, user account information, geo-location, address book data, or other Personal Information.

b. Advertiser may allow the Tag to collect Tag Data, where such Tag Data is subject to the Nextdoor Ad Data use restrictions in Section 3 above, and Advertiser shall comply with all such terms in respect of the setting and operation of the Tag at all times.

c. To the extent that Advertiser collects Tag Data that includes Personal Information, Advertiser shall comply with all Applicable Data Protection Laws and these Ad Data Terms regarding the processing of such Personal Information and shall, where reasonably requested by Nextdoor, produce documentation to demonstrate such compliance.

9. Personal Information.

To the extent that Nextdoor processes Advertiser-Provided Ad Data that constitutes Personal Information, or otherwise processes Personal Information on behalf of Advertiser in the course of providing the Ad Service, the parties hereby agree to the Data Processing Addendum for the Nextdoor Ad Service, attached as Exhibit A hereto.

10. Notice.

If Advertiser collects Tag Data from End Users that is used with an Ad Service feature (for example, conversion tracking), Advertiser must provide clear notice to each End User and obtain any legally-required consent from each End User for the collection, sharing, and use of that Tag Data by Advertiser and Nextdoor.

11. Use of Third-Party Ad Servers.

If Advertiser uses a third-party Ad server (including any tags, pixel, or other code or technology placed in Ads) (collectively, a "Third-Party Ad Server"), such Third-Party Ad Server must be approved by Nextdoor (at its sole discretion) and may be used solely to collect metrics and analytics regarding the performance and effectiveness of Advertiser's campaign with Nextdoor’s users, subject to compliance with any data usage restrictions in the Managed Ad Service Terms, and these Ad Data Terms.

12. Privacy Policy.

Each party shall create and maintain a privacy policy on its website that complies with Applicable Data Protection Laws, and adhere to such privacy policy in all material respects.

EXHIBIT A

DATA PROCESSING ADDENDUM FOR THE NEXTDOOR AD SERVICE

This Data Processing Addendum for the Nextdoor Ad Service (this "DPA") applies to (and to the extent of any conflict takes precedence over) the Ad Terms, Ad Data Terms, and/or other applicable agreement (collectively, the "Agreement") between Nextdoor, Inc. and its Affiliates ("Nextdoor") and the entity agreeing to this DPA, the advertiser (the "Advertiser") (each, a "party", together, the "parties") for the use of Nextdoor's Ad Service. The term "Advertiser", as used herein, will apply on a several basis to the entity whose Ads will be serviced by Nextdoor under the Agreement and any Agency acting on its behalf.

This DPA applies to the extent that Nextdoor Processes Personal Data on behalf of Advertiser, including such Personal Data subject to Applicable Data Protection Laws. Capitalized terms not expressly defined herein shall have the meaning ascribed to them in the Nextdoor Advertising Terms Definitions, Ad Terms, or Ad Data Terms, as applicable.

1. Definitions.

For purposes of this DPA, the terms below have the meanings set forth below.

a. "Advertiser Personal Information" means Personal Information that is controlled by the Advertiser, and that is provided to and Processed by Nextdoor in the course of providing the Ad Service.

b. "Controller" means an entity which, alone or jointly with others, determines the purposes and means of the Processing of Personal Information.

c. "Personal Data Breach" means a breach of security leading to the accidental or unlawful destruction, loss, alteration, unauthorized disclosure of, or access to, Personal Information. For avoidance of doubt, Personal Data Breaches do not include unsuccessful attempts or activities that do not compromise the security of Personal Information, including, without limitation, unsuccessful log-in attempts, pings, port scans, denial of service attacks, or other network attacks on firewalls or networked systems.

d. "Process" and "Processing" mean any operation or set of operations which is performed on Personal Information or on sets of Personal Information, whether or not by automated means, such as collection, recording, organization, structuring, storage, adaptation or alteration, retrieval, consultation, use, disclosure by transmission, dissemination, or otherwise making available, alignment, or combination, restriction, erasure, or destruction.

e. "Processor" means an entity which Processes Personal Information on behalf of a Controller.

f. "Standard Contractual Clauses" refers (i) in respect to EU personal data, the clauses issued pursuant to the EU Commission Implementing Decision (EU) 2021/914 of 4 June 2021 on standard contractual clauses for the transfer of personal data to third countries pursuant to Regulation (EU) 2016/679 of the European Parliament and of the Council, available at: https://eur-lex.europa.eu/eli/dec_impl/2021/914/oj (“EU Standard Contractual Clauses”); and (ii) in respect to UK personal data, the International Data Transfer Addendum to the EU Standard Contractual Clauses, issued by the Information Commissioner and laid before Parliament in accordance with s.119A of the Data Protection Act 2018 on 2 February 2022 and in force since 21 March 2022.

g. "Sub-Processor" means an entity engaged a Processor, or any further subcontractor thereto, to Process Personal Information on behalf of and under the instructions of a Controller.​​

2. Scope.

This DPA applies to Advertiser Personal Information, to the extent such Advertiser Personal Information is subject to Applicable Data Protection Laws.

3. Roles of the Parties.

The parties acknowledge and agree that, as between the parties, with respect to Advertiser Personal Information subject to European Data Protection Laws, Nextdoor is the Processor and Advertiser is the Controller, and with respect to Advertiser Personal Information subject to CCPA, Nextdoor is the "service provider" and Advertiser is the "business" (as those terms are defined under CCPA).

4. Processing of Personal Information.

a. Advertiser's Processing of Personal Information. Advertiser shall, in connection with its use of the Ad Service, Process Personal Information in accordance with Applicable Data Protection Laws. For the avoidance of doubt, Advertiser’s instructions to Nextdoor for the Processing of Advertiser Personal Information shall comply with Applicable Data Protection Laws. Advertiser shall have sole responsibility for the accuracy, quality, and lawfulness of Advertiser Personal Information and the means by which Advertiser acquired Advertiser Personal Information.

b. Prohibited Data. Advertiser represents and warrants to Nextdoor that the Advertiser Personal Information does not and shall not include Prohibited Data.

c. Nextdoor's Processing of Personal Information. Nextdoor shall Process Advertiser Personal Information only to provide the Ad Service to Advertiser in accordance with the relevant agreement(s) between Nextdoor and Advertiser, and only on Advertiser’s documented instructions, except as required under Applicable Data Protection Laws, in which case Nextdoor shall inform Advertiser of the relevant legal requirement unless such information is prohibited by such Applicable Data Protection Laws. Nextdoor shall promptly inform Advertiser if Nextdoor reasonably finds that Advertiser’s documented instructions regarding Processing of Advertiser Personal Information would result in a violation of Applicable Data Protection Laws.

5. Details of the Processing.

The details of the Processing of Personal Information are set forth in Annex I hereto.

6. Obligations of Nextdoor.

When Processing Advertiser Personal Information in connection with the Ad Service, Nextdoor:

i. Shall, taking account of the nature of Processing and insofar as is possible, reasonably assist Advertiser, by appropriate technical and organizational measures, in fulfilling Advertiser’s obligations to respond to individuals’ requests to exercise rights granted under Applicable Data Protection Laws.

ii. Shall, taking account of the nature of Processing and information available to Nextdoor, reasonably assist Advertiser in complying with Advertiser’s obligations under Applicable Data Protection Laws, including Articles 32 to 36 of the GDPR, including, without limitation, with respect to Advertiser’s obligation to conduct data protection impact assessments or consultations as required under Applicable Data Protection Laws.

iii. Shall make available to Advertiser, at Advertiser’s reasonable written request, information necessary to demonstrate Nextdoor’s compliance with its obligations under Applicable Data Protection Laws.

5. Security Measures.

a. Nextdoor Security Measures. Nextdoor will implement and maintain appropriate technical and organizational measures designed to protect Personal Information against accidental or unlawful destruction, loss, alteration, unauthorized disclosure of, or access to Personal Information, as set forth in Schedule 1 to this DPA, and as required under Applicable Data Protection Laws; provided, however, that Nextdoor may update its security measures from time to time, so long as the updated measures do not materially decrease the overall protection of Personal Information.

b. Security Compliance by Nextdoor Personnel. Nextdoor will ensure that its personnel authorized to access Advertiser Personal Information are subject to appropriate confidentiality obligations and training.

c. Advertiser’s Security Responsibilities and Assessment.

6. Sub-Processors.

a. General Authorization to Appoint Sub-Processors. Advertiser acknowledges and agrees, and generally authorizes, that: (i) Nextdoor Affiliates may be engaged as Sub-Processors; and (ii) Nextdoor and its Affiliates may respectively engage third-party Sub-Processors in connection with the provision of the Ad Service. Nextdoor will provide Advertiser with a list of Sub-Processors upon Nextdoor’s receipt of Advertiser’s written request and shall notify Advertiser by reasonable means in advance of changes to such Sub-Processors engaged by Nextdoor. Nextdoor has entered into, and shall enter into, a written agreement with each Sub-Processor that includes data protection obligations on the Sub-Processor at least as protective as those set forth herein, to the extent applicable to the nature of Processing activities carried out by such Sub-Processor, and sufficient to satisfy requirements under Applicable Data Protection Laws.

b. Objection Right for New Sub-Processors. Advertiser may reasonably object to Nextdoor’s engagement of a new Sub-Processor, promptly and in writing, in accordance with the notice provisions set forth in the relevant agreement(s) between Nextdoor and Advertiser for provision of the Ad Service. If Advertiser objects to a Sub-Processor as permitted in this Section 6(b), Nextdoor will use commercially reasonable efforts to make available to Advertiser appropriate changes to the Ad Service to avoid the Processing of Personal Information by such Sub-Processor. If Nextdoor is unable to make available such changes within a reasonable period of time, not to exceed sixty (60) days, then Advertiser may, by written notice to Nextdoor, terminate the relevant Ad Service to the extent that the Ad Service cannot be provided by Nextdoor without the use of the objected-to new Sub-Processor.

c. Sub-Processor Agreements; Liability. Nextdoor shall be liable for the acts and omissions of its Sub-Processors, if such a Sub-Processor fails to fulfill its data protection obligations, to the same extent that Nextdoor would be liable if directly performing the services of such Sub-Processor.

7. Data Transfers.

a. Advertiser authorizes Nextdoor to make international transfers of Advertiser Personal Information only if: (i) Applicable Data Protection Laws for such transfers are respected; and (ii) the transfer is otherwise permitted by this DPA.

b. With respect to Advertiser Personal Information subject to European Data Protection Laws and transferred from the EEA or Switzerland, the Standard Contractual Clauses form part of this DPA and take precedence over the rest of this DPA to the extent of any conflict, and they shall be deemed completed as follows:

i. Where Advertiser acts as a Controller and Nextdoor acts as a Processor with respect to Advertiser Personal Information subject to European Data Protection Laws, Module 2 of the Standard Contractual Clauses applies.

ii. Where Advertiser acts as a Processor and Nextdoor acts as Advertiser’s Sub-Processor with respect to Advertiser Personal Information subject to European Data Protection Laws, Module 3 of the Standard Contractual Clauses applies.

8. Personal Data Breach.

a. Nextdoor shall notify Advertiser, without undue delay, of any Personal Data Breach of which Nextdoor becomes aware that impacts Advertiser Personal Information. Nextdoor shall take commercially reasonable steps, as it deems appropriate, to remediate the cause of such Personal Data Breach and mitigate potential adverse effects thereof.

b. As information becomes available and without undue delay, Nextdoor will provide Advertiser with information about the nature of such Personal Data Breach, the categories and approximate numbers of Personal Information records impacted, steps taken to remediate the cause of such Personal Data Breach and to mitigate potential adverse effects, steps Nextdoor recommends Advertiser take to address such Personal Data Breach, and other information required to be provided to Advertiser under Applicable Data Protection Laws.