Nextdoor · Nextdoor Privacy Policy · View original document ↗

Third-Party Advertising Data Sharing

High severity Uncommon · 28 of 325 platforms
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Document Record

What it is

Nextdoor shares your personal data, including your neighborhood activity and inferred interests, with outside advertising companies to show you targeted ads both on Nextdoor and on other websites and apps.

This analysis describes what Nextdoor's agreement states, permits, or reserves. It does not constitute a legal determination about enforceability. Regulatory applicability and practical outcomes may vary by jurisdiction, enforcement context, and individual circumstances. Read our methodology

ConductAtlas Analysis

Why it matters (compliance & governance perspective)

Your neighborhood activity, posts, and inferred personal interests are shared with external advertisers, meaning your data leaves Nextdoor's control and may be used to build broader advertising profiles about you across the internet.

Consumer impact (what this means for users)

Data about your neighborhood, your posts, and your inferred interests is shared with third-party advertisers who may use it to target you with ads on other platforms, creating a data trail extending well beyond the Nextdoor app.

What you can do

⚠️ These actions may provide transparency or partial mitigation but may not fully address the underlying issue. Effectiveness varies by jurisdiction and individual circumstances.
  • Opt Out of Arbitration
    Open the Nextdoor app, navigate to Settings, select Privacy, then Advertising Preferences to adjust data sharing for targeted advertising.

How other platforms handle this

Lime Medium

We may share your information with third-party advertising partners to provide you with targeted advertising. We also work with third-party analytics providers who help us understand how users interact with our Services. These third parties may use cookies, web beacons, and similar tracking technolo...

Zoom Medium

We work with third-party advertising partners to market our Products, and we share personal data with advertising networks and social media companies to serve ads. We also use analytics providers to help us understand how users interact with our Products.

Notion Medium

We may share your personal information with third-party vendors and service providers that perform services on our behalf, such as payment processing, data analysis, email delivery, hosting services, customer service, and marketing assistance. We may also share your personal information with busines...

See all platforms with this clause type →

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▸ View Original Clause Language DOCUMENT RECORD
"
We share information with third-party advertising partners and analytics providers to show you relevant advertising on and off our platform. We may share your information with advertising partners who assist us in delivering advertising on our Services and on third-party platforms.

— Excerpt from Nextdoor's Nextdoor Privacy Policy

ConductAtlas Analysis

Institutional analysis (Compliance & governance intelligence)

(1) REGULATORY FRAMEWORK: Under CPRA §1798.120 and §1798.135, sharing personal information for cross-context behavioral advertising constitutes 'sharing' triggering the right to opt out; businesses must honor Global Privacy Control (GPC) signals as opt-out mechanisms per CPPA regulations effective 2023. GDPR Art. 6(1)(a) requires explicit consent for behavioral advertising; ePrivacy Directive Art. 5(3) governs cookie-based tracking for advertising. FTC Act Section 5 applies to deceptive advertising data practices. Enforced by CPPA, California AG, EU DPAs, ICO. (2)

Full compliance analysis

Regulatory citations, enforcement risk, and due diligence action items.

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Applicable agencies

  • FTC
    FTC enforces against unfair or deceptive advertising data sharing practices under Section 5 of the FTC Act.
    File a complaint →
  • State AG
    California CPPA enforces CPRA opt-out rights for sharing personal data for cross-context behavioral advertising.
    File a complaint →

Applicable regulations

CCPA/CPRA
California, USA
Connecticut Data Privacy Act Amendments
US-CT
CAN-SPAM
United States Federal
FTC Act Section 5
United States Federal
Indiana Consumer Data Protection Act
US-IN
Kentucky Consumer Data Protection Act
US-KY
Universal Opt-Out Mechanism Expansion 2026
US
VPPA
United States Federal

Provision details

Document information
Document
Nextdoor Privacy Policy
Entity
Nextdoor
Document last updated
May 5, 2026
Tracking information
First tracked
May 8, 2026
Last verified
May 8, 2026
Record ID
CA-P-005775
Document ID
CA-D-00428
Evidence Provenance
Source URL
Wayback Machine
Content hash (SHA-256)
fcb86a9412b32f3f70facf7dbcc58246beaa7d3ec0f21059177b214f248331bf
Analysis generated
May 8, 2026 00:25 UTC
Methodology
Evidence
✓ Snapshot stored   ✓ Hash verified
Citation Record
Entity: Nextdoor
Document: Nextdoor Privacy Policy
Record ID: CA-P-005775
Captured: 2026-05-08 00:25:36 UTC
SHA-256: fcb86a9412b32f3f…
URL: https://conductatlas.com/platform/nextdoor/nextdoor-privacy-policy/third-party-advertising-data-sharing/
Accessed: May 13, 2026
Permanent archival reference. Stable identifier suitable for legal filings, compliance documentation, and research citation.
Classification
Severity
High
Categories

Other risks in this policy

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Frequently Asked Questions

What does Nextdoor's Third-Party Advertising Data Sharing clause do?

Your neighborhood activity, posts, and inferred personal interests are shared with external advertisers, meaning your data leaves Nextdoor's control and may be used to build broader advertising profiles about you across the internet.

How does this clause affect you?

Data about your neighborhood, your posts, and your inferred interests is shared with third-party advertisers who may use it to target you with ads on other platforms, creating a data trail extending well beyond the Nextdoor app.

How many platforms have this type of clause?

ConductAtlas has identified this type of provision across 28 platforms. See the full comparison.

Is ConductAtlas affiliated with Nextdoor?

No. ConductAtlas is an independent monitoring service. We are not affiliated with, endorsed by, or sponsored by Nextdoor.