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The policy authorizes sharing hashed email addresses and device advertising identifiers with third-party advertising partners, who may use this information to serve targeted ads to members and similar audiences both on Nextdoor and on other websites and services.
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
This provision authorizes cross-platform advertising data flows involving pseudonymous but potentially re-identifiable identifiers, and the geographic qualifier 'where permissible according to applicable law' indicates that the scope of this sharing varies by jurisdiction depending on applicable consent or opt-out requirements.
The updated footer no longer includes a direct link to the 'Do not Sell or Share My Personal Data' disclosure or control. Under California law and other US privacy regimes, platforms are required to provide clear and conspicuous access to consumer data sale opt-out mechanisms. If this link was the primary or most accessible pathway to that opt-out, its removal may complicate how users exercise statutory rights, though the underlying disclosure or control may remain available through other parts of the platform. Users should verify whether this opt-out functionality remains accessible through the main privacy policy page or account settings.
View change record →The updated footer no longer includes a direct link to the 'Do not Sell or Share My Personal Data' page. Previously, this link provided quick access to California Consumer Privacy Act (CCPA) opt-out controls from the footer menu. Users can likely still access these controls through the main Privacy Policy page or dedicated privacy settings, but the removal eliminates a prominent, footer-based navigation shortcut. You should verify whether this opt-out functionality remains accessible through other menu locations or settings.
View change record →Under this clause, the agreement permits Nextdoor to share hashed emails and advertising identifiers with third-party advertising networks, who may associate this data with other information they hold about you and use it to deliver targeted advertising across multiple platforms beyond Nextdoor.
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"Where permissible according to applicable law, we may share certain personal information, such as hashed emails and advertising identifiers, with our advertising partners that help serve targeted advertising to those Members or to similar audiences. Our advertising partners may be able to associate this information with you based on your advertising identifiers or other personal information they have about you. Our advertising partners may then use the information they collect to provide our Members with personalized ads on Nextdoor as well as on different websites and services, and to measure the effectiveness of their ads.Excerpt from Nextdoor's Privacy Policy
1. REGULATORY LANDSCAPE: This provision implicates GDPR (consent requirements under Article 6 and potentially Article 9 if combined with sensitive data), UK GDPR, CCPA (right to opt out of sale or sharing of personal information), and the FTC Act regarding unfair or deceptive data practices. EU and UK supervisory authorities (Ireland's DPC and the UK ICO) have enforcement authority over cross-border advertising data flows involving EU and UK residents. US state privacy laws in California, Colorado, Connecticut, and others impose opt-out or opt-in requirements for sharing personal data for targeted advertising. 2. GOVERNANCE EXPOSURE: High. The sharing of hashed emails and advertising identifiers with third-party advertising networks for cross-platform targeting is a high-exposure area under GDPR and CCPA. The policy conditions this sharing on being 'permissible according to applicable law' without specifying what consent or opt-out mechanisms apply in each jurisdiction, creating compliance mapping obligations for any organization operating in multiple geographies. 3. JURISDICTION FLAGS: EU and UK users are subject to GDPR and UK GDPR consent requirements for advertising cookies and identifier sharing. California residents have opt-out rights under CCPA for sharing personal information for cross-context behavioral advertising. Users in the 18 additional US states named in the policy may have similar opt-out rights. The enforceability of consent-by-continued-use for this purpose may be limited under GDPR. 4. CONTRACT AND VENDOR IMPLICATIONS: Businesses using Nextdoor's advertising services should assess whether their own data, when shared with Nextdoor (e.g., customer lists for matched audiences), is governed by adequate data processing agreements. The policy does not specify the identity of advertising network partners, which may complicate vendor due diligence for B2B compliance teams. 5. COMPLIANCE CONSIDERATIONS: Compliance teams should audit whether the opt-out mechanisms described in Jurisdiction-Specific Disclosures satisfy applicable legal standards for each geography. Data mapping should reflect third-party advertising network recipients as downstream processors or independent controllers depending on their role. Cookie Policy review is warranted given that advertising partners also collect data via cookies and similar technologies.
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This provision authorizes cross-platform advertising data flows involving pseudonymous but potentially re-identifiable identifiers, and the geographic qualifier 'where permissible according to applicable law' indicates that the scope of this sharing varies by jurisdiction depending on applicable consent or opt-out requirements.
Under this clause, the agreement permits Nextdoor to share hashed emails and advertising identifiers with third-party advertising networks, who may associate this data with other information they hold about you and use it to deliver targeted advertising across multiple platforms beyond Nextdoor.
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