Zillow · Zillow Privacy Notice · View original document ↗

Data Collection from Third-Party Sources and Data Brokers

Medium severity Medium confidence Explicitdocumentlanguage Unique · 0 of 325 platforms
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Document Record

What it is

Zillow may buy or receive your personal data from outside sources such as data brokers and advertising companies, then combine it with what it already knows about you to build a more detailed profile.

This analysis describes what Zillow'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)

Data enrichment from third-party brokers means Zillow's profile of you may include information you never directly provided to the company, potentially including demographic, financial, or behavioral data from other platforms.

Interpretive note: The document describes third-party sources at a categorical level without enumerating specific vendors or data types received, limiting the ability to fully assess the scope of enrichment practices.

Consumer impact (what this means for users)

Zillow may combine information purchased from data brokers or received from advertising partners with your on-platform activity, meaning its profile of you could be broader than what you consciously shared, and this combined data may be used for targeting and service personalization.

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.
  • Delete Your Data
    Submit a data deletion request through Zillow's privacy portal to request removal of personal information, including data received from third-party sources.

How other platforms handle this

Anthropic Medium

Anthropic obtains personal data from third party sources in order to train our models. Specifically, we train our models using data from the following sources: Publicly available information via the Internet; Datasets that we obtain through commercial agreements with third party businesses; Data tha...

Groq Medium

We (or third parties acting on our behalf) may receive or collect additional information about you from public databases, partners, social media platforms, conference hosts, event companies, and other third parties that supplement the information we collect directly or automatically as described abo...

PlanetScale Medium

When you visit the Careers portion of our websites, we collect the information that you provide to us in connection with your job application. This includes but is not limited to business and personal contact information, professional credentials and skills, educational and work history and other in...

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▸ View Original Clause Language DOCUMENT RECORD
"
We may receive personal information about you from third parties, including data brokers, advertising partners, real estate data providers, and other sources. We may combine this information with other personal information we have collected about you to improve our services and provide more personalized experiences.

— Excerpt from Zillow's Zillow Privacy Notice

ConductAtlas Analysis

Institutional analysis (Compliance & governance intelligence)

1) REGULATORY LANDSCAPE: Acquisition and use of data broker data engages the FTC's regulatory focus on data broker transparency and the CCPA/CPRA requirement to disclose categories of personal information collected from all sources, including third parties. The FTC has issued reports and guidance on data broker practices and has enforcement authority under Section 5 of the FTC Act. The CCPA requires that consumers be informed of third-party data sources in the privacy policy. 2) GOVERNANCE EXPOSURE: Medium. The provision is common in the industry but creates compliance obligations around accurate disclosure of data categories received from third parties, ensuring that third-party data is covered by the same opt-out mechanisms, and verifying that data broker sources comply with applicable privacy laws before onboarding. 3) JURISDICTION FLAGS: California's CPRA requires disclosure of categories of third-party sources from which personal information is collected; general descriptions such as 'data brokers' and 'advertising partners' may not satisfy the specificity requirements under CPRA regulations. States with comprehensive privacy laws (Virginia, Colorado, Connecticut) have similar transparency requirements. 4) CONTRACT AND VENDOR IMPLICATIONS: Data broker vendor agreements should require representations that data was collected with appropriate consent or legal basis, and that its use for Zillow's purposes is permitted. Procurement due diligence should include review of data broker privacy practices and any applicable state registrations (e.g., California's data broker registry under the Delete Act). 5) COMPLIANCE CONSIDERATIONS: Compliance teams should map all third-party data sources used for enrichment and confirm that data categories disclosed in the policy accurately reflect actual data flows. The California Delete Act (SB 362) requires data brokers operating in California to register and honor deletion requests; if Zillow's data broker vendors are subject to this law, their obligations may affect data enrichment workflows.

Full compliance analysis

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

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Applicable agencies

  • FTC
    The FTC has regulatory focus on data broker practices and can take action under Section 5 of the FTC Act against unfair or deceptive uses of third-party enrichment data.
    File a complaint →
  • State AG
    California's CPPA enforces CPRA disclosure requirements for third-party data sources, and California's Delete Act (SB 362) creates obligations for data brokers whose data Zillow may purchase.
    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

Provision details

Document information
Document
Zillow Privacy Notice
Entity
Zillow
Document last updated
May 5, 2026
Tracking information
First tracked
May 9, 2026
Last verified
May 9, 2026
Record ID
CA-P-007590
Document ID
CA-D-00425
Evidence Provenance
Source URL
Wayback Machine
Content hash (SHA-256)
d2177cd32c0778bdf2b989631cf90498c72c0da57b731114d71b367b8a080851
Analysis generated
May 9, 2026 20:32 UTC
Methodology
Evidence
✓ Snapshot stored   ✓ Hash verified
Citation Record
Entity: Zillow
Document: Zillow Privacy Notice
Record ID: CA-P-007590
Captured: 2026-05-09 20:32:53 UTC
SHA-256: d2177cd32c0778bd…
URL: https://conductatlas.com/platform/zillow/zillow-privacy-notice/data-collection-from-third-party-sources-and-data-brokers/
Accessed: May 13, 2026
Permanent archival reference. Stable identifier suitable for legal filings, compliance documentation, and research citation.
Classification
Severity
Medium
Categories

Other risks in this policy

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Frequently Asked Questions

What does Zillow's Data Collection from Third-Party Sources and Data Brokers clause do?

Data enrichment from third-party brokers means Zillow's profile of you may include information you never directly provided to the company, potentially including demographic, financial, or behavioral data from other platforms.

How does this clause affect you?

Zillow may combine information purchased from data brokers or received from advertising partners with your on-platform activity, meaning its profile of you could be broader than what you consciously shared, and this combined data may be used for targeting and service personalization.

Is ConductAtlas affiliated with Zillow?

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