Second-party data refers to another company’s first-party data that is shared or sold directly between the two parties. In this data-sharing arrangement, both parties exchange the data with mutual consent. This type of data sharing often occurs through trusted partnerships, collaborations, or direct agreements between companies.
The exchange of second-party data relies on high trust between the two parties. Both organizations should know that the shared data is accurate, relevant, and obtained with proper consent from the individuals involved.
Since second-party data originates from another company’s first-party data, it is often considered to be of higher quality and accuracy than third-party data from external sources.
You might also like:
Second-party data
-

We checked 59 hospital websites. 73% kept tracking visitors after opt-out.
A new study by Piwik PRO and Verified Data scanned 59 major US hospital and clinic websites for tracking and data compliance. The findings show just how common it is for major US healthcare websites to run marketing tools that weren’t built for a regulated environment. What we actually found Across the 59 scanned sites,…
-

HEALTHCARE WEBSITE TRACKING REPORT 2026: Are healthcare companies one audit away from a compliance crisis?
A research-backed analysis of tracking practices across 59 US healthcare websites – and what organizations should do about it.
Other definitions
Recent posts from Piwik PRO blog
- We checked 59 hospital websites. 73% kept tracking visitors after opt-out.
- HEALTHCARE WEBSITE TRACKING REPORT 2026: Are healthcare companies one audit away from a compliance crisis?
- Anonymous website visitor tracking: How to do useful analytics without personal data [Updated]
- What is PII, non-PII, and personal data? [Updated]
- What is first-party data and how does it benefit your marketing strategy [Updated]
- Digital marketing analytics: The beginner’s guide to data-driven marketing success [Updated]
- We’re introducing Piwik PRO MCP Beta – get answers from your data without building a single report
- Google is changing how GA4 and Google Ads share data: Here’s how it puts your compliance at risk