Privacy Implications of Xandr (AppNexus)
Xandr (AppNexus) is classified as a high-risk advertising technology with a prevalence of 0.2% across our monitored dataset. When a website deploys Xandr (AppNexus), it creates a data channel between the visitor's browser and adnxs.com, allowing the collection of browsing behavior, page interactions, and potentially device fingerprinting data.
What Data Does Xandr (AppNexus) Collect?
As an advertising technology, Xandr (AppNexus) collects browsing data used for ad targeting and conversion tracking. This typically includes pages visited, purchase events, form submissions, and cross-site identifiers that enable user profiling across the 452 websites where it is deployed.
Compliance Considerations
Under GDPR and ePrivacy Directive, websites deploying Xandr (AppNexus) must obtain informed consent before the technology loads, unless it falls under the “strictly necessary” exemption. With a prevalence of 0.2%, Xandr (AppNexus) is one of the less common technologies in our dataset. Vendor risk teams should verify that partners using Xandr (AppNexus) have implemented proper consent management and data processing agreements.
Impact on Privacy Scores
Websites using Xandr (AppNexus) have an average privacy score of 32.2/100 and an average of 34.2 total trackers. The high-risk classification of this technology contributes significantly to score deductions. Our detailed domain reports show exactly how each tracker affects a site's overall privacy grade.