Nostra AI Enables Persistent User Identification for Intelligems on Jordan Craig’s Website

Background

Jordan Craig, a premier fashion brand recognized for its high-quality streetwear, leverages Intelligems—an A/B testing and pricing optimization platform—to enhance revenue and customer engagement. Like many enterprises in digital commerce, Jordan Craig sought to ensure data hygiene and accuracy to maximize testing, personalization and long-term customer lifetime value (LTV). However, recent shifts in browser privacy policies introduced challenges in maintaining accurate and reliable user data.

The Challenge: Cookie-Based User Identification Disruption

Historically, Jordan Craig relied on client-side cookies to track and segment returning users. However, Apple’s Intelligent Tracking Prevention (ITP) policies in iOS now automatically clear cookies after seven days, severely limiting the accuracy of returning user identification. This introduced critical risks:

• Biased A/B Testing Results: Users who revisit the site after seven days were frequently misidentified as new users, causing uncontrolled variations in test populations.‍
• Revenue Impact: Poor data fidelity led to suboptimal decision-making, affecting conversion rates and LTV.

For enterprise-scale brands running continuous optimization programs, these risks could translate into millions of dollars in lost revenue.

The Solution: Server-Side User Persistence with Nostra AI

Nostra AI provided a seamless, infrastructure-driven solution by replacing Jordan Craig’s reliance on client-side cookies with server-side persistent identifiers. Through deep integration with Intelligems, Nostra AI ensured that returning users were consistently recognized across testing cycles, even beyond the seven-day limitation imposed by iOS.

How It Works:

• Nostra AI maintains and updates user identification via server-side logic, eliminating reliance on short-lived client-side cookies.
• Intelligems leverages Nostra’s persistent identifiers, ensuring accurate segmentation for long-duration A/B tests.
• Enterprises gain full visibility into customer behavior over extended periods, enabling more data-driven personalization and marketing strategies.

Results: Returning users correctly identified jumps to ~99%

A multi week analysis conducted by Nostra and Intelligems demonstrated the tangible impact of Nostra AI’s solution:

Pre- vs. Post-Implementation Data

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The increase in session duration indicates that Nostra AI not only improved identification accuracy but also contributed to an uplift in returning user engagement.

Strategic Impact for Enterprise Commerce

For enterprise brands running continuous experimentation, the implications of these findings are significant:

• Unbiased, Long-Term A/B Testing: Any experiment exceeding seven days—or where conversion rate deltas are within 10%—is at risk of distortion without a persistent tracking solution.
• Increased Personalization & Retargeting Efficiency: Persistent user recognition enables more precise segmentation, improving the effectiveness of lifecycle marketing.
• Revenue Optimization at Scale: With higher data integrity, enterprises can confidently adjust pricing, promotions, and product positioning based on true behavioral insights.

Conclusion: Future-Proofing User Identification with Nostra AI

By integrating Nostra AI, Intelligems and Jordan Craig resolved a fundamental challenge in digital commerce—accurate returning user identification. The solution not only mitigated data loss from iOS privacy changes but also unlocked new opportunities for enterprise brands to enhance customer retention, optimize digital experiences, and drive incremental revenue.

For retailers, leveraging Nostra AI + Intelligems together is essential for any test running longer than seven days or where conversion rate deltas are below 10%—ensuring clean, reliable data for critical decision-making at scale.

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