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Industries
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Cross-industry engineering experience across regulated and high-growth sectors.
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Near Real-Time Analytics Tracking for Zalando
Replacing delayed GA4 event delivery with direct real-time event streaming to internal systems.
15–90 min → ~0
event delay with direct backend streaming.
3 platforms unified
with a single framework delivering tracking across Web, iOS, and Android.
Technologies
GA4 abstraction layer
Swift
Kotlin
Web
Expertise
Mobile analytics
Tracking infrastructure
Real-time data engineering
Client Overview
Zalando
Zalando is one of Europe’s leading online retail platforms with 51 million active users across 25 markets. Headquartered in Berlin, Zalando specializes in fashion and lifestyle, managing a high-volume digital ecosystem with global reach.
Industries
Retail, E-commerce, Fashion
Headquarters
Berlin, Germany
Company size
10,000+ employees
Challenges
Delayed Analytics Limiting Real-Time Decisions
After migrating to GA4, Zalando expected near real-time analytics delivery. In practice, event processing delays made it difficult to rely on analytics data for operational decisions and marketing optimization.
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Let’s build analytics infrastructure that delivers real-time insights across your digital platforms.
External dependency on Firebase
GA4 relied on Firebase for event processing, introducing delays outside of Zalando’s control.
Analytics delivery latency
Events took up to 15 minutes on iOS and up to 90 minutes on Android to reach internal systems.
Cross-platform complexity
A tracking framework needed to support Web, iOS, and Android without requiring changes to existing instrumentation.
Have a Similar Problem?
Let’s build analytics infrastructure that delivers real-time insights across your digital platforms.
Why They Chose Us
Trusted Data and Tracking Engineering Partner
Zoolatech was selected to design and implement a scalable tracking architecture capable of delivering real-time analytics while integrating seamlessly with existing instrumentation.
Real-time data engineering expertise
Zoolatech brings strong expertise in building high-performance event streaming and analytics pipelines that enable near real-time data availability.
Scalable tracking infrastructure
Our teams design flexible analytics frameworks that integrate with existing instrumentation while enabling future evolution of tracking capabilities.
Zoolatech is a senior-heavy engineering firm with Silicon Valley roots and a Miami HQ, specializing in legacy modernization, system re-architecture, and AI deployment to drive long-term, compounding value.
2017
Year Founded
600+
Employees
96%
Client Satisfaction
Workflow
Building a First-Party Real-Time Tracking Framework
The initiative focused on designing a new tracking layer capable of delivering analytics events directly to internal systems while preserving compatibility with existing integrations.
Phase 1
Architecture design
Defined a tracking architecture that mirrored the existing GA4 abstraction layer while enabling direct event streaming.
Phase 2
Cross-platform implementation
Implemented the Near Real-Time Tracker across Web, iOS, and Android.
Phase 3
Backend event streaming
Enabled direct streaming of analytics events to internal backend systems, bypassing Firebase processing delays.
Phase 4
Integration validation
Ensured compatibility with existing instrumentation patterns so proposition teams required no implementation changes.
A first-party analytics infrastructure enabled real-time visibility, faster optimization, and full control over data delivery.
Solution
Near Real-Time Tracking Framework
Zoolatech built the Near Real-Time Tracker (NRT), a scalable tracking solution designed to deliver analytics events instantly to internal systems.
GA4 abstraction integration
The NRT tracker follows the same abstraction layer design as GA4, ensuring seamless integration with existing instrumentation.
Direct backend event streaming
Analytics events are streamed directly to internal systems without external Firebase processing.
Unified cross-platform framework
The solution provides a single analytics tracking framework covering Web, iOS, and Android platforms.
Results
Real-Time Analytics for Faster Decisions
The new tracking infrastructure eliminated analytics delivery delays and enabled real-time insights across digital products.
Eliminated analytics latency
Events that previously arrived after 15–90 minutes now reach internal systems in near real time.
Unified tracking framework
A single solution now powers analytics delivery across Web, iOS, and Android.
Zero disruption for product teams
The abstraction layer allows the tracking framework to evolve without impacting proposition teams.
Business Value
Enabling the Future of Engagement Analytics
The new infrastructure establishes a scalable foundation for advanced user behavior and engagement analytics.
First-party analytics control
Zalando now controls analytics event delivery without dependency on Firebase processing.
Foundation for engagement measurement
The NRT event stream enables future capabilities such as dwell-time tracking and deeper behavioral analytics.
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