Retail
E-commerce

More revenue and 36% lower cost per conversion with JENTIS

With server-side tracking from JENTIS, aqua blue was able to significantly increase the ROI of its performance campaigns.

36%
lower CPC over all campaign types
29%
lower cost per conversion
Increased orders
due to performance improvement

About aqua blue®

aqua blue is a Germany-based manufacturer of descaling systems for household use. The company’s mission is to make sustainable water treatment solutions accessible to a broad audience, focusing on direct-to-consumer (D2C) distribution through its own online store.

Executive Summary

To drive sustainable growth through performance marketing, aqua blue implemented server-side tracking with JENTIS. The improved data quality enabled the company to accurately capture conversion data and feed it into Google Ads. The result: a 36% lower Cost per Conversion (CPC) in PMAX campaigns and a significantly higher ROI across all campaign types.

Challenge

aqua blue relied heavily on Google Ads PMAX and search campaigns to acquire new customers. However, their previous client-side tracking setup (using Google Tag Manager and Google Analytics) faced serious limitations:

  • Ad blockers and browser privacy features (e.g. Apple’s ITP) caused data loss
  • Incomplete conversion data reduced the effectiveness of algorithmic bidding and targeting
  • Duplicate user counts and gaps in customer journeys distorted analytics and decision-making

To overcome this, aqua blue needed a data-resilient, precise, and future-proof tracking solution.

Results & Impact

By implementing JENTIS server-side tracking, aqua blue achieved:

  • –36% Cost per Conversion in PMAX campaigns
  • –29.3% CPC across all campaign types
  • More orders and higher revenue through better optimization
  • Significantly improved ROAS, driven by accurate and complete conversion data
  • Reliable user recognition thanks to persistent first-party cookies
  • A future-proof tracking setup that’s adaptable to changing privacy regulations

Learn More
The full case study is available for download here.

With server-side tracking from JENTIS, we were able to significantly increase the ROAS of our Google Ads campaigns – for us, the solution is a real game changer and a revenue factor.
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Thomas Löhnert
General Manager
Tag Management
Essential Mode
Retail
E-commerce