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We enable established businesses to track and analyze their users' digital interactions and view that data in unified dashboards. This way we empower them to optimize marketing investments and unlock hidden growth opportunities.
Businesses around the world trust our expertise:
Leverage the power of data to make educated
decisions and scale faster.
Imagine having a data engine running 24/7 on auto-pilot:
Our custom-built solutions blend cutting-edge tracking and analytics implementations with robust data integration, conversion tracking, and reporting. By leveraging powerful platforms we create bespoke, unified dashboards that answer your important questions and enable you to make decisions based in data.
An automated system that empowers you to understand your users, enhance performance, and drive continuous growth.
We design and build your bespoke tracking, analytics, and reporting engine according to your unique data and business need.
Our comprehensive, done-for-you service covers every step: from initial consultation, situational analysis, and requirement gathering, to measurement planning, custom data pipeline development, data processing, and in-depth analysis. We then build automated reporting dashboards that deliver actionable insights to your team and key stakeholders, ensuring ongoing monitoring, maintenance, and enhancements as your business grows.
Since 2017, we’ve empowered hundreds of businesses to harness their data for smarter decision-making, operational efficiency, and accelerated growth — because data isn’t just part of the process - it’s in the heart of your success.
We live and breathe data — transforming it into your competitive advantage!
Our Framework
We follow a proven system to build a custom solution for your tracking, analytics, and reporting needs.
1. Strategic Planning
We start by understanding your business goals and reviewing your current data and tracking setup. This allows us to create a custom roadmap to close your identified data gap.
2. Implementation
We set up state-of-the-art tracking systems, create tailor data models, and build seamless data pipelines that capture and centralize your data — focussing on quality and accuracy at every step.
3. Reporting & Insights
With clean, centralized data available, we develop engaging, interactive Looker Studio dashboards and reports. These tools deliver real-time insights that empower you to make swift, data-backed decisions with confidence.
Our Core Toolbox
We use powerful tools that grow with your business:
Tag Management & Tracking
Google Tag Manager
We use GTM to monitor user engagement and conversions and report data to different tools & platforms. It allows deployment and management of analytics and marketing tags in a secure, flexible, and easy to maintain environment, with minimum reliance on IT or tech support.
Web Analytics & Attribution
Google Analytics
We use GA to track traffic sources, user behavior, goal conversions, and eCommerce, and to measure campaign performance and create attribution models to understand the true ROI of different channels and marketing activities.
Data Visualization & Reporting
Looker Studio
We use Looker Studio to create visual reports and custom dashboards to provide your teams and stakeholders with the insight they need for their day-to-day decision making.
Data Transformation & Warehousing
BigQuery
We leverage Google's high-performance, fully managed data warehouse solution, capable of handling petabytes of information, to seamlessly integrate your online and offline data. This gives your business access to sophisticated capabilities in data processing, transformation, and machine learning.
... and integrate platforms like
We help established businesses scale and accelerate growth
Only Few Projects
We work on only a few projects at a time to ensure quality and attention to detail.
Full
Dedication
to client success - we treat your business like our own. Top quality, long-term thinking, and no shortcuts.
100+ Happy Clients
We work closely with each client, delivering tailored, high-quality solutions that drive real results.
But Hey, Don't Take Our Word For It!
See what others are saying:
“Within 24 hours, Sascha immediately diagnosed all of the issues, provided detailed recommendations, and implemented the solutions. I cannot recommend Sascha enough, especially if you care about making every online ad dollar count.”
Sean Jackson
CEO & Co- Founder of Pouncer AI
“He is my go-to guy for all the tracking and analytics.”
Justin Bauer
Coach, Digital Product Creator
“He figures everything out and the tracking becomes so much easier.”
Eric Jukelevics
Digital Entrepreneur
“He helped our companies with CRO, Analytics, and getting the data we need!”
Jesse Wilcoxon
CMO
“I always come back to him, because I trust him and I trust the quality of his work.”
Rose Radford
Business Coach
“We are now able to optimize our ad campaigns much better than before!”
Alexander König
Ecom Shop Owner & Consultant
“From the very beginning, I felt really understood. Everything was super professional and clearly mapped out!”
Eduardo Le Compe
Online Entrepreneur & Marketer
“I searched my network and in big Facebook groups – I couldn’t find anyone like him!”
Paul de Zeuuwe
Marketing Agency Owner
“Even after the project was already completed he was always available for us!”
Jana Ho
Marketing Manager
“We have significantly improved our capability to track and measure and get data for our marketing department!”
Cole Vineyard
Ecom Shop Owner
“He's an epic part of our business and we couldn't recommend him highly enough!”
Mitch Horton
Agency Owner
“We see 20-30% better results in our ads and we finally can scale our campaigns without wasting money.”
Tobias Ditus
Agency Owner
“Thanks to his support, we achieved exactly the setup we needed.”
Michael Vetter
Ecom Business Owner
Still scrolling?
Here are more experience reports...
“We experienced a server-side signal loss with the Shopify Facebook CAPI integration overnight with no changes on our side. We spent weeks trying to figure out the issue by using multiple developers + a specializing analytics firm, switching our native Shopify CAPI integration, and countless emails back and forth.
Yet, nothing worked until we found Sascha. After understanding the history, a lot of investigative work, and troubleshooting, Sascha was able to get everything working perfectly within 48 hours. He was fast, efficient, and honest.I will work with him again and he's likely one of the most experienced freelancers on Upwork, specializing in server-side tracking. Don't be cheap. Use Sascha!”
Angie K.
Online Shop Owner
"Sascha spent the time to understand my business in detail and design a landing page that outperformed my control by 416%! What I like about Sascha's approach is that he's data-driven. He made the appropriate tweaks based on insights gained from analytics. He's a great talent to have on your team. I'll be hiring him again for my next project."
"Sascha was truly invested in my project. He is an extremely amazing communicator who is also perceptive and highly skilled. I would recommend him to everyone! He goes above and beyond to make his client happy. He is a unicorn! (A rare find. Almost unbelievable!) Thank you, Sascha!"
"Our tracking had been in shambles lately. Sascha helped us with our problem and solved it efficiently! Would definitely recommend him and will surely work with him again!"
"Sascha helped us do a complete overhaul of our conversion tracking and analytics. He is great to work with and highly recommend him for SEM, Conversion Track, CRO and Analytics."
"I can't recommend Sascha highly enough. He is very knowledgeable and professional to work with. If you need help with analytics, conversion tracking or GTM, he is the person you need to see. The work he did for our website has already paid for itself."
"Working with Sascha was awesome! He is very thorough and understood what I needed immediately. He helped install Facebook Conversions API into our Clickfunnels system and also implemented Google Tag Manager quickly. We've seen an increase in performance from our ad spend ever since. Looking forward to working with him in the future."
"Best freelancer out there. Don't think; just hire him and let him fix all your problems."
"Sascha is a true professional! He quickly resolved our post iOS tracking issue while making the entire process painless. Highly recommended!"
"I hired Sascha to get my Facebook tracking right, and he did a fantastic job! He is highly knowledgeable, and provided excellent support throughout the whole project. Thank you, Sascha!"
"Sascha is an analytics and tracking expert. He knows his stuff with Google Tag Manager, Facebook CAPI. He always gets the job done!"
"Sascha is the ultimate professional. Smart, highly skilled, personable, reliable. Love this guy!"
"He's very knowledgeable regarding the implementation of CAPI. It was a great experience working with him!"
"Sascha understood our concern clearly and did a great job in fixing the tracking issue that we had in our funnel. His work was beyond our expectations. He can be your go-to guy for all things related to tracking. Highly Recommend!"
"Extremely good freelancer for any custom GTM implementation. Better than any agency!"
"Sascha went above and beyond what was required for this job. He finished what other freelancers said would take weeks in days. He is a top freelancer and we'll be working with him again very soon."
"Sascha has helped me a number of times and I am always impressed. He goes about his work with professionalism, skill and speed and ensures everything is set up to a high standard. Sascha went above and beyond on a tricky issue to help find a solution. Thanks heaps and I look forward to working with you again soon, Sascha."
"Sascha is a top guy and has been amazing for us when it comes to setting up conversion tracking. Whatever the task, Sascha has executed with precision everytime. Highly recommended to anyone needing expert level conversion tracking and high quality service and communication."
"Sascha is exceptionally competent and friendly. It was a pleasure to work with him, and we will definitely hire him again. He is highly skilled, incredibly responsive, and always has a solution to any problem. You can count on him to fully commit to a project and deliver his best work without leaving you hanging. Thank you, Sascha!"
“Sascha is one of the best freelancers we have ever worked with; highly professional, clear communications, strong attention to detail, and goes above and beyond.
THE RESULT?? In less than 1 week our conversion tracking saw a 10X improvement within Google Ads and Meta! This is a huge result for a company that relies on Google/Meta Ads for sales.
They say you get what you pay for and Sascha's contribution was significantly more than what we paid. If you rely on Google/Meta for your online advertising and marketing and struggle to get all the Google and Meta properties to properly track attribution, then you MUST HIRE Sascha - he can improve your results almost instantly.”
Sean J.
SaaS Owner
Still undecided?
No worries!
Feel free to reach out to me on Upwork. There you can also see all my verified reviews and past projects. Also, Upwork may act as an escrow service, in case this is a concern to you (Upwork's fees may apply). Either way, I'm looking forward to hearing from you!
"Best freelancer out there. Don't think; just hire him and let him fix all your problems."
"Sascha is a true professional! He quickly resolved our post iOS tracking issue while making the entire process painless. Highly recommended!"
"I hired Sascha to get my Facebook tracking right, and he did a fantastic job! He is highly knowledgeable, and provided excellent support throughout the whole project. Thank you, Sascha!"
"Sascha is an analytics and tracking expert. He knows his stuff with Google Tag Manager, Facebook CAPI. He always gets the job done!"
"Sascha is the ultimate professional. Smart, highly skilled, personable, reliable. Love this guy!"
"He's very knowledgeable regarding the implementation of CAPI. It was a great experience working with him!"
"Sascha understood our concern clearly and did a great job in fixing the tracking issue that we had in our funnel. His work was beyond our expectations. He can be your go-to guy for all things related to tracking. Highly Recommend!"
"Extremely good freelancer for any custom GTM implementation. Better than any agency!"
"Sascha went above and beyond what was required for this job. He finished what other freelancers said would take weeks in days. He is a top freelancer and we'll be working with him again very soon."
"Sascha has helped me a number of times and I am always impressed. He goes about his work with professionalism, skill and speed and ensures everything is set up to a high standard. Sascha went above and beyond on a tricky issue to help find a solution. Thanks heaps and I look forward to working with you again soon, Sascha."
"Sascha is a top guy and has been amazing for us when it comes to setting up conversion tracking. Whatever the task, Sascha has executed with precision everytime. Highly recommended to anyone needing expert level conversion tracking and high quality service and communication."
"Sascha is exceptionally competent and friendly. It was a pleasure to work with him, and we will definitely hire him again. He is highly skilled, incredibly responsive, and always has a solution to any problem. You can count on him to fully commit to a project and deliver his best work without leaving you hanging. Thank you, Sascha!"
"Sascha spent the time to understand my business in detail and design a landing page that outperformed my control by 416%! What I like about Sascha's approach is that he's data-driven. He made the appropriate tweaks based on insights gained from analytics. He's a great talent to have on your team. I'll be hiring him again for my next project."
"Sascha was truly invested in my project. He is an extremely amazing communicator who is also perceptive and highly skilled. I would recommend him to everyone! He goes above and beyond to make his client happy. He is a unicorn! (A rare find. Almost unbelievable!) Thank you, Sascha!"
"Our tracking had been in shambles lately. Sascha helped us with our problem and solved it efficiently! Would definitely recommend him and will surely work with him again!"
"Sascha helped us do a complete overhaul of our conversion tracking and analytics. He is great to work with and highly recommend him for SEM, Conversion Track, CRO and Analytics."
"I can't recommend Sascha highly enough. He is very knowledgeable and professional to work with. If you need help with analytics, conversion tracking or GTM, he is the person you need to see. The work he did for our website has already paid for itself."
"Working with Sascha was awesome! He is very thorough and understood what I needed immediately. He helped install Facebook Conversions API into our Clickfunnels system and also implemented Google Tag Manager quickly. We've seen an increase in performance from our ad spend ever since. Looking forward to working with him in the future."
Sascha Herpertz
dba Mercareo GmbH
St.-Georg-Str. 1
21423 Winsen, Germany
VAT ID: DE314228477