Server-Side Tracking: The Antidote to iOS 14.5 & Ad Blocker Chaos
Tired of inaccurate data from client-side tracking? This guide to server-side tracking shows you how to fix fix your marketing attribution.
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By Joris van Huët, Founder & CEOUpdated 3 min read
Run the numbers for your store: the free server-side tracking ROI calculator.
Quick Answer
Server-side tracking is a method of data collection where information is sent directly from your website's server to an analytics or marketing platform's server, bypassing the user's browser (the "client"). This results in more accurate and reliable data, as it is not affected by ad blockers or browser privacy settings.
Your Marketing Data Is a Lie. Here’s Why.
You're spending on ads, but your ROAS is a black box. You think you know what's working, but you're flying blind. The truth? Your data is lying to you. Ever since iOS 14.5, client-side tracking has become a ghost of its former self. You're burning cash, missing opportunities, and letting your competitors eat your lunch. What if you could see exactly what's driving your growth? That's the power of server-side tracking.
What is Server-Side Tracking (and Why Should You Care)?
Imagine your website is a restaurant. With client-side tracking, every customer (browser) tells the waiter (your analytics tool) what they ordered. But what if the customer is wearing noise-canceling headphones (an ad blocker)? The waiter can't hear them. With server-side tracking, the kitchen (your server) sends the order directly to the manager (your analytics tool). The order is always accurate, regardless of what the customer is doing.
That's the fundamental difference. Client-side tracking relies on the user's browser to send data to third-party tools. Server-side tracking sends data from your server to the tool's server. This one change has massive implications for your business.
The Ugly Truth About Client-Side Tracking
Data Inaccuracy: With ad blockers, ITP, and cookie restrictions, client-side tracking is notoriously inaccurate. Can you imagine making a major business decision with that level of uncertainty?
Slow Site Speed: Every tracking script you add to your site slows it down. A slow site means a poor user experience and lower conversion rates.
Privacy Vulnerabilities: Client-side tracking exposes your users' data to third-party scripts, creating privacy and security risks.
The Unfair Advantage of Server-Side Tracking
This means you get a much more accurate picture of your marketing performance.
Faster Site Speed: By reducing the number of scripts running on your site, you can significantly improve your site's performance.
Enhanced Privacy and Compliance: With server-side tracking, you have complete control over what data is sent to third-party tools. This makes it easier to comply with privacy regulations like GDPR and CCPA.
Data Ownership: Your data is your data. With server-side tracking, you own your data and can send it wherever you want.
Frequently asked questions
What is the difference between server-side and client-side tracking?
Client-side tracking collects data in the user's browser, while server-side tracking collects data on your server. This makes server-side tracking more accurate and reliable.Is server-side tracking more expensive?
There can be some initial setup costs, but the long-term benefits of improved accuracy and performance far outweigh the costs.
Go deeper: Causal attribution, explained.
Sixty-second versions of these ideas: Causality Engine on YouTube Shorts.
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Terms in this article
- AnalyticsAnalytics is the systematic computational analysis of data. It reveals customer behavior and measures campaign performance.
- ConversionConversion is a specific, desired action a user takes in response to a marketing message, such as a purchase or a sign-up.
- Conversion rateConversion Rate is the percentage of website visitors who complete a desired action out of the total number of visitors.
- CookieCookie is a small piece of data stored on a user's computer by a web browser, used for tracking behavior, personalizing content, and remembering preferences.
- GDPRGDPR is a European Union regulation governing data protection and privacy, impacting how businesses collect and process customer data.