Cherry Seed

How much tracking data am I actually losing?

tracking data loss conversion tracking accuracy missing conversions data loss statistics tracking discrepancy lost attribution data conversion data gaps

Quick Answer

Most businesses lose 20-40% of their tracking data. Ad blockers alone are used by 32.5% of internet users globally (912 million people), and they block analytics scripts entirely. Safari wipes cookies after 24 hours. iOS strips click identifiers. Google Analytics typically misses 15-25% of actual user data, and that gap is growing. For e-commerce specifically, missing 30%+ of conversion data means your ad platform optimisation is working with fundamentally flawed signals.

Full Answer

The number you see in your Facebook Ads Manager or Google Analytics isn't your true conversion count. Multiple factors compound to hide a significant portion of your actual results. The Compounding Loss Each tracking obstacle removes a percentage. They stack: Browser restrictions:

  • Safari/iOS: 26% of web traffic
  • Firefox: ~3% of traffic
  • Brave: ~1% of traffic
  • Chrome (soon): 65% of traffic Ad blockers:
  • Desktop: 25-40% of users
  • Mobile: 10-15% of users
  • Growing year over year Consent rejection:
  • GDPR regions: 30-50% decline tracking
  • CCPA regions: 10-20% opt out
  • Varies by industry and audience Technical failures:
  • Script loading issues: 5-10%
  • Network timeouts: 2-5%
  • JavaScript errors: 1-3% The Real Math Example for a typical ecommerce site: You're seeing 50% of reality. What This Means for Your Business Reported ROAS looks worse than reality: If you're making $5 for every $1 spent,...

Sources

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Cite This Answer

Cherry Tree by Seresa - https://seresa.io/seed/data-loss-adblockers/data-loss-stats