GrowthBook
text published 2025-09-09 · Open on LinkedIn ↗
The problem with A/B tests? They end. But what about the cumulative impact of 50 features shipped over 6 months? Enter Holdouts: the experiment that never stops watching. Here's how it works: → Keep 5% of users on the original experience indefinitely → Everyone else gets your latest features → Measure the REAL long-term impact of your product evolution We built this because product teams kept asking: "How do we prove our quarter's work actually moved the needle?" Now you can. No more guessing if your 47 "successful" experiments actually compound into business value. Holdouts give you the baseline that matters. P.S. Yes, it works with your data warehouse. Yes, you can self-host it. And yes, your data never leaves your infrastructure. 🔗 Learn more: https://lnkd.in/ggJ6uczu #ExperimentationPlatform #ProductEngineering #DataScience
Engagement over time
Only one snapshot so far — the engagement-over-time curve appears once the daily scrape has captured this post at least twice.