3 min read
Variant persistence: why a visitor must always see the same version
If someone sees variant B on Tuesday and variant A on Friday, you haven't run an experiment. You've run a bug that also produces numbers.
Everything we have published on Audience targeting: guides, experiments and what we learned along the way.
6 articles
3 min read
If someone sees variant B on Tuesday and variant A on Friday, you haven't run an experiment. You've run a bug that also produces numbers.
3 min read
Stacking conditions makes the segment sharper and the sample smaller. Here's how to know when the trade is worth it — and when you've segmented yourself into noise.
3 min read
You wrote a specific ad and then sent the click to a generic page. Message match is the cheapest conversion lift available to a small brand, and UTM targeting is how you get it.
3 min read
Responsive design made one page serve every screen. It didn't make one experiment serve every screen — and most flat results are a mobile win cancelling a desktop loss.
3 min read
A first-time visitor needs to be convinced. A returning one needs to be let through. Showing both the same page is the most common unforced error in CRO.
3 min read
Shipping expectations, payment habits, price sensitivity and trust signals vary by market. Averaging across them is how you get neutral results that hide real effects.