A CRO test cadence that actually ships
The most common failure mode in conversion optimization isn’t a bad hypothesis — it’s a program that never ships. Teams spend three weeks scoring an ICE matrix, one week building the test, and then the test sits in a QA queue until someone remembers it exists.
We run a weekly cadence instead, and the discipline is less about the hypotheses and more about the operating rhythm around them.
The weekly loop
- Monday — review. Last week’s tests get read out: shipped, called, or still running. Anything still running past its pre-committed sample size deadline gets killed, not extended.
- Tuesday — prioritize. New hypotheses get scored against the same framework every week, not re-litigated. The backlog is a queue, not a debate.
- Wednesday–Thursday — build. Whatever’s next in the queue gets built. No test waits on a “let’s also add” scope creep pass.
- Friday — launch. Tests go live at the start of the following week’s traffic, never mid-week, so sample windows stay clean.
Statistical discipline isn’t optional
A cadence that ships weekly is worthless if the reads aren’t trustworthy. Every test gets a pre-registered minimum detectable effect and sample size before it launches — not after, when it’s tempting to call a result early because the trend line looks good on day three.
The tests we’re proudest of aren’t the ones with the flashiest lift numbers. They’re the ones where we correctly killed a hypothesis that looked promising for the first week and then reverted to flat — because we’d committed to the sample size in advance and didn’t flinch.
Velocity and rigor aren’t in tension. The programs that feel slow are almost always the ones spending their time on prioritization theater instead of on either one.