This page is about timing — when to start. For how to run the program see the CRO pillar; for staffing see agency vs in-house.
When Is Your Site Ready for a CRO Program?
Your site is ready for a formal CRO program when it has stable, repeatable traffic of roughly 10,000 monthly visitors, at least 1,000 monthly conversions on the target flow, a working analytics setup you trust, and no unfixed obvious defects. Missing any of those, testing produces noise rather than learning.
What Traffic and Conversion Volume Do You Need?
| Monthly conversions | What is viable |
|---|---|
| Under 200 | Qualitative research and heuristic fixes only |
| 200–1,000 | Big swing tests on high-impact pages, long run times |
| 1,000–5,000 | A steady two to four tests per month |
| 5,000+ | Continuous testing, segmentation, personalisation |
Run your own numbers first — see A/B test sample size.
What Should You Fix Before Testing Anything?
- Broken or untracked conversion events — an untrustworthy baseline invalidates every test.
- Page-speed and mobile-layout defects. See mobile CRO.
- Missing trust and proof basics, which are fixes rather than experiments. See website trust.
- An unclear value proposition above the fold — see above-the-fold optimisation.
What Do You Do If You Are Below the Threshold?
Below the threshold, replace split testing with research and repair. Session recordings, exit surveys, a heuristic audit and sequential fixes to obvious defects generate more improvement per week than an underpowered test that never reaches significance.
Adding proof and reassurance is the highest-yield repair at low volume — see social proof for landing pages.
Which Signals Say You Are Ready Now?
- Traffic is stable month to month, not spike-driven.
- You can name your primary conversion and trust its number.
- Someone owns implementation and can ship a variant within a week.
- There is a backlog of hypotheses grounded in research, not opinions.
What Should the First 90 Days Look Like?
Spend the first month on research and measurement hygiene, the second on two or three high-leverage tests on your highest-traffic template, and the third on compounding what won and documenting what did not.
Avoid the common early errors listed in A/B testing mistakes.
Key Takeaways
- 1,000 monthly conversions is the practical floor for regular testing.
- Fix tracking and obvious defects before running any experiment.
- Below the floor, research and repair beat underpowered tests.
- Month one is measurement, not experiments.