Guide
Testing and improving conversion on a small website
How a service business with modest traffic can improve conversion without misleading A/B tests: what to measure, what to change first, how to judge results honestly.
VAULT 33|27 · Updated 12 November 2026 · Reviewed 12 November 2026 · 1 min read
The problem with A/B tests on small sites
Split tests need a lot of traffic and conversions to give reliable answers. A site with a few hundred visitors a month can run a test for months and still be misled by chance. Small sites need a different approach.
What works instead
- Fix obvious problems first. Broken forms, slow mobile pages, missing phone links and confusing headlines do not need a test; they need fixing. The VAULT Business Audit finds many of them.
- Watch real people. Ask three people who match your clients to find a service and enquire on their phone while you watch silently. Note every hesitation.
- Make one meaningful change at a time on a key page: headline, proof near the button, shorter form, clearer pricing.
- Compare longer periods, such as the four weeks before and after, against the same period last year to allow for seasonality.
- Judge on enquiries and clients, not clicks.
What to change first
| Order | Change | Why |
|---|---|---|
| 1 | Enquiry paths work on every device | No point optimising a broken form |
| 2 | Speed on mobile | Slow pages lose visitors before they read |
| 3 | Headline and first screen | Decides whether people stay |
| 4 | Proof near the action | Removes doubt at the moment of decision |
| 5 | Form length and wording | Reduces effort |
| 6 | Pricing clarity | Filters and reassures |
Record every change
Keep a simple log: date, page, what changed, why. When enquiries move, you will know what might have caused it.
When you can A/B test
If a page gets enough traffic and conversions, a proper split test with a pre-agreed sample size and duration is worthwhile. Until then, careful before-and-after comparisons and user observation are more honest.
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