A/B Testing Your Law Firm's Website: What's Worth Testing Before You Touch the Contact Form
Most law firms redesign their website every few years and hope the new version converts better. That's expensive, slow, and you never actually learn why something worked. A/B testing flips that: you make one change at a time, split traffic between the old and new version, and let real visitor behaviour tell you which wins. 💖
What most firms get wrong: testing everything at once (new photos, new copy, new layout, new form) so when conversions go up or down, nobody knows which change actually caused it. The other common mistake is stopping a test after three days because 'it looks like it's winning' — small sample sizes lie constantly.
The One-Change Testing Framework
For each test, fill in this template before you touch the site:
- Page: which single page (e.g. Family Law practice area page)
- Element: the one thing changing (headline, CTA button text, form length)
- Hypothesis: "If we change X, enquiries will increase because Y"
- Success metric: form submissions or calls started, not page views
- Minimum run time: two full weeks or 100 conversions, whichever is longer
How to actually run one
You don't need enterprise software. Google Optimize is gone, but simple tools built into most website platforms — or even a basic split via your ad platform's landing pages — will do it. Send half your traffic to version A and half to version B, track form submissions or call clicks as the goal, and don't peek at results daily. Wait for the full run time, then compare.
Mistakes to avoid
- Changing five things at once and calling it a test — you'll never know which change mattered.
- Ending the test early because one version 'looks' ahead after two days of low traffic.
- Testing on your lowest-traffic page, where it'll take months to get a meaningful sample.
- Only tracking page views instead of the action that actually matters — a booked call or submitted form.
Frequently asked questions
How much traffic do we need to test?
Enough for roughly 100 conversions per version before you can trust the result — for a low-traffic practice area page, that might mean testing something higher up the funnel instead, like your homepage.
What should we test first?
Whatever page sits closest to the phone ringing: your contact page, your primary practice area page, or your call-to-action button. Skip testing your About page first — it rarely moves enquiries directly.
Can we test our Google Ads landing pages too?
Yes, and it's often easier since paid traffic volume is more predictable and you're already tracking conversions for the ad spend.
Honestly, is this worth it for a small firm?
If your website gets under a few hundred visits a month, formal A/B testing will take too long to reach significance — you're better off making one confident change at a time and watching the trend over a quarter.
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