What A/B test means
A/B tests replace opinions with evidence. They need enough traffic and a clear goal to give reliable answers, so low-traffic sites may get more from user research. Test one meaningful change at a time.
Why it matters for your website
Opinions about what works on a website are cheap, and they are often wrong. Testing two versions with real visitors shows which headline, button or layout actually brings more calls and sales, so you stop guessing and spend your design budget on changes that pay off.
Example
A home cleaning service tests two hero headlines on its quote page: one about price and one about trusted, background-checked cleaners. After several weeks, the trust headline brings in more quote requests.
Tips
- Change one main thing at a time so you know what caused the difference.
- Decide your success metric, such as form submissions, before the test starts.
- Let tests run long enough to collect a meaningful number of conversions.
Common mistakes
- Ending a test after a day or two because one version looks like it is winning.
- Running tests on low-traffic pages where results will never reach a reliable answer.
Questions about A/B test
What is A/B test?
Showing two versions of a page or element to different visitors to see which performs better.
How much traffic do I need to run an A/B test?
There is no single number, but you need enough conversions on each version to trust the result. Low-traffic sites often get more value from user feedback and best-practice fixes than from formal tests.
Does A/B testing hurt SEO?
Not when done properly. Google advises against showing search bots different content than users, using rel=canonical on test variants and 302 redirects for split URLs, and ending tests once you have an answer.
