A/B testing overview
A/B testing lets you show different versions of a page on the same public URL and measure which version converts better. Atomicat splits the traffic for you, keeps each visitor on the same version, and reports the results so you can pick a winner with data instead of guessing.
Where each part lives
| Where | What you do there |
|---|---|
| Atomicat platform → A/B Tests | Create, edit, activate, redeploy, archive, delete, and declare a winner. Declared winners show on the test card. |
| Analytics app → A/B Tests tab | Read visitors, conversions, lift, traffic health, trends, and decisions. Declared winners show as Winner / Not selected. |
| Your published pages | Nothing extra. Tracking is automatic on published Atomicat pages. |
Configuration always happens in the platform. While a test is running, only the name and hypothesis can be edited — structure and goal stay locked. When you click View in Analytics on a test, the Analytics app opens with that test preselected.
How it works (in simple terms)
- You pick a public entry path (for example
/offer) and two or more variants (published Atomicat pages or external URLs). - When you activate the test, Atomicat deploys a small routing rule to the CDN edge of your site.
- Each visitor is randomly assigned a variant based on your traffic weights. The URL never changes, and the visitor keeps seeing the same variant on every visit.
- Every page view and click is tagged with the test and variant, so the Analytics app can compare conversion rates per variant.
Who can use it
- A/B Tests is available to all paid Atomicat accounts.
- Your site must be hosted on Atomicat's Bunny or AWS infrastructure (most sites are).
- Variant pages must be published before a test can be activated.
Quick links
- Test types — page variants, split URL, external redirect.
- Goals — what counts as a conversion.
- Test lifecycle — draft, running, archived, and editing rules.
- Reading results — visitors, lift, SRM, and decisions.
- Declaring a winner — ship the winning page.
- How to create an A/B test — step-by-step guide.
Frequently asked questions
Does the visitor see a different URL for each variant?
For Atomicat page variant tests, no — all variants stay on the same public entry URL. For Split URL and External redirect tests, visitors are redirected (302) to the assigned destination URL.
Will the same visitor see different versions?
No. Each visitor is assigned one variant and keeps it on every visit, using a combination of deterministic assignment and a cookie.
Can I run more than one test at the same time?
Yes. You can run multiple tests on the same site as long as each test uses a different entry path.
Does A/B testing slow my page down?
No. Routing runs at the CDN edge and the variant page is served directly, so visitors get normal page speed.