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Documentation Index

Fetch the complete documentation index at: https://docs.cloudx.io/llms.txt

Use this file to discover all available pages before exploring further.

A/B testing

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Introduction

CloudX splits impressions between a control group running your current setup and a test group running an edited variant. This allows you to try different line items, bid floors, or network configurations without touching production. Throughout the test, CloudX tracks revenue, eCPM, fill rate, and impressions side by side and surfaces daily trends and cumulative comparisons. When you’re ready, you can easily apply the winning variant to production.

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Create an A/B test

CloudX A/B testing splits ad traffic between your current setup and a test variant.
  • Control group A uses your current setup
  • Test group B uses cloned line items that you can edit before launch
Before creating a test, make sure the ad unit:
  1. Belongs to an active app
  2. Has at least one active line item that targets it directly
  3. Has the bidder mappings required by the test configuration
To create an A/B test:
  1. Open Ad Units and select the ad unit you want to test
  2. In the A/B tests section, click Create A/B test
  3. Enter a test name
  4. Choose the traffic allocation for Test group B
  5. Review the line items that will be cloned into the test group
  6. Click Create A/B test
CloudX creates a draft test and clones the direct line items into Test group B.
CloudX recommends a 50/50 split to reach statistically valid results more efficiently. Smaller test allocations, such as 10%, are useful for cautious rollouts, but they usually take longer to collect enough data.

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Start a test

Open the draft test detail page to review the setup before it starts. Start a test In draft status, you can:
  • Update the test name
  • Adjust the traffic split
  • Review the control and test line items
  • Edit the cloned test line items
  • Resolve bidder mapping gaps
Click Start A/B test to begin splitting traffic between the two groups.
Once a test is active, line items in both groups become read-only until the test is finalized.

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Review results

Use A/B Testing in the sidebar to review tests across your account. You can search by test name or ID, and filter by status, app, or ad unit. The test detail page shows:
  • Start date and duration
  • App and ad unit
  • Traffic split
  • Daily trends for Revenue, Impressions, eCPM, and Fill rate
  • Cumulative comparison metrics for control and test
CloudX also keeps a historical line item snapshot so you can review the test configuration after the run ends.

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End the test

To finish an active test, click End test and choose an outcome:
  • Promote test: apply the test-group configuration to the live ad unit
  • Keep control: discard the test-group line items and keep the current production setup
After the test ends, the result remains visible in the A/B Testing workspace for future reference.