> For the complete documentation index, see [llms.txt](https://keak.gitbook.io/keak-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://keak.gitbook.io/keak-docs/basics/editor/previewing-and-selecting-variations.md).

# Previewing and Selecting Variations

Previewing is as simple as clicking on a variation in the sidebar – your webpage will instantly update to show that version of the content​

You can toggle between the original and any variation to visually compare them. Take this time to review the changes or even show them to colleagues. If something doesn’t look right, you can always edit the variation again or generate a new one.

If you’d like to **share the preview** with others who aren’t present, Keak provides a handy way to do so (covered in the [Sharing a Preview Link section](/keak-docs/basics/editor/sharing-a-preview-link-optional.md)). But if you’re satisfied with a particular variation and want to move forward with testing it, you’re ready to start an A/B test.


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# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://keak.gitbook.io/keak-docs/basics/editor/previewing-and-selecting-variations.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.