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    Can I QA variants without sending real traffic?

    From the Tailor AI team · Reviewed

    Answer

    Yes. Use the Tailor Chrome extension’s preview button or add ?preview_mode=treatment to the page URL. No real traffic is affected.

    Two ways to preview: (1) Open the Tailor Chrome extension on the page, find the variant you want, and click the preview button (the external-link icon). This opens a new tab with the correct preview_mode parameter already set. (2) Manually add ?preview_mode=treatment to the page URL. For experiments with multiple variants, use the variant-specific ID like ?preview_mode=L3z9fg. Preview links are shareable with anyone, no extension required on the viewer’s end.

    Steps

    1. Open the Tailor extension and click the preview button (external-link icon) for your variant.
    2. Or add ?preview_mode=treatment to the URL manually.
    3. Test on both mobile and desktop.
    4. Verify tracking fires on control and variant.

    Caveats

    Preview mode may not perfectly replicate production caching (CDN cache is not warmed for preview requests, so initial load may be slightly slower).

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