Anti-flicker is a pre-render guard that briefly hides page content until experiment variants are applied, so visitors do not see the original version flash before the test version loads.
Category
Bloomreach Campaigns
Also known as
anti-flicker snippet; flicker guard
Without it, a personalization or A/B test that changes visible content can show the default first and then swap, a flicker that undermines both the experience and the test. The guard trades a small delay for a clean render.
In practice
Keep the anti-flicker timeout short and scoped to the elements that actually change. A long or page-wide hide may fix flicker, but it makes the whole page feel slow, which is its own conversion problem.
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