/conv/ - Conversion Rate

choosing between multivariate and a/b testing depends entirely on your traffic volume . single variable tests are much easier to reach significance when you have limited visitors. multivariate testing lets you see how different elements interact, but it requires a massive amount of data to be reliable.
>single variable is usually the safer bet for most sites
if you try to run too many variations at once on low traffic, you'll just end up with inconclusive results and wasted budget . stick to one major change at a time unless your scale is huge.