Netlify's Split Testing (beta) allows you to direct your site visitors to different versions of your site, invisibly shaping traffic at the CDN level and serving different branches without changing the URL. With a few clicks, you can specify percentage allocations for each branch and rely on Netlify's intelligent CDN to handle version affinity and repeat visitor preferences. A cookie provided by the CDN ensures returning users gain access to the same branch, with a useful side effect of allowing visitors to opt into new features or versions. This technique is used at Netlify when trialling new features and running betas, as demonstrated in a short video showcasing how to set up a split test and provide a UI for site visitors to access the new version. For more information on running split tests and measuring results, refer to the Split Testing documentation.