This experiment measured the impact of adding text labels to three icon-only nav items. 

In this simple experiment on an article page, the variation slid out a sticky call to action linking to the next article. The sliding interaction triggered after some scrolling threshold (around 1000px or so). Afterwards, the sticky call to action maintained its floating position. The experiment measured clicks on this "next article" button.

This experiment variation prompted users to save (bookmark) a company profile on a company detail page. Clicking on the save feature while logged out, would prompt a registration modal. Hence the save feature acted as an extra reason to signup. The number of people engaging or interacting with the feature was measured, as well as registrations.

In this experiment, a simple link to a newsletter signup landing page was added at the bottom of an article. The newsletter landing page then encouraged users to provide their email address for future article updates.