A commitment not to index more than a certain amount of a publisher’s content without an explicit agreement to do so (i.e. how much of a publisher’s article should be included in search results, on Google News or on Facebook’s news feed). While Chapter 4 suggests indexing has, to date, increased traffic to publishers’ websites, there is a risk that platforms could include “too much” of publishers’ content on their websites, and thereby reduce click-through rates.