1. Providers of online intermediation services shall include in their terms and conditions a description of any differentiated treatment which they give, or might give, in relation to goods or services offered to consumers through those online intermediation services by, on the one hand, either that provider itself or any business users which that provider controls and, on the other hand, other business users. That description shall refer to the main economic, commercial or legal considerations for such differentiated treatment.

2. Providers of online search engines shall set out a description of any differentiated treatment which they give, or might give, in relation to goods or services offered to consumers through those online search engines by, on the one hand, either that provider itself or any corporate website users which that provider controls and, on the other hand, other corporate website users.

3. The descriptions referred to in paragraphs 1 and 2 shall cover in particular, where applicable, any differentiated treatment through specific measures taken by, or the behaviour of, the provider of online intermediation services or the provider of the online search engine relating to any of the following: