1. Figure 1: Prisma flow-diagram (see Moher et al., 2009) for literature included in this study.
2. In a different context regarding search results the Court of Justice held for example that the "activity of search engines plays a decisive role in the overall dissemination of those data in that it renders the latter accessible to any internet user making a search on the basis of the data subject's name, including to internet users who otherwise would not have found the web page on which those data are published;That said, it is apparent that domain names play a crucial role in the access to websites
3. is broadly implemented, which is intended to replace IPv4 (32 bit). See also fully qualified domain name in RFC 2181: Clarifications to the DNS Specification;It will be rendered even more difficult, once the novel standard for the internet protocol IPv6 (128 bit),1997