.tk is the Internet country code top-level domain (ccTLD) for Tokelau, a territory of New Zealand in the South Pacific. Tokelau allows any individual to register domain names. Users and small businesses may register any number of domain names free of charge (with some restrictions). In addition to the name itself, users can opt to forward their web traffic using HTML frames and their email traffic, with a maximum of 250 addresses per user log in, or use full DNS, either via their own or third-party servers, or by using Dot TK's servers. There are content restrictions for free domains, banning sites containing sexual content, drug use, hate speech, firearms, and spam or copyright infringement. Dot TK requires free domains to have a regular traffic of visitors, and if a domain's redirect target does not work (even temporarily) the domain is taken offline. If a domain violates any of these terms, it is replaced by a Sedo advertisement page, and no advance warning is given. Dot TK also provides .tk websites with the option to join a network called TiKinet, a close-knit network that links sites to each other based on keywords called TiKilinks. The network is expected to increase traffic to the websites, many of which are personal sites and blogs operated by individuals who otherwise would have no way to advertise their sites. To be able to get a "special" .tk domain name the user must buy it. This includes trademark domain names for most Fortune 500 companies and common dictionary terms. Paid domain names cost US1000. Dot TK launched a new service called TweaK for Twitter users in April 2010, offering a URL shortening service that uses less space than many others, and for Facebook where the user can rename Facebook account pages with a .tk name. In 2016, Nominet released a world map where each country was resized according to the popularity of its top-level domain.